Bring Acceptable Identification
Travelers age 18 and older should carry a REAL ID-compliant license, passport, or another form of identification accepted by the TSA.
Learn how to prepare for TSA screening, pack your carry-on correctly, avoid common security delays, and move through airport checkpoints with confidence.
Preparing before you reach the airport can make the security screening process faster, easier, and less stressful for everyone in your family.
Travelers age 18 and older should carry a REAL ID-compliant license, passport, or another form of identification accepted by the TSA.
Most liquids, gels, creams, pastes, and aerosols in a carry-on must be in containers of 3.4 ounces or less and placed in one quart-size bag.
Keep your identification, boarding pass, liquids, medications, and electronics easy to reach in case they must be removed for screening.
Security lines may be longer during holidays, weekends, early mornings, and other busy travel periods, so arrive with time to spare.
Laptops and other large electronics may need to be removed from your bag unless a security officer directs you otherwise.
Screening procedures can vary by airport and checkpoint. Always follow the instructions provided by the security officers working your lane.
Screening requirements may differ depending on the airport, destination, checkpoint equipment, and current security guidance. Review official TSA information before traveling, especially when carrying unusual items, medications, medical supplies, or specialty equipment.
Airport security is an important part of every flight, whether you're traveling across the country or around the world. Understanding how the screening process works—and preparing before you arrive at the airport—can help make your travel experience smoother, faster, and far less stressful.
Every passenger, carry-on bag, and checked suitcase goes through multiple layers of security screening before boarding an aircraft. These procedures are designed to protect passengers, airline crews, airport employees, and the aviation system from potential threats while allowing millions of people to travel safely every day.
Most travelers will find that the security process is quick and routine. Delays are often caused by prohibited items, oversized liquids, forgotten electronics, or travelers arriving unprepared. Spending just a few minutes organizing your belongings before leaving home can save valuable time once you reach the checkpoint.
Airport security officers use a combination of identification verification, boarding pass validation, X-ray screening, advanced imaging technology, explosive detection equipment, and physical inspections when necessary. Screening procedures may vary slightly from one airport to another depending on the technology installed and current security requirements.
It's important to remember that airport security is separate from airline check-in. Even after checking in online and receiving your boarding pass, you'll still need to complete the required security screening before proceeding to your departure gate.
Every traveler passes through airport security before boarding, regardless of destination, airline, or ticket class. Even expedited screening programs follow established security procedures.
Having your identification ready, following carry-on rules, and organizing electronics and liquids before reaching the checkpoint can significantly reduce delays.
Security requirements may change as new technology is introduced or federal guidance is updated. Checking current TSA information before you travel is always a good idea.
Think of airport security as the final step before your vacation begins. Arriving prepared, listening to the officers' instructions, and keeping your travel documents easily accessible helps everyone move through the checkpoint more efficiently and gets you to your gate with less stress.
One of the easiest ways to reduce stress at the airport is to prepare before you ever leave your house. A few minutes of planning can help you move through check-in, security screening, and boarding more efficiently while reducing the chance of delays caused by forgotten documents or prohibited items.
Make sure every adult traveler has an accepted government-issued photo ID, such as a REAL ID-compliant driver's license or passport. If you're traveling internationally, verify that your passport is valid for your destination.
Most airlines allow online or mobile check-in beginning 24 hours before departure. Completing check-in early can save time and lets you confirm your seat assignment and boarding pass before arriving at the airport.
Remove prohibited items, confirm your liquids follow TSA requirements, and pack medications, electronics, travel documents, chargers, and valuables where they can be reached easily.
Fully charge your phone, laptop, tablet, and power bank before leaving. Security officers may ask that electronic devices be powered on during screening.
Plan to arrive at the airport early enough to check bags, complete security screening, and reach your gate comfortably. Holidays and busy travel periods often require additional time.
Wear comfortable clothing, shoes that are easy to remove if requested, and avoid excessive jewelry or accessories that could slow the screening process.
Pack your carry-on the night before your trip instead of rushing the morning of departure. Taking a few extra minutes to organize your documents, electronics, medications, and liquids can make airport security much less stressful and help your vacation begin on a positive note.
Before you can pass through airport security, you'll need to verify your identity. Understanding which forms of identification are accepted—and making sure yours is available before you leave home—can help you avoid unnecessary delays at the checkpoint.
The Transportation Security Administration (TSA) requires every traveler age 18 and older to present an acceptable form of identification before entering the security checkpoint for domestic flights. Your identification is used to verify your identity and confirm your reservation before you proceed to screening.
Beginning May 7, 2025, travelers using a state-issued driver's license or identification card for domestic air travel generally must present a REAL ID-compliant credential unless another acceptable form of identification is used, such as a passport.
Children under the age of 18 generally do not need identification when traveling domestically with a companion, although airlines may have their own documentation requirements for minors.
Forgetting your identification doesn't always mean you cannot fly. TSA officers may ask additional questions and complete an identity verification process before allowing you to continue through security. Additional screening should be expected, and travel may be delayed.
Children younger than 18 generally are not required to present identification when traveling domestically with an adult. However, always verify your airline's policies before departure, particularly when children are traveling alone.
A well-organized carry-on bag can significantly speed up the airport security process. Packing with TSA screening in mind helps reduce delays, minimizes the chance of additional inspections, and makes it easier to access the items you'll need during your journey.
Before leaving for the airport, take a few minutes to review the contents of your carry-on bag. Remove anything that could delay the screening process, verify that your liquids comply with TSA requirements, and make sure important items such as medications, electronics, identification, and travel documents are easy to access.
Security officers may ask you to remove certain items for separate screening, particularly laptops and other large electronic devices. Packing these items near the top of your bag allows you to retrieve them quickly without unpacking everything at the checkpoint.
Remember that your carry-on should contain the items you cannot easily replace if your checked baggage is delayed. Important documents, prescription medications, valuables, electronics, and one change of clothing are all good candidates for your carry-on bag.
Keep laptops, tablets, cameras, and other large electronic devices near the top of your bag so they can be removed quickly if required during screening.
Place your quart-size liquids bag in an outside pocket or near the top of your carry-on for easy access. This helps avoid unnecessary delays at the checkpoint.
Never pack prescription medications in checked baggage. Keep them in your carry-on so they're available if your luggage is delayed or misplaced.
Jewelry, cash, passports, cameras, laptops, and other valuable items should always travel in your carry-on—not in checked baggage.
Double-check your bag before leaving home to make sure pocket knives, multi-tools, large scissors, and other prohibited items aren't accidentally packed.
Use packing cubes, pouches, or organizers to separate electronics, chargers, travel documents, toiletries, and snacks for quick access throughout your trip.
Before you zip your carry-on closed, imagine standing at the security checkpoint. If you can quickly reach your identification, boarding pass, electronics, liquids, and medications without unpacking your entire bag, you've packed it well.
One of the most common reasons travelers are delayed at airport security is carrying liquids that do not meet TSA requirements. Understanding the 3-1-1 rule before you pack can help you move through the checkpoint more quickly while avoiding the inconvenience of having items confiscated.
The Transportation Security Administration (TSA) limits the amount of liquids, gels, creams, lotions, pastes, and aerosols that may be carried through airport security in your carry-on luggage. These items are subject to what is commonly known as the 3-1-1 Liquids Rule.
The rule is simple to remember. Each liquid container must be no larger than 3.4 ounces (100 milliliters), all containers must fit inside one clear, quart-size plastic bag, and each traveler may bring one liquids bag through the security checkpoint.
If you have larger bottles of shampoo, sunscreen, lotion, or other toiletries, pack them in your checked baggage instead of your carry-on. Even if a container is only partially full, it is the size of the container that matters—not the amount of liquid inside.
Medically necessary liquids, prescription medications, infant formula, breast milk, baby food, and certain medically required gel packs are generally allowed in quantities larger than 3.4 ounces. Inform the TSA officer before screening if you are carrying these items.
No. The container itself cannot exceed 3.4 ounces, even if it contains only a small amount of liquid.
Yes. Most toothpaste, gels, creams, lotions, and roll-on or gel deodorants are considered liquids by TSA.
Frozen liquids may be permitted if they are completely frozen solid when presented for screening.
Yes. Once you've passed through security, beverages purchased inside the secure area may be brought onto your flight.
Keep your quart-size liquids bag near the top of your carry-on instead of burying it underneath your clothes. If a TSA officer asks to inspect it, you'll be able to remove it in seconds instead of unpacking your entire bag at the checkpoint.
Laptops, tablets, cameras, gaming systems, medical devices, and other electronics may require special handling at airport security. Packing them where they are easy to reach can help you move through screening more efficiently and protect your equipment from accidental damage.
At many standard security checkpoints, travelers may be instructed to remove laptops and other large electronic devices from their carry-on bags and place them in a separate screening bin. The device should be placed flat with nothing stacked above or below it so officers can obtain a clear image during screening.
Screening procedures can differ depending on the airport, the equipment being used, and the lane you enter. Some checkpoints use newer technology that allows electronics to remain inside the bag. Always listen to the officer working your lane instead of assuming the procedure will be the same as it was on a previous trip.
Keep expensive or fragile electronics in your carry-on whenever possible. Checked baggage is handled repeatedly during transportation, and important devices may be difficult or expensive to replace if a bag is delayed, damaged, or lost.
Keep laptops and large tablets in an easily accessible compartment. Remove them for separate screening when instructed and place each device flat in a bin without other belongings stacked on top.
Cameras, lenses, memory cards, and other valuable photography equipment are best kept in your carry-on. Pack them securely and be prepared to remove larger equipment if an officer requests separate screening.
Full-size gaming consoles and other large entertainment devices may need to be removed from the bag and screened separately. Protect controllers, cables, and accessories in organized cases or pouches.
Power banks, portable chargers, and spare lithium batteries must travel in your carry-on baggage rather than checked luggage. Protect exposed battery terminals from contact with metal objects.
CPAP machines, insulin pumps, hearing devices, and other medical equipment may require additional screening. Tell the officer about the device before screening begins and follow the manufacturer's handling instructions.
Use padded sleeves or protective cases, keep cords neatly organized, and avoid overpacking the bag. Do not place drinks or leaking toiletries next to valuable electronic equipment.
Pay attention to the instructions announced by the officer working your screening lane.
Take out laptops and other large electronics only when the officer instructs you to do so.
Place each device flat in the bin without bags, clothing, or other belongings covering it.
Move to the checkpoint's recomposure area before repacking so you do not leave a device, charger, or accessory behind.
Before leaving the security area, pause and count your devices. Phones, watches, tablets, laptops, headphones, chargers, and small accessories are easily forgotten when travelers are rushing to repack their bags.
Prescription medications, medically necessary liquids, mobility aids, and medical devices can travel through airport security, but some items may require additional screening. Organizing them before you arrive and telling the security officer about your medical needs can help make the process easier and more comfortable.
Keep essential medications and medical supplies in your carry-on bag rather than checked baggage. This helps ensure that they remain available if your checked luggage is delayed, misdirected, or unavailable during the flight.
Medically necessary liquids, gels, creams, and aerosols may be carried in quantities larger than the standard 3.4-ounce limit when they are reasonable for your trip. These items do not have to fit inside your regular quart-size liquids bag, but you should identify them to the security officer before screening begins.
Medical equipment may be inspected visually, screened with specialized equipment, tested for traces of prohibited substances, or examined by hand. Screening procedures may vary depending on the device, the airport, and the equipment being used at the checkpoint.
Never disconnect, remove, or adjust an implanted or attached medical device unless your healthcare provider and the device manufacturer have told you that it is safe to do so. Explain your needs to the officer before screening begins and request alternative screening when appropriate.
Pack enough medication for your trip, along with a reasonable extra supply in case of delays. Keep medicines together in an accessible section of your carry-on rather than burying them beneath clothing.
Medically necessary liquids may exceed the normal carry-on liquid limit. Remove them from your bag when requested and tell the officer that they are medically required before the inspection begins.
Needles, syringes, pens, and other injection supplies should be packed securely with the medication they are used to administer. Use protective caps or cases to prevent accidental injury.
CPAP machines, nebulizers, and related equipment may require separate screening. Pack removable components in a clear bag and carry any needed batteries, adapters, and power cords with the device.
Wheelchairs, walkers, canes, braces, prosthetic devices, and other mobility aids may be screened using procedures appropriate for the traveler and the equipment. Explain any limitations before screening starts.
Tell the officer if you have a pacemaker, insulin pump, continuous glucose monitor, neurostimulator, or another implanted or attached device before entering screening equipment.
These items may receive additional screening. Keep them together, remove them from your bag when instructed, and explain that they are being used for a medical purpose.
Keep medications, supplies, documentation, and medical accessories in an organized and easily accessible part of your carry-on.
Explain your medical condition, device, or supplies before screening. You may request that the conversation or inspection take place privately.
Present medically necessary liquids separately from your regular quart-size toiletries bag when instructed.
Medical supplies and equipment may require extra inspection, so arrive early enough to complete screening without feeling rushed.
Travelers with disabilities, medical conditions, or other special circumstances may contact TSA Cares before traveling to ask questions about screening or request assistance at the checkpoint. When available, a Passenger Support Specialist may help explain and coordinate the screening process.
Assistance should be requested in advance whenever possible. TSA Cares assistance applies to the security checkpoint and does not replace assistance that may need to be arranged separately with the airline.
Place all essential medications and medical supplies in one clearly organized carry-on pouch. When you reach the checkpoint, tell the officer about medically necessary liquids, attached devices, or equipment that requires special handling before screening begins.
Most solid foods can travel through airport security, but foods that are liquid, creamy, spreadable, or gel-like may be subject to the standard carry-on liquids rule. Packing food neatly and keeping it easy to reach can help prevent delays at the checkpoint.
Solid foods are generally permitted in both carry-on and checked baggage. Sandwiches, baked goods, fruit, vegetables, chips, crackers, candy, and other solid snacks can usually pass through the security checkpoint. However, every item is still subject to screening and additional inspection.
Foods that are liquids, gels, creams, pastes, or spreadable products are generally treated like other carry-on liquids. Containers larger than 3.4 ounces should normally be placed in checked baggage unless the food qualifies for a medical, infant-feeding, or other permitted exception.
Security officers may ask you to remove food from your carry-on and place it in a separate screening bin. Food can sometimes obstruct the X-ray image of other belongings, so packing snacks together in a clear bag or container can make them easier to inspect.
Rules at your destination may be different from security-screening rules. International destinations, Hawaii, Puerto Rico, and certain other locations may restrict fresh fruit, vegetables, meat, plants, or agricultural products. Check destination requirements before packing perishable food.
Most solid foods may be packed in your carry-on, although officers may ask you to remove them for separate screening.
These foods generally must be in containers of 3.4 ounces or less and fit inside your quart-size liquids bag.
Some foods may appear solid but contain enough liquid or gel to require special handling or placement in checked baggage.
Medically necessary cooling supplies and items used for infant feeding may qualify for separate exceptions. Tell the security officer about these items before screening begins.
Formula, breast milk, toddler drinks, baby food, and related cooling supplies may be permitted in reasonable quantities greater than 3.4 ounces. Keep these items accessible and tell the officer about them before screening.
Liquid nutrition, dietary products, and medically necessary foods may qualify for exceptions to the standard liquids rule. Separate them from other belongings and explain their medical purpose to the officer.
Reusable water bottles may pass through security when they are empty.
Keep the empty bottle in your carry-on or place it in a bin if directed.
Use an airport filling station or purchase a beverage after the checkpoint.
Place snacks together in a clear bag or organized container.
Keep food near the top of your carry-on for easy removal.
Use leak-resistant containers for sauces and moist foods.
Follow the 3-1-1 rule for liquid and spreadable foods.
Keep medically necessary and infant foods separate.
Check destination restrictions on agricultural products.
A food item may be allowed through airport security but still be restricted at your destination. International travelers should declare food and agricultural products when required and review the entry rules for every country on their itinerary.
Pack one small snack pouch for each traveler and place all food near the top of the carry-on. This keeps snacks organized during the flight and makes it easy to remove them if the security officer requests separate screening.
Airport security can feel unfamiliar or overwhelming to children, but a little preparation can make the checkpoint easier for the entire family. Organize children’s supplies before arriving, explain what will happen, and allow extra time for strollers, car seats, food, and other family travel items.
Children must pass through airport security with the adults accompanying them, but screening procedures may be adjusted for younger travelers. Children age 12 and younger may generally leave their shoes, light jackets, and headwear on during screening, although officers may provide different instructions when additional screening is necessary.
Before entering the checkpoint, talk with children about what they will see. Explain that bags, stuffed animals, blankets, electronics, and other belongings may travel through the X-ray machine while the family walks through a separate screening area.
Avoid joking about security, weapons, or prohibited items. Encourage children to listen carefully, remain near the accompanying adult, and wait until the family reaches the recomposure area before repacking bags or returning toys.
Screening procedures and equipment may vary by airport. Follow the directions provided by the officers working your lane, even when the process differs from what your family experienced on a previous trip.
Explain the security process using simple, reassuring language. Let children know that their backpack, coat, blanket, and favorite toy may need to go through the X-ray machine briefly.
Families may need additional time to remove children from strollers, organize feeding supplies, fold equipment, and collect belongings after screening. Avoid planning a rushed arrival.
Older children can carry a lightweight backpack containing approved snacks, entertainment, headphones, and a sweater. Check the bag carefully for prohibited items before leaving home.
Keep tablets, gaming devices, headphones, and charging cables together. Larger electronics may need to be removed from the bag when instructed by the officer.
Solid snacks are generally easier to screen than liquid or spreadable foods. Pack them in clear, resealable bags and keep them near the top of the carry-on for easy inspection.
Assign one adult to supervise the children while another manages bags and equipment when possible. Count family members and belongings before leaving the checkpoint area.
Formula, breast milk, toddler drinks, baby food, and related supplies may be carried in reasonable quantities greater than 3.4 ounces. These items do not have to fit inside the family’s regular quart-size liquids bag, but they may receive additional screening.
Pack bottles and containers securely and tell the officer about them before screening begins.
Drinks intended for infants and toddlers may qualify for the family feeding exception when carried in reasonable quantities.
Jars, pouches, purees, and other baby foods may be presented separately for screening.
Ice packs, freezer packs, gel packs, and other cooling accessories used for feeding supplies may also be screened.
Remove feeding items from the carry-on when instructed and tell the officer that they are for an infant or child. Additional screening may include opening containers or testing the outside of packages.
Organize bottles, food, diapers, wipes, medication, and comfort items in separate pouches. Be prepared to remove the child from the stroller or carrier.
Tell children where to stand, when to walk forward, and where their belongings will go. Reassure them that their items will be returned after screening.
Encourage older children to manage their own backpack, electronics, and shoes when required while still following the family’s checkpoint plan.
Put identification, boarding passes, food, liquids, and electronics where adults can reach them quickly.
Decide who will manage the children and who will handle bags, strollers, and screening bins.
When permitted, one adult can go ahead so someone is ready to receive children and belongings on the other side.
Move to the designated recomposure area before reorganizing bags, refolding the stroller, or returning toys to children.
Give each child one simple checkpoint responsibility, such as carrying a small backpack or holding a jacket. Children often feel more comfortable when they know exactly what to do, while adults can focus on identification, feeding supplies, strollers, and other family equipment.
Travelers with disabilities, medical conditions, mobility limitations, sensory needs, and other special circumstances can request assistance during airport security screening. Planning ahead and explaining your needs before screening begins can help make the checkpoint more comfortable, respectful, and efficient.
Every traveler must complete airport security screening, but the process can be adapted to accommodate disabilities, medical conditions, mobility devices, communication needs, and other individual circumstances. Tell the security officer about any assistance or accommodation you need before screening begins.
You do not need to provide detailed personal medical information in the public checkpoint line. You may communicate verbally, provide a notification card or written note, or request to speak with an officer privately.
Travelers may request a private screening and may have a companion present when permitted. You may also ask to speak with a supervisor or Passenger Support Specialist if you have concerns or need additional assistance.
Airport security assistance is separate from airline assistance. Services such as wheelchair transportation, boarding assistance, seat accommodations, or help navigating the terminal should generally be arranged directly with the airline.
Tell the officer if you cannot stand, walk independently, raise your arms, remove your shoes, or maintain a particular position. Screening procedures may be adjusted to accommodate your physical abilities.
Wheelchairs, scooters, walkers, canes, crutches, and other mobility aids must be screened. Explain whether you can transfer, walk briefly, or remain with your equipment during the process.
Inform the officer about prosthetic limbs, braces, ostomy supplies, implanted devices, insulin pumps, monitors, or other equipment before entering the screening area.
Tell the officer if you are deaf, hard of hearing, nonverbal, or need instructions presented in another way. Written communication, visual instructions, or assistance from a companion may be requested.
Ask the officer to explain each step before it occurs and to provide verbal guidance through the checkpoint. Canes and other mobility aids will also need to be screened.
Travelers with autism, dementia, anxiety, developmental disabilities, or sensory sensitivities may request additional time, simplified instructions, reduced stimulation when available, or assistance from a support person.
Do not agree to transfer, stand, walk, or remove equipment if doing so is unsafe. Clearly explain your limitations and request an alternative screening procedure.
Let the officer know that you are traveling with a service animal before screening begins.
Maintain control using the animal’s normal leash, harness, or other equipment unless instructed otherwise.
The traveler, service animal, harness, leash, food, and supplies may each require screening or inspection.
If equipment must be removed for screening, follow the officer’s instructions for safely reattaching it afterward.
Briefly explain your disability, medical condition, equipment, or assistance needs before screening starts.
Present a written card or note describing accommodations or medical equipment you would prefer not to discuss publicly.
Request a private screening area when discussing or inspecting medical devices, prosthetics, supplies, or sensitive areas.
You may ask for a private screening if you are uncomfortable completing a particular procedure in the public checkpoint area. You may also ask whether a companion can remain with you and request that the screening be conducted by an officer of the appropriate gender.
Explain your needs before the screening begins whenever possible. Ask the officer to describe each step before touching you, your clothing, medical equipment, prosthetic device, or mobility aid.
TSA Cares provides information and assistance for travelers with disabilities, medical conditions, and other special circumstances. Contacting the program before travel can help you understand what to expect and request support at the security checkpoint.
Learn how a disability, medical device, mobility aid, or special circumstance may be handled.
Submit an assistance request before departure whenever possible so support can be coordinated.
A specially trained officer may be available to help explain and coordinate the screening process.
Arrange wheelchair service, boarding help, seating needs, and terminal assistance directly with your airline.
Review screening guidance, organize equipment, and request assistance in advance when needed.
Tell the officer about disabilities, limitations, devices, or accommodations before screening begins.
Request an explanation before any procedure that is unfamiliar, uncomfortable, or potentially unsafe.
Ask for private screening, a supervisor, or a Passenger Support Specialist when additional help is needed.
Do not wait until screening is underway to explain an accommodation or limitation. Tell the officer what you need at the beginning of the process, and ask for a Passenger Support Specialist, supervisor, or private screening whenever additional assistance would make the experience safer or more comfortable.
TSA PreCheck can provide a more convenient airport security experience, but membership alone does not guarantee access on every trip. Enter your traveler information correctly, check your boarding pass before arriving at the checkpoint, and always follow the instructions given in your lane.
TSA PreCheck is an expedited screening program for eligible travelers departing from participating United States airports. Approved members receive a Known Traveler Number, commonly called a KTN, that should be added to participating airline reservations.
When TSA PreCheck is granted for a particular flight, the TSA PreCheck indicator appears on the traveler’s boarding pass. Check for this indicator before entering the expedited lane because carrying a membership card or knowing your KTN does not replace the boarding-pass designation.
At a TSA PreCheck checkpoint, travelers can generally leave compliant liquids and laptops inside their carry-on bags and keep belts and light jackets on. Screening instructions may still vary based on the checkpoint, equipment, security needs, or individual circumstances.
TSA PreCheck does not change the rules governing prohibited items, medically necessary liquids, lithium batteries, or oversized carry-on liquids. Your belongings must still comply with all applicable TSA and airline requirements.
The name on your airline reservation should match the name associated with your TSA PreCheck enrollment. Differences involving spelling, hyphens, suffixes, or name changes may prevent the benefit from appearing.
Enter your Known Traveler Number in the correct traveler-information field when making the reservation. Do not place it in a frequent-flyer number, confirmation number, or redress-number field.
Do not assume your number was saved correctly. Review the passenger information on each new reservation, especially when booking through a travel agency, cruise line, tour operator, or third-party website.
Check your boarding pass as soon as check-in opens. Discovering a missing TSA PreCheck indicator early gives you more time to review the reservation or contact the airline before reaching the airport.
Keep electronics and your liquids bag accessible even when you expect to use TSA PreCheck. You may be directed to a standard lane or asked to remove items for additional screening.
Expedited screening does not eliminate airline check-in deadlines, checked-bag cutoffs, traffic, parking delays, or unexpected checkpoint congestion. Keep a comfortable margin in your airport arrival plan.
In a dedicated TSA PreCheck lane, eligible travelers are generally permitted to keep the following items in place unless an officer gives different instructions.
Laptops and other qualifying electronics may generally remain inside properly packed carry-on baggage.
The compliant 3-1-1 liquids bag may generally remain inside the traveler’s carry-on during screening.
Travelers may generally keep light jackets or outerwear on while completing expedited screening.
Belts may generally remain on unless they trigger an alarm or an officer requests that they be removed.
Expedited screening benefits are not guaranteed for every passenger, airport, lane, or trip. Always follow the officer’s instructions, even when they differ from the usual TSA PreCheck process.
Complete airline check-in and open the boarding pass for the correct traveler and flight segment.
Look for the TSA PreCheck designation printed or displayed on the boarding pass.
Check each family member’s boarding pass rather than assuming that everyone received the same screening designation.
Contact the airline or visit its service desk when traveler information appears incorrect or the indicator is unexpectedly missing.
Confirm that the reservation name matches the TSA PreCheck enrollment record, including spelling and identifying details.
Make sure the Known Traveler Number is complete and entered in the correct field for the correct passenger.
Verify that the operating airline participates in TSA PreCheck and that the correct carrier issued the boarding pass.
After the airline corrects traveler information, check in again or refresh the mobile boarding pass to see whether the indicator appears.
TSA uses unpredictable security measures, and expedited screening is not guaranteed on every itinerary. An eligible traveler may still be directed to standard or additional screening.
Children age 12 and younger may generally accompany an enrolled parent or guardian through the TSA PreCheck lane when traveling together.
Teenagers traveling on the same reservation as an eligible parent or guardian may use the expedited lane when the TSA PreCheck indicator appears on their boarding pass.
Travelers age 18 and older must qualify for TSA PreCheck independently and have the appropriate indicator on their own boarding pass.
Review every family member’s boarding pass before entering the line. Family members without the required indicator or eligibility may be directed to standard screening.
Check for the TSA PreCheck indicator as soon as your boarding pass becomes available—not when you reach the checkpoint. If it is missing, confirm that your name and Known Traveler Number were entered correctly and contact the airline while there is still time to correct the reservation.
Airport security procedures are not identical around the world. Rules for liquids, electronics, medications, identification, connecting flights, and prohibited items can vary by country, airport, and terminal. Preparing for the most restrictive checkpoint on your itinerary can help prevent delays, repacking, or surrendered belongings.
TSA rules apply when you depart from an airport in the United States, but another country's aviation security authority controls screening when you begin a flight abroad. Even when the rules appear similar, the way items must be presented and screened may be different.
Some airports use newer screening equipment that allows liquids or electronics to remain inside carry-on bags. Other airports may require travelers to remove laptops, tablets, liquids, belts, jackets, shoes, or additional items before screening.
Do not assume that a procedure you experienced at one airport will apply at the next. Follow the instructions provided by the officers working your specific lane, even when those instructions differ from signs, previous trips, or procedures used at your home airport.
Travelers with connecting flights may also need to pass through security again. Whether rescreening is required can depend on the countries involved, the airport layout, immigration and customs procedures, and whether the traveler remains inside a recognized secure transit area.
Many countries limit carry-on liquids, aerosols, gels, creams, and pastes to containers no larger than 100 milliliters. The permitted bag size, closure type, and checkpoint presentation requirements may differ.
Some checkpoints require laptops, tablets, cameras, and large electronics to be removed and placed separately. Newer screening lanes may allow them to remain inside the carry-on.
International travelers should keep their passport, boarding pass, visa documents, and any required entry or transit documentation accessible throughout the airport.
Medication exceptions and documentation requirements vary by country. Original packaging, a prescription copy, or a healthcare provider's letter may be helpful or required for certain medicines.
Passengers may need to clear immigration, collect checked baggage, complete customs formalities, recheck bags, and pass through security again before continuing to the next flight.
An item permitted by TSA may be restricted at a foreign airport. Rules for scissors, tools, batteries, powders, foods, sporting equipment, and other articles should be checked before every departure.
The United States, European Union, United Kingdom, Canada, and many other destinations commonly restrict carry-on liquids to containers holding no more than 100 milliliters or 3.4 ounces. However, the required bag and the way it must be presented can vary.
Pack according to the standard 100 mL rule unless every airport on your itinerary clearly confirms a different allowance. A larger container that is accepted at one airport may be rejected at a later connecting airport.
Be ready to remove laptops, tablets, cameras, gaming systems, and other large electronics unless the officer tells you they may remain packed.
Some airports require removal of outerwear, belts, boots, or shoes. Others may permit certain items to remain on depending on equipment and local procedures.
Liquids, food, powders, books, cameras, and other dense objects may need to be removed so officers can obtain a clearer image of the bag.
Look for signs marked Connections, Transfers, Flight Connections, or Transit after leaving the aircraft.
Depending on the airport, you may need to clear passport control, immigration, or customs before continuing.
Some countries require arriving passengers to retrieve checked luggage and return it to the airline before the next flight.
Prepare to follow the local carry-on and screening rules before entering the departure area for the connecting flight.
International connections can require significantly more time than domestic connections. Allow extra time for passport control, customs, bag handling, terminal changes, and repeat security screening.
Ask the retailer how your purchase will be handled at every connecting airport. When uncertain, consider placing the item in checked baggage after customs if you can safely access and recheck your suitcase.
A medication may be permitted through airport security but restricted by the destination country's drug or customs laws. This is especially important for controlled substances, injectable medications, strong pain relievers, sedatives, stimulants, and products containing ingredients that are regulated differently abroad.
Keep medicine in original labeled packaging when possible. Carry a copy of the prescription and consider bringing a healthcare provider's letter that lists the medication, dosage, medical purpose, and required supplies.
Review the security website for every departure airport.
Check carry-on restrictions for every country on the itinerary.
Pack liquids in containers no larger than 100 mL.
Keep electronics and the liquids bag easy to remove.
Carry medication documentation when appropriate.
Check whether connecting passengers must clear security again.
Leave duty-free liquids sealed with the receipt attached.
Allow extra time for unfamiliar checkpoint procedures.
Airport security authorities decide what may pass through the checkpoint. Airlines separately control carry-on size, weight, quantity, battery limits, and onboard acceptance. An item can be permitted by security but still be refused by the airline.
Pack for the strictest checkpoint on your itinerary rather than the most convenient one. Keep liquids within the standard 100 mL limit, make electronics easy to remove, and allow extra connection time in case you must complete immigration, customs, baggage recheck, and security again.
Many airport security delays are caused by simple packing mistakes, forgotten items, or travelers waiting until the last moment to prepare. Knowing the most common problems can help you avoid unnecessary screening, surrendered belongings, and a stressful start to your trip.
Airport security procedures are usually easier when travelers arrive organized and ready to follow the instructions provided at the checkpoint. Problems often begin when prohibited items remain inside a carry-on, oversized liquids are packed incorrectly, or important belongings are difficult to reach.
A mistake does not always mean a traveler has intentionally broken a rule. Pocketknives, tools, water bottles, toiletries, and other everyday items are frequently left in bags by accident. Reviewing every pocket and compartment before leaving home can prevent many of these problems.
Travelers should also avoid assuming that every checkpoint operates in exactly the same way. Screening instructions may differ by airport, lane, equipment, and current security needs. Listen to the officers working your lane rather than relying only on what happened during a previous trip.
Pocketknives, multi-tools, large scissors, certain sporting items, and other restricted objects are often forgotten in backpacks, purses, and laptop bags used for everyday activities.
Full-size toiletries and large containers of liquid, gel, cream, paste, or spreadable food may not be permitted in a carry-on unless a specific exception applies.
Reusable bottles can generally pass through security when empty. Travelers frequently forget to pour out the remaining water before reaching the screening belt.
Portable chargers, power banks, and spare lithium batteries should be packed in carry-on baggage and protected from damage or contact with metal objects.
Searching through a tightly packed bag for a driver’s license, passport, or boarding pass slows the line and increases the chance that an important document will be misplaced.
Security lines can be unpredictable. Arriving too close to departure leaves little time for bag inspection, additional screening, terminal changes, or other unexpected delays.
Bags used for work, school, outdoor activities, or everyday errands may contain items that are not permitted through airport security. Empty the bag completely before using it for travel.
A backpack that is safe for school, hiking, fishing, or work may not be ready for air travel. Emptying and repacking it from the beginning is safer than assuming every compartment is clear.
Have your identification and boarding pass ready before reaching the document-checking officer.
Different lanes may use different equipment. Listen before removing shoes, electronics, liquids, or other items.
Avoid stacking devices beneath bags or coats when separate placement is requested.
Collect your belongings and move to the recomposure area before reorganizing your carry-on.
Large jewelry, heavy belt buckles, metal accessories, and overloaded pockets may trigger additional screening.
Complicated boots or shoes may take extra time to remove and replace when removal is required.
Phones, wallets, coins, keys, tissues, and other items should be removed from pockets when instructed.
Heavy jackets, oversized clothing, and layered garments may require removal or additional inspection.
Tell the security officer about medically necessary liquids, needles, cooling supplies, mobility aids, prosthetics, implanted devices, or other equipment before the screening process begins.
Keep medical items organized and accessible. Packing them throughout several bags can make inspection more difficult and increase the chance that an essential item is misplaced.
Listen to the officer’s explanation and avoid arguing or making jokes about the item.
Depending on the item and airport, you may be able to place it in checked baggage, return it to a vehicle, or surrender it.
Leaving the checkpoint to handle the item may require you to start security screening again.
When departure time is close, surrendering a low-value item may be safer than risking a missed flight.
Comments or jokes involving weapons, explosives, threats, or dangerous items may be taken seriously and can result in delays, questioning, removal from the checkpoint, or involvement by law enforcement.
Use a carry-on bag that you have completely emptied and repacked for the trip. This is the simplest way to avoid discovering an old pocketknife, oversized toiletry, forgotten drink, or other restricted item at the security checkpoint.
Airport security rules can feel complicated, especially when procedures vary by airport or checkpoint. These answers address many of the questions travelers commonly have before passing through security.
Rules may change, and the officer working your lane may provide instructions that differ from what you experienced on a previous trip. Review current requirements before departure and always follow the directions given at the checkpoint.
Travelers age 18 and older generally need an acceptable government-issued photo ID for domestic air travel. A REAL ID-compliant driver's license, passport, passport card, military ID, permanent resident card, or eligible trusted traveler card may be accepted.
International travelers should keep their passport and any required visa or transit documents readily accessible.
Children younger than 18 generally do not need to present identification when traveling domestically with an adult. However, airlines may have separate documentation requirements for minors, especially when a child travels alone or internationally.
You may still be permitted to travel after completing an identity verification process. Security officers may ask additional questions, review other identifying information, and require additional screening.
Arrive as early as possible because the process may take additional time, and approval is not guaranteed.
Most carry-on liquids, gels, creams, pastes, and aerosols must be packed in containers no larger than 3.4 ounces or 100 milliliters. The containers must fit inside one clear, quart-size, resealable bag, with one liquids bag permitted per traveler.
Generally, no. The size printed on the container determines whether it complies with the carry-on liquids rule. An 8-ounce bottle is usually not permitted through standard screening even when it contains only a small amount of liquid.
Medically necessary liquids, gels, creams, and aerosols may generally be carried in reasonable quantities greater than 3.4 ounces. Tell the security officer about these items before screening and keep them separate from your regular toiletries.
Medical items may receive additional inspection or testing.
Needles, syringes, injection pens, and related supplies may generally be carried when used with required medication. Pack them securely with the medication, protect sharp points, and tell the officer about them before screening begins.
Most solid foods are permitted in carry-on baggage. Sandwiches, baked goods, chips, crackers, fruit, and other solid snacks are commonly allowed, although officers may ask you to remove food for separate screening.
Liquid, creamy, spreadable, or gel-like foods generally must follow the carry-on liquids rule unless an exception applies.
Yes. Reusable water bottles may generally pass through security when they are completely empty. Refill the bottle at a water station after entering the secure area of the airport.
At many standard checkpoints, laptops and other large electronics must be removed and placed flat in a screening bin. Some airports use newer equipment that allows electronics to remain inside the bag.
Listen to the instructions given in your specific lane before removing anything.
Power banks, portable chargers, and spare lithium batteries should be packed in carry-on baggage rather than checked luggage. Protect exposed terminals from contact with keys, coins, or other metal objects.
Airlines may impose additional size or watt-hour restrictions.
Standard screening may require travelers to remove shoes, belts, and jackets. Travelers using an eligible TSA PreCheck lane may generally keep certain items on unless instructed otherwise.
Procedures may vary by airport and screening equipment.
Children age 12 and younger may generally keep their shoes, light jackets, and headwear on during screening. Officers may provide different instructions if additional screening is required.
Children must generally be removed from strollers and carriers before screening. Strollers, car seats, booster seats, carriers, and related equipment must also be screened.
Equipment that does not fit through the X-ray machine may receive a separate physical inspection.
Formula, breast milk, toddler drinks, baby food, and related cooling supplies may generally be carried in reasonable quantities greater than the normal liquids limit. Tell the officer about them before screening and keep them accessible for inspection.
Tell the officer whether you can stand, walk, transfer, or remain with your mobility device. Wheelchairs, scooters, walkers, canes, crutches, and similar devices must be screened, but procedures can be adapted to the traveler's abilities and safety needs.
Yes. Travelers may request private screening when discussing or inspecting medical devices, prosthetics, supplies, clothing, or sensitive areas. You may also ask whether a companion can be present and request an explanation before each screening step.
TSA Cares provides information and screening assistance for travelers with disabilities, medical conditions, and other special circumstances. Travelers may contact the program before departure to ask questions or request support at the checkpoint.
Airline services such as wheelchair transportation, boarding help, and seating assistance should be arranged separately with the airline.
No. Expedited screening is not guaranteed for every traveler, flight, or airport. The TSA PreCheck indicator must appear on the current boarding pass, and travelers may still be directed to standard or additional screening.
Common causes include an incorrectly entered Known Traveler Number, a name mismatch, incomplete reservation information, or an itinerary involving a nonparticipating airline.
Review your reservation and contact the airline before entering the security line when the indicator is unexpectedly missing.
No. International screening procedures may differ for liquids, electronics, clothing, medications, food, and prohibited items. Review the requirements for every departure and connecting airport on your itinerary.
Packing according to the strictest airport on the itinerary can help prevent problems during a connection.
Possibly. Repeat screening depends on the airport layout, countries involved, customs and immigration procedures, terminal changes, and whether passengers remain inside a secure transit area.
Allow extra connection time when immigration, baggage collection, customs, bag recheck, and security may all be required.
Depending on the item and the airport, you may be able to place it in checked baggage, return it to a vehicle, give it to someone who is not traveling, or surrender it.
Leaving the checkpoint may require you to complete screening again, so consider your departure time before choosing an option.
Arrival needs vary by airport, airline, destination, season, and whether you are checking baggage. Follow your airline's recommendation and allow extra time during holidays, peak travel periods, international departures, or when traveling with children, medical equipment, or special assistance needs.
Search the current security rules for the specific item you plan to carry.
Airlines may impose additional requirements for batteries, equipment, baggage size, and onboard use.
Customs, agricultural, medication, and import rules may differ from airport security requirements.
The officer working the checkpoint makes the final decision about whether an item may proceed.
Passing an item through security does not guarantee that the airline will accept it onboard. Airlines may have separate limits for baggage size, weight, quantity, batteries, medical equipment, sporting items, and other belongings.
When you are uncertain about an item, research it before packing rather than waiting until you reach the checkpoint. A quick review at home can prevent additional screening, surrendered belongings, and unnecessary stress on departure day.
Airport security rules, identification requirements, prohibited-item guidance, and international travel procedures can change. These official government resources can help you verify current information before packing your bags or leaving for the airport.
Review the rules for your departure airport, airline, destination, and connecting airports. Security approval does not replace airline baggage rules, customs requirements, medication restrictions, or destination-entry regulations.
Review general checkpoint procedures, screening information, passenger guidance, and current airport-security requirements.
Visit TSA Security ScreeningSearch for specific foods, liquids, electronics, tools, sporting items, medical supplies, and other belongings before placing them in your luggage.
Search What Can I Bring?Check which driver's licenses, passports, trusted traveler cards, military IDs, and other documents may be accepted at a TSA checkpoint.
Review Accepted IdentificationFind information and request checkpoint assistance for travelers with disabilities, medical conditions, mobility limitations, or other special circumstances.
Visit TSA CaresLearn about eligibility, enrollment, Known Traveler Numbers, participating airports and airlines, renewal, and expedited-screening benefits.
Explore TSA PreCheckReview REAL ID requirements, frequently asked questions, acceptable alternatives, and information about using state-issued identification for domestic air travel.
Review REAL ID GuidanceCheck federal aviation guidance for lithium batteries, power banks, electronic devices, hazardous materials, aerosols, and other restricted items in passenger baggage.
Visit FAA PackSafeReview destination information, entry requirements, travel advisories, passport guidance, local laws, medication considerations, and international travel preparation.
Visit International TravelLearn about customs declarations, entry procedures, trusted traveler programs, international arrivals, and returning to the United States.
Visit CBP TravelConfirm that the website belongs to an official government agency.
Check when the information was last reviewed or updated.
Review both airport-security and airline baggage requirements.
Verify rules for every departure and connecting airport.
Check destination rules for medications, food, and restricted items.
Allow the checkpoint officer to make the final screening decision.
Government guidance, airport procedures, screening technology, airline requirements, and international entry rules can change. Review current information again shortly before departure rather than relying only on guidance saved when the trip was first booked.
Save the official TSA, airline, and destination-information pages in your phone before leaving home. Having the correct resources readily available can make it easier to resolve questions about identification, baggage, medications, batteries, or connecting-airport procedures.
Airport security rules, identification requirements, prohibited-item guidance, and international travel procedures can change. These official government resources can help you verify current information before packing your bags or leaving for the airport.
Review the rules for your departure airport, airline, destination, and connecting airports. Security approval does not replace airline baggage rules, customs requirements, medication restrictions, or destination-entry regulations.
Review general checkpoint procedures, screening information, passenger guidance, and current airport-security requirements.
Visit TSA Security ScreeningSearch for specific foods, liquids, electronics, tools, sporting items, medical supplies, and other belongings before placing them in your luggage.
Search What Can I Bring?Check which driver's licenses, passports, trusted traveler cards, military IDs, and other documents may be accepted at a TSA checkpoint.
Review Accepted IdentificationFind information and request checkpoint assistance for travelers with disabilities, medical conditions, mobility limitations, or other special circumstances.
Visit TSA CaresLearn about eligibility, enrollment, Known Traveler Numbers, participating airports and airlines, renewal, and expedited-screening benefits.
Explore TSA PreCheckReview REAL ID requirements, frequently asked questions, acceptable alternatives, and information about using state-issued identification for domestic air travel.
Review REAL ID GuidanceCheck federal aviation guidance for lithium batteries, power banks, electronic devices, hazardous materials, aerosols, and other restricted items in passenger baggage.
Visit FAA PackSafeReview destination information, entry requirements, travel advisories, passport guidance, local laws, medication considerations, and international travel preparation.
Visit International TravelLearn about customs declarations, entry procedures, trusted traveler programs, international arrivals, and returning to the United States.
Visit CBP TravelConfirm that the website belongs to an official government agency.
Check when the information was last reviewed or updated.
Review both airport-security and airline baggage requirements.
Verify rules for every departure and connecting airport.
Check destination rules for medications, food, and restricted items.
Allow the checkpoint officer to make the final screening decision.
Government guidance, airport procedures, screening technology, airline requirements, and international entry rules can change. Review current information again shortly before departure rather than relying only on guidance saved when the trip was first booked.
Save the official TSA, airline, and destination-information pages in your phone before leaving home. Having the correct resources readily available can make it easier to resolve questions about identification, baggage, medications, batteries, or connecting-airport procedures.
Airport security is much less stressful when your family is organized before entering the checkpoint. Keep identification and boarding passes easy to reach, place liquids and large electronics near the top of your carry-on, and make sure water bottles are empty before getting in line.
When traveling with children, assign one adult to manage the children while another handles bags, strollers, electronics, and screening bins whenever possible. Tell security officers about medications, medical equipment, feeding supplies, mobility needs, or other special circumstances before screening begins.
Most importantly, listen to the instructions provided in your specific screening lane. Procedures can vary by airport and equipment, so being prepared, patient, and flexible is often the fastest way to get everyone through security and on the way to the gate.
A few minutes of preparation at home can save valuable time at the airport and help your family begin the trip feeling calm, confident, and ready to travel.