You need a government-issued ID to fly domestically, but the rules are more flexible than most people think

The Transportation Security Administration (TSA) requires a valid government-issued photo ID to board a domestic flight in the United States. A driver's license, passport, or state ID card will work. However, if you do not have one of these documents, you are not automatically turned away — TSA has a process for passengers without ID, though it takes extra time at the airport.

The specific ID requirements differ slightly depending on whether you are flying domestically or internationally. Domestic flights have more options and a backup procedure. International flights are stricter and require a passport or passport card. Understanding which documents work for your trip prevents delays and confusion at security.

Key Takeaways

  • A driver's license, state ID, or passport satisfies TSA requirements for domestic flights.
  • If you arrive at the airport without ID, TSA can verify your identity through additional screening, but this process adds 15 to 30 minutes to your security wait.
  • International flights require a valid passport or passport card — a driver's license will not work.
  • Military ID, tribal ID, and certain other government documents are also accepted for domestic travel.
  • Expired IDs are generally not accepted, though TSA may make exceptions during specific circumstances.

Acceptable IDs for domestic flights

TSA accepts a wide range of government-issued photo IDs for domestic travel. A standard driver's license from any U.S. state or territory works. A state-issued ID card (the non-driver version) is equally valid. A U.S. passport or passport card also satisfies the requirement. Military ID, including dependent ID cards, is accepted. Tribal identification issued by a federally recognized tribe counts as well.

Less common documents that work include a commercial driver's license (CDL), a permanent resident card (green card), and a U.S. Merchant Mariner credential. If you hold a government employee ID or a federal agency ID, those are accepted too. The key requirement is that the ID must be current and include your photograph, your name, and an expiration date.

What happens if you show up without ID

Arriving at the airport without any ID does not mean you cannot fly. TSA has a procedure called the Passenger Identity Verification Process for travelers without documents. An officer will ask you questions to verify your identity — typically your name, date of birth, address, and other personal details. They may also ask about your travel itinerary or request additional information.

This process takes longer than normal security screening. Plan for an extra 15 to 30 minutes, though wait times vary depending on how busy the airport is and how quickly TSA can verify your information. You will still go through the standard security screening after identity verification is complete. TSA recommends bringing a secondary form of identification if possible — even if it is not a government-issued photo ID — because it can speed up the process. A utility bill, bank statement, or credit card with your name on it can help.

Rules for international travel

International flights have stricter requirements. A U.S. passport is the standard document needed to leave the country and return. A passport card (the wallet-sized version) also works for flights to Canada, Mexico, Bermuda, and the Caribbean. A Real ID-compliant driver's license will not work for international flights, even though it works domestically.

If you are a permanent resident (green card holder), your green card can be used for flights to certain countries, but a passport is still the safest choice. Children under 16 do not need their own passport for flights within the United States, but they do need one for international travel. Check with your airline before booking, because some carriers have their own additional requirements beyond what TSA mandates.

Real ID and what it means for domestic flights

A Real ID-compliant driver's license or state ID is a standard driver's license or ID card that meets federal security standards. It has a star or other marking in the upper right corner. Real ID compliance became a requirement for domestic flights in 2025, though TSA has extended important date in the past.

If your driver's license does not have the Real ID marking, you can still fly domestically — you just need to bring an additional form of ID along with your non-compliant license. A passport works as that second document. You can also obtain a Real ID-compliant license by visiting your state's DMV with proof of citizenship, proof of residency, and a Social Security number. The process takes a few weeks, so plan ahead if you fly regularly.

Expired IDs and special circumstances

TSA generally does not accept expired IDs. An expired driver's license or state ID will not work at security, even if it is only expired by a few months. However, TSA has made exceptions during specific periods — for example, during the COVID-19 pandemic, TSA temporarily accepted IDs that had expired within a certain window. These exceptions are announced publicly and are not permanent.

If your ID is expired, your best option is to bring it along with a secondary form of identification and be prepared for the identity verification process. Alternatively, you can renew your ID before your flight. Many states now offer expedited renewal options online or at the DMV, though processing times vary. Check your state's DMV website for current renewal timelines and fees.

Traveling with children

Children under 18 do not need their own ID to fly domestically. They can travel with a parent or guardian who has a valid ID. TSA does not require children to present identification at security. However, the adult traveling with them must have acceptable ID.

For international flights, children need their own passport, even infants. A birth certificate alone is not sufficient for international travel. If you are traveling with a child who is not your own, bring documentation showing you have permission to travel with them — this is not a TSA requirement, but it can prevent problems at the airport or border.

Frequently Asked Questions

Can I use an expired passport to fly?

No, TSA does not accept expired passports for any flights, domestic or international. An expired passport will not work at security screening. You will need to renew your passport before flying internationally. For domestic flights, you can use an expired passport along with another form of ID and go through the identity verification process, though this adds time.

What if I lost my ID the day before my flight?

Contact your state's DMV when ready to see if they offer same-day or emergency replacement. Many states do not, but some have expedited options. If you cannot get a replacement in time, bring any secondary identification you have and be prepared for TSA's identity verification process at the airport. Arrive extra early to allow time for the additional screening.

Does a school ID or work ID count?

A school ID or private employer ID does not meet TSA requirements, even if it has your photo and name. Only government-issued IDs are accepted. However, you can bring a school or work ID as a secondary form of identification to support the identity verification process if you do not have a government ID.

Can I fly with just a photo on my phone?

No, TSA requires a physical, government-issued ID document. A photo on your phone is not acceptable. If you do not have a physical ID, you will need to go through the identity verification process, which involves answering questions and providing additional information to TSA officers.

What if my name changed and my ID does not match my airline ticket?

Your ID name must match your airline ticket name. If you recently changed your name through marriage, divorce, or legal process, update your ID before flying. If your ticket name does not match your ID, contact your airline to correct the ticket. TSA will not let you through security if the names do not match, even if you have a valid reason for the difference.