Yes, a passport works for domestic flights, but it's not the fastest option at security

A valid U.S. passport is an acceptable form of identification for domestic air travel. The Transportation Security Administration (TSA) accepts it at every airport checkpoint in the country. However, if you're flying within the U.S., a passport takes longer to verify than a Real ID-compliant driver's license or state ID card, because TSA officers have to manually check it against their database rather than scanning it like they do with a Real ID.

The main reason to use a passport for domestic travel is if you don't have another form of government-issued photo ID, or if your driver's license has expired and you need to fly before you can renew it. If you have a current Real ID driver's license or state ID, that will move you through security faster.

Key Takeaways

  • A U.S. passport is accepted at TSA checkpoints for domestic flights, but TSA officers verify it manually rather than scanning it, which adds time.
  • A Real ID-compliant driver's license or state ID card is faster at security because it can be scanned, so use that if you have one.
  • Your passport must be valid (not expired) to use it for domestic air travel.
  • If your driver's license is expired but your passport is current, the passport is your better option for flying domestically.
  • You do not need a passport for domestic flights—it is straightforward one of several acceptable forms of ID.

What counts as acceptable ID at the airport

TSA accepts several forms of government-issued photo identification for domestic flights. A valid U.S. passport is one of them. Others include a Real ID-compliant driver's license, a state ID card, a military ID, a tribal ID, a permanent resident card, or a U.S. passport card (the wallet-sized version, not the book).

The key word is valid—your passport cannot be expired. If it expired, TSA will not accept it, even if you have an appointment to renew it. An expired driver's license is also not acceptable, but some states allow a grace period of a few months after expiration for in-person renewal; check your state's DMV website to see if yours does.

Why a Real ID driver's license is faster than a passport

Real ID is a federal security standard that most states have adopted for driver's licenses and state ID cards. A Real ID license has a small star or flag symbol in the upper right corner. When you hand a Real ID to a TSA officer, they scan it with a machine that when ready verifies your identity and checks you against the TSA database.

When you hand a passport to a TSA officer, they cannot scan it the same way. Instead, they manually look up your information in their system, which takes longer. This is not a problem if the line is short, but during busy travel times it can add several minutes to your wait. If you have a current Real ID driver's license, use that instead of your passport for domestic flights.

When your passport is your only option

If your driver's license is expired and you don't have a state ID card, your passport is the form of ID you should bring. You can still fly domestically with it. TSA will verify it manually, but you will get through security.

If you're in the middle of renewing your driver's license and don't have it yet, a passport works. If you've lost your driver's license and haven't replaced it, a passport works. The key is that your passport must be current—not expired—and you must bring it to the checkpoint.

Getting a Real ID if you don't have one

If you want to speed up airport security and you don't have a Real ID driver's license, you can get one from your state's DMV. You'll need to visit in person with proof of identity (your passport works), proof of Social Security number, and proof of your current address. The process takes a few weeks, and there is usually a fee of $10 to $30 depending on your state.

You don't have to get a Real ID to fly domestically—a passport works fine. But if you fly more than once or twice a year, the faster security line is worth the trip to the DMV. Check your state's DMV website for the exact documents you need and the current fee.

What to bring to the checkpoint

Bring your passport in its original form—the book, not a photocopy. TSA officers need to see the actual document and verify the security features in it. A photocopy or a photo of your passport on your phone will not work.

You do not need to bring your boarding pass printed out, though it doesn't hurt. Most TSA checkpoints now scan the barcode on your phone. Have your passport and your phone ready when you reach the officer, and be prepared to answer basic questions about your flight and the reason for your travel.

International travel and passport books

If you're flying internationally, you must have a passport book (the full-size version). A passport card is not accepted for international air travel. A driver's license, even a Real ID, is not accepted for international flights. Only a passport book works.

For domestic flights, the passport book is acceptable but slower than a Real ID. For international flights, it's your only option. If you have a passport card and you're flying domestically, you can use it, but again, a Real ID driver's license will be faster.

Frequently Asked Questions

Can I use an expired passport for a domestic flight?

No. TSA will not accept an expired passport at the security checkpoint, even if it expired recently. Your passport must be valid. If your passport is expired and you need to fly, you'll need another form of ID, such as a current driver's license or state ID card.

Is a passport card the same as a passport book for domestic flights?

A passport card is acceptable for domestic flights and works the same way as a passport book at TSA—it's verified manually rather than scanned. However, a passport card cannot be used for international air travel, only a passport book can. For domestic flights, either one works, but a Real ID driver's license is faster.

Do I need to renew my passport before flying domestically?

Only if it's expired. If your passport is current, you can use it to fly domestically. You don't need to renew it just because you're flying within the U.S. Renewal is only necessary for international travel or if your passport has actually expired.

What if I lose my passport at the airport?

Tell a TSA officer or airport staff when ready. If you lose it before the security checkpoint, you can still fly if you have another form of ID. If you lose it after security, contact the TSA Lost and Found. You'll need to report it to the State Department later if you need to replace it, but losing it at the airport doesn't prevent you from flying that day if you have backup ID.