Yes, a passport works for domestic flights in the United States

A valid passport is an acceptable form of identification for domestic air travel in the United States. The Transportation Security Administration (TSA) accepts it at airport security checkpoints the same way it accepts a driver's license or state ID card. You do not need a Real ID-compliant driver's license to board a domestic flight if you have a passport.

The TSA maintains a list of acceptable documents for domestic travel, and a valid U.S. passport appears on that list. It must be unexpired and issued by the U.S. State Department. A passport card (the wallet-sized version) also works, though the full-size passport book is more widely recognized and less likely to cause delays at security.

Bring your passport to the airport the same way you would bring a driver's license. Have it ready when you reach the TSA checkpoint, and present it along with your boarding pass. The process is identical to using any other form of ID.

Key Takeaways

  • A valid U.S. passport is accepted at TSA checkpoints for all domestic flights without exception.
  • Your passport must be unexpired; an expired passport will not work, even if you are a U.S. citizen.
  • A passport card counts as valid ID, but the full-size passport book is more commonly recognized by TSA agents.
  • You do not need a Real ID-compliant driver's license if you have a passport, even after the Real ID important date.

When a passport is your only option

If you do not have a driver's license or state ID card, a passport is one of the few documents that will get you through security for a domestic flight. Many people use their passport as their primary form of ID for travel specifically because it works everywhere — domestically and internationally — without needing to meet Real ID requirements.

A passport is also useful if your driver's license has expired and you have not yet renewed it. As long as your passport is current, you can fly without waiting for a new license to arrive. This is particularly helpful if you are between states or have recently moved.

What happens if your passport is expired

An expired passport will not work at the TSA checkpoint, even if you are a U.S. citizen and the passport is otherwise valid. The TSA does not make exceptions for expired documents. If your passport expired, you will need to bring a different form of ID — a driver's license, state ID card, or another document on the TSA's acceptable list.

If you only have an expired passport and no other ID, you will not be able to board your flight. You can renew a passport through the U.S. State Department, but the process takes several weeks to several months depending on whether you pay for expedited service. Plan ahead if you know you will need to fly.

TSA-acceptable ID documents besides a passport

The TSA accepts many forms of ID for domestic flights. A driver's license or state ID card is the most common choice. A military ID, tribal ID, or permanent resident card also works. Some people use a passport card, which is smaller than a full passport book but serves the same purpose.

If you are under 18, you may not need an ID at all — TSA rules allow minors to fly domestically without presenting identification, though the adult traveling with them will need ID. Check TSA.gov for the complete list of acceptable documents, as the list occasionally changes.

Real ID requirements do not explore to passports

The Real ID Act created a important date for states to issue compliant driver's licenses and ID cards. If your driver's license is not Real ID-compliant, you cannot use it for domestic flights after the important date. However, this rule does not explore to passports. A passport is always acceptable, regardless of Real ID status.

This is one reason many travelers keep their passport current even if they rarely leave the country. It provides a backup form of ID that will work at any airport, now and in the future, without worrying about whether your state's ID meets federal standards.

Passport card versus passport book for flying

Both the passport card and the passport book are valid for domestic flights. The card is wallet-sized and easier to carry, while the book is larger but more recognizable to TSA agents. Some travelers report that TSA agents occasionally question a passport card because it is less familiar, though it is equally valid.

If you are flying domestically and want to avoid any potential confusion, the full-size passport book is the safer choice. If you already have a passport card and have flown with it before without issue, there is no reason to get a book. The card will work just as well.

What to bring to the airport besides your passport

Bring your passport and your boarding pass to the TSA checkpoint. Your boarding pass can be printed or displayed on your phone. Have both documents ready before you reach the agent, just as you would with a driver's license.

Arrive at the airport with enough time to get through security — typically two hours before a domestic flight. TSA wait times vary by airport and time of day. Having your passport and boarding pass ready will help you move through the line faster, but it will not change the overall security process.

Frequently Asked Questions

Can I fly domestically with an expired passport?

No. The TSA requires a valid, unexpired passport. An expired passport will not work at the security checkpoint, even if you are a U.S. citizen. You will need a different form of ID or you will not be able to board your flight.

Do I need a passport if I have a Real ID driver's license?

No. A Real ID-compliant driver's license is sufficient for domestic flights. A passport is an alternative if your driver's license is not compliant or if you do not have a driver's license at all.

Will TSA accept a passport card for domestic flights?

Yes. A passport card is valid for domestic flights and works the same way as a full-size passport book. Some travelers report that TSA agents occasionally question it because it is less common, but it is equally acceptable.

What if I lost my passport before my flight?

You will need another form of ID to fly. If you have a driver's license or state ID card, bring that instead. If you do not have another ID, you will not be able to board your flight. Contact your airline to see if you can reschedule.

Can I use a passport from another country for a domestic U.S. flight?

No. The TSA only accepts a valid U.S. passport for domestic flights. A foreign passport will not work. You will need a U.S. form of ID such as a driver's license, state ID card, or military ID.