Yes, you can use your passport for domestic flights, but it's not the fastest option at security

A valid U.S. passport works as identification for domestic flights within the United States. The Transportation Security Administration (TSA) accepts it at every airport checkpoint. However, TSA PreCheck and Real ID-compliant documents move you through security faster, so most frequent travelers use those instead.

Your passport must be unexpired and issued by the U.S. State Department. If your passport expired, you cannot use it for any flight—domestic or international. A passport card (the wallet-sized version) also works for domestic air travel, though it's less common than the booklet.

The main trade-off: using a passport means you'll go through standard security screening, which typically takes longer than PreCheck lanes. If you fly domestically more than once or twice a year, a Real ID driver's license or state ID card is usually more convenient.

Key Takeaways

  • An unexpired U.S. passport is accepted at TSA security checkpoints for all domestic flights.
  • You will go through standard security screening with a passport, not the faster PreCheck lane, unless you also hold a PreCheck membership.
  • A passport card (the small wallet version) also works for domestic flights and is valid as long as it hasn't expired.
  • Real ID-compliant driver's licenses and state ID cards are faster at security and are required for domestic flights starting in 2025 if you don't have a passport or PreCheck.

What counts as a valid passport at the airport

The TSA accepts a standard U.S. passport booklet or a U.S. passport card. Both must be issued by the State Department and must not be expired. If your passport expired even one day ago, it will not work—TSA has no authority to accept expired documents, even for domestic travel.

A passport that is currently in the mail or being renewed does not work. You need the physical document in your hands at the checkpoint. If you're renewing your passport and your flight is coming up, you may need to use a different form of ID or reschedule.

Passports issued by other countries do not work for domestic U.S. flights. Only U.S. passports are accepted. If you are a permanent resident or visa holder, you'll need to use your state ID, Real ID, or other TSA-approved document instead.

How passport security screening differs from PreCheck

When you present a passport at security, you go through the standard TSA lane. This means you remove your shoes, belt, and light jacket; take out your laptop and liquids; and place everything in bins. The line typically moves slower than PreCheck, especially during peak travel times.

If you hold both a passport and a TSA PreCheck membership, you can use the PreCheck lane—you keep shoes and belt on, leave your laptop in your bag, and move through faster. PreCheck costs $78 to $85 for five years and requires an in-person appointment at an enrollment center.

For most people who fly domestically once or twice a year, a passport is fine. For frequent travelers, PreCheck or a Real ID driver's license saves time and money over the long run.

Real ID requirements and how they affect your passport choice

Starting May 7, 2025, the TSA will require all domestic air travelers to show either a Real ID-compliant driver's license, a passport, a passport card, or a military ID. A standard (non-Real ID) driver's license will no longer work for domestic flights after that date.

A Real ID driver's license or state ID card is marked with a gold or black star in the upper right corner. You can get one from your state's DMV by bringing proof of identity, proof of Social Security number, and proof of residency. The process takes a few weeks, and the card itself costs between $20 and $50 depending on your state.

If you already have a valid passport, you don't need to get a Real ID license—your passport will continue to work. But if you don't have a passport and you fly domestically after May 2025, you'll need either a Real ID license or a passport to board.

When a passport is your only option

If your state ID or driver's license is expired, suspended, or lost, a passport is a valid backup for domestic flights. You don't need to replace your ID when ready—you can fly with your passport while you sort out your state ID.

If you're traveling with a minor, note that children under 18 do not need a photo ID for domestic flights. An adult traveling with them must have valid ID. A passport works for this purpose, though a driver's license is more common.

If you're a non-citizen with a valid U.S. visa or permanent resident status, your passport is often the easiest form of ID to carry. Some states allow permanent residents to get a Real ID license, but requirements vary—check with your state's DMV before your flight.

Common mistakes to avoid when using your passport for flights

The most common error is bringing an expired passport. Check the expiration date on the back cover before you leave for the airport. An expired passport will be rejected at security, and you may miss your flight.

Don't assume your passport card works the same way as your booklet. It does work for domestic flights, but it's smaller and easier to lose. Keep it in a find pocket or bag, not loose in your wallet.

If you're renewing your passport, don't wait until the last minute. Standard renewal takes four to six weeks, and expedited renewal takes two to three weeks and costs extra. If your flight is sooner than that, you'll need to use a different form of ID or reschedule.

Don't bring your passport to the gate if you're only flying domestically. You only need it at security. Once you're through the checkpoint, you can put it away. This reduces the risk of losing it during your trip.

Passport alternatives for domestic flights

A Real ID-compliant driver's license or state ID card is the most common alternative. It's faster at security than a passport (if you also have PreCheck) and you already carry it daily.

A military ID works for domestic flights and is accepted at TSA checkpoints. If you're active duty, retired, or a dependent with a military ID, you can use it instead of a passport.

A trusted traveler card (PreCheck, Global Entry, NEXUS, or SENTRI) also works as your primary ID at security. If you have one of these, you don't need to show a separate passport or driver's license, though you still need to carry one.

An Enhanced Driver's License (EDL) is a Real ID-compliant license that also works for land and sea travel to Canada, Mexico, and the Caribbean. Not all states offer them, but if yours does, an EDL is a good long-term option.

Frequently Asked Questions

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

No. A Real ID driver's license is sufficient for domestic flights. You only need a passport if your driver's license is expired, lost, or not Real ID-compliant. After May 7, 2025, you must have either a Real ID license, a passport, or another TSA-approved form of ID.

Can I use an expired passport if I have nothing else?

No. TSA will not accept an expired passport under any circumstances, even for domestic flights. If your passport is expired and you have no other valid ID, you cannot board a domestic flight. You'll need to renew your passport or use a different form of ID before you travel.

What if my passport is damaged or has a torn page?

A damaged passport may still work at security if it's still readable and the expiration date is clear. However, some TSA officers may reject it. If your passport is significantly damaged, it's safer to renew it before your flight or bring a backup form of ID like a driver's license.

Do I need a passport to fly domestically if I have a passport card?

A passport card works just as well as a passport booklet for domestic flights. You only need one or the other, not both. The card is smaller and easier to carry, but the booklet is more widely recognized and works for international travel too.

Can I use my passport for a domestic flight if I'm not a U.S. citizen?

If you hold a valid U.S. visa or are a permanent resident, your passport works for domestic flights. Non-citizens cannot use a foreign passport for domestic U.S. air travel—you must have a valid visa or permanent resident status and carry your passport as proof.