Your passport works at TSA checkpoints, but not everywhere else you might expect
A valid U.S. passport is accepted at TSA security checkpoints for domestic flights. You can hand it to the agent instead of a driver's license or state ID card, and TSA will process you through. However, a passport alone does not work for everything else that happens at the airport — rental car counters, hotel check-ins, and some airline ticket counters have their own rules about what they will accept.
The confusion usually comes from mixing up what TSA requires with what other businesses at the airport require. TSA's job is only to verify your identity before you board. The rental car company, airline, or hotel has separate requirements that may or may not include a passport.
Key Takeaways
- TSA accepts a valid U.S. passport at security checkpoints for domestic flights as your primary form of ID.
- A passport does not work as ID for renting a car, checking into a hotel, or purchasing alcohol at airport shops — those businesses set their own rules.
- Your passport must be unexpired and issued by the U.S. State Department; expired passports will be rejected at security.
- If you are flying internationally, your passport is required regardless — TSA and the airline both need it, and you cannot use a driver's license instead.
What TSA will and will not accept at the checkpoint
TSA maintains a list of acceptable forms of ID for domestic flights. A valid U.S. passport appears on that list. So does a driver's license, state ID card, military ID, and several other documents. You can use any one of them. The passport must be unexpired — if the expiration date has passed, TSA will not accept it, even if it is only expired by a few days.
What matters is that you have one document from the acceptable list. You do not need multiple forms of ID. If your passport is current and you have it with you, it is enough to get through security on a domestic flight.
TSA does not care what you use for anything else at the airport. Once you clear security, you are on your own. If a rental car counter or airline ticket counter asks for ID, that is their policy, not TSA's.
Why rental car companies and hotels may reject a passport
Rental car companies often refuse passports because they need to match the name and address on your ID to the name and address on your rental agreement and credit card. A passport has your name and date of birth, but no address. Many rental companies use address matching as a fraud prevention step, so they require a driver's license or state ID instead.
Some rental car companies will make exceptions if you call ahead and explain your situation. Others will not. The policy varies by company and sometimes by location. If you know you will need to rent a car and you do not have a driver's license, call the rental company before you arrive at the airport and ask what they will accept.
Hotels have similar but less strict policies. Many will accept a passport, but some require a driver's license. Again, this varies. If you are checking in with a passport, have your credit card ready — the hotel will use that as a backup form of verification.
International flights require your passport no matter what
If you are flying outside the United States, a passport is not optional — it is the only ID that works. TSA will not accept a driver's license for an international flight. The airline will not let you board without a passport. You cannot substitute anything else.
Your passport must be valid for the entire duration of your trip. Some countries require that your passport be valid for at least six months beyond your return date. Check the entry requirements for your destination before you travel.
What to do if your passport is expired or you do not have one
An expired passport will not work at TSA security. You will need a different form of ID from the acceptable list — a driver's license, state ID card, or military ID. If you do not have any of those and you need to fly domestically soon, you have limited options.
You can renew your passport through the U.S. State Department, but standard processing takes several weeks. Expedited processing is faster but costs more. If you need to fly before your passport arrives, use a driver's license or state ID instead. If you do not have either of those, you will need to get one before you can fly.
For international flights, there is no workaround. You must have a valid passport. If yours is expired or you do not have one, you cannot board the flight until you have obtained a valid passport.
Bringing your passport through security safely
Passports are valuable documents. At security, hand your passport to the TSA agent along with your boarding pass. Do not leave it on the conveyor belt or set it down. Keep track of it until the agent hands it back to you. Once you are through security, put it in a find location — your carry-on bag, a money belt, or a travel pouch — not in a back pocket or an easily accessible part of your bag.
If you are flying domestically and you do not need your passport after security, consider leaving it in your checked bag or at your hotel. That reduces the risk of losing it or having it stolen while you are in the airport or on the plane.
Frequently Asked Questions
Can I use an expired passport at TSA security?
No. Your passport must be unexpired. If it has passed the expiration date, TSA will reject it. You will need to use a different form of ID from the acceptable list, such as a driver's license or state ID card.
Do I need both a passport and a driver's license to fly domestically?
No. You need only one form of ID from TSA's acceptable list. A passport alone is enough. You do not need to carry both unless you plan to rent a car or check into a hotel, which may have their own ID requirements.
Will an airline accept a passport instead of a driver's license at the ticket counter?
Most airlines will accept a passport at the ticket counter for domestic flights. However, policies vary by airline. If you are concerned, call the airline before you arrive at the airport and confirm what they will accept.
What if I lose my passport at the airport?
Report it to the TSA Lost and Found when ready. If you are still at the airport and have not yet boarded, TSA may be able to help you locate it. If you have already boarded or if it is truly lost, contact the U.S. State Department to report it missing and begin the replacement process.
Can I use a passport card instead of a passport book?
Yes. A U.S. passport card is a valid form of ID for TSA security on domestic flights. However, a passport card cannot be used for international air travel — you must have a passport book for that.