A passport works for domestic flights, but Real ID is simpler for most people
Yes, you can use a passport instead of a Real ID to board a domestic flight in the United States. The Transportation Security Administration (TSA) accepts a valid U.S. passport as proof of identity at airport security checkpoints. However, a passport and a Real ID serve different purposes, and choosing between them depends on what you actually need to do and how often you travel.
A Real ID is a driver's license or state ID card that meets federal security standards. A passport is a travel document issued by the U.S. Department of State. Both prove your identity to TSA, but they are not interchangeable for every situation. Understanding which one makes sense for you means knowing what each one is for and what it costs to get.
Key Takeaways
- A valid U.S. passport satisfies TSA identity requirements for domestic flights, just as a Real ID does.
- Real ID is a driver's license or state ID that meets federal standards; a passport is a separate travel document issued by the State Department.
- If you already have a passport and rarely fly domestically, using it at airport security is free and requires no additional steps.
- If you drive and need a state ID anyway, upgrading to Real ID at your DMV is usually cheaper and faster than obtaining a passport.
- Starting May 7, 2025, TSA will no longer accept a regular driver's license for domestic flights — you will need either Real ID or a passport.
When a passport is practical for airport security
A passport works at TSA checkpoints for domestic flights because it is a federally issued identity document with security features that TSA recognizes. If you already have a valid passport, you can hand it to the TSA officer instead of a Real ID driver's license. You do not need to do anything else — no additional forms, no fees, no visit to your state DMV.
This is most practical if you travel domestically by air only occasionally and you already have a passport for international travel. You avoid the step of going to your DMV to upgrade your driver's license. If your passport is current and you have it with you when you fly, it is a straightforward solution.
However, a passport is not practical for everyday life. You cannot use it to drive, to enter a federal building, to open a bank account, or to prove your age at a bar. If you need a state ID for any of those reasons, you will still need to get one — and if you are getting one anyway, upgrading to Real ID at the same time costs little or nothing extra.
Why Real ID is usually the better choice for most travelers
If you drive or need a state ID for any reason, Real ID is almost always simpler than relying on a passport for flights. You already have to visit your DMV to renew or replace your driver's license. Upgrading to Real ID at that same visit usually costs nothing — many states charge no extra fee. You end up with one document that works for driving, federal buildings, and domestic flights.
Real ID also means you do not have to carry your passport every time you fly. A passport is a valuable document that you may want to keep in a safe place at home. A Real ID driver's license is something you carry anyway. Losing your passport at an airport is a much bigger problem than losing your driver's license.
The other advantage is that Real ID is faster to obtain than a passport in most cases. A Real ID upgrade at your DMV usually takes a few minutes to a few weeks, depending on your state's processing time. A passport can take four to six weeks or longer during peak travel seasons, and expedited service costs extra.
What documents you need for each option
| Document | What you need to get it | Processing time | Cost | Works for domestic flights |
|---|---|---|---|---|
| Real ID driver's license | Proof of identity, proof of Social Security number, proof of address, visit your state DMV | Same day to a few weeks, depending on state | Usually $0–$50 (often no extra fee to upgrade) | Yes, starting May 7, 2025, required |
| U.S. passport | process form, proof of citizenship, proof of identity, payment, in-person at passport acceptance facility | 4–6 weeks standard; 2–3 weeks expedited (costs extra) | $130–$165 for first-time adult passport | Yes, accepted now and after May 7, 2025 |
| Regular driver's license (non-Real ID) | Proof of identity, proof of Social Security number, proof of address, visit your state DMV | Same day to a few weeks, depending on state | Usually $0–$50 | No, not after May 7, 2025 |
The May 7, 2025 important date and what it means
On May 7, 2025, TSA will stop accepting a regular (non-Real ID) driver's license for domestic flights. After that date, you will need either a Real ID driver's license, a passport, a military ID, a tribal ID, or one of a few other federal documents. This important date has been delayed multiple times, but it is now final.
If you have a passport, this important date does not affect you — your passport will continue to work. If you have a regular driver's license and you fly domestically, you have two choices: upgrade to Real ID at your DMV, or use your passport at airport security. You do not have to do anything before May 7, but if you wait until then, you may face long lines at your DMV or at the airport.
If you have a regular driver's license and you do not fly, the important date does not require you to do anything. You can continue to use your regular driver's license to drive and for most other purposes. Real ID is only required for domestic flights and for entering certain federal buildings.
Passport vs. Real ID for federal building access
Both a passport and a Real ID allow you to enter federal buildings that require ID. However, a Real ID is more practical for this purpose because you carry it anyway. A passport is a travel document, and most people do not carry it daily.
Federal buildings include courthouses, Social Security offices, and some government agency offices. The specific rules vary by building, but both documents are accepted. If you need to enter federal buildings regularly, Real ID is the more convenient choice.
International travel: passport is your only option
A Real ID driver's license does not work for international travel. Only a passport, passport card, or other travel document issued by the State Department allows you to leave and re-enter the United States by air. If you travel internationally at all, you need a passport regardless of whether you also have Real ID.
This is the main reason to have both documents. A Real ID handles domestic flights and federal building access. A passport handles international travel and serves as a backup for domestic flights if your driver's license is lost or expired.
Frequently Asked Questions
Can I use an expired passport at TSA security for a domestic flight?
No. TSA requires a valid (non-expired) passport, just as it requires a valid driver's license. An expired passport will not work. If your passport has expired, you can renew it through the State Department, but this takes time. A Real ID driver's license is faster to obtain if you need to fly soon.
Do I need to carry my passport with me if I have Real ID?
No. If you have a Real ID driver's license, you only need to carry that for domestic flights. You only need your passport if you are traveling internationally or if your Real ID is lost or expired. Most people keep their passport at home in a safe place.
What if I have a passport but no driver's license?
Your passport works for domestic flights. However, you still need a state ID or driver's license for driving and for many other everyday purposes. Getting a regular driver's license from your DMV is usually faster and cheaper than relying on a passport for everything.
Can I use a passport card instead of a full passport for domestic flights?
Yes. A U.S. passport card is a valid travel document and TSA accepts it at airport security checkpoints for domestic flights, just as it accepts a full passport. However, a passport card cannot be used for international air travel — only a full passport works for that.
Is Real ID required if I only use my passport to fly?
No. If you have a valid passport and you only fly domestically, you do not need Real ID. Your passport satisfies TSA requirements. However, if you drive or need a state ID for any other reason, you will need to get a regular driver's license or Real ID anyway.