You don't need a driver's license to travel by plane, train, or bus within the United States, but you do need a valid government-issued photo ID

A driver's license is one form of acceptable ID, but it is not the only one. The Transportation Security Administration (TSA) accepts a long list of alternatives for domestic flights, including a passport, passport card, military ID, tribal ID, and several others. For trains and buses, the rules are looser still — many routes do not require ID at all, though some long-distance services ask for it at booking or boarding.

The confusion usually comes from mixing up two separate requirements: whether you need a license to operate a vehicle (you do), and whether you need a license to board a plane or train (you do not). If you are traveling as a passenger and not driving, your license status does not matter.

Key Takeaways

  • Domestic air travel requires a valid government photo ID, but a driver's license is optional — a passport, military ID, or tribal ID works just as well.
  • Train and bus travel within the United States rarely requires any ID, though some long-distance services may ask for it during booking.
  • International travel requires a passport or passport card, not a driver's license.
  • If you do not have a driver's license and need photo ID for travel, you can obtain a state ID card from your DMV instead.
  • A Real ID-compliant driver's license or ID card is required for domestic flights starting in 2025 if you are using a license as your travel ID.

What TSA accepts for domestic flights

The TSA maintains a list of acceptable IDs for domestic air travel. A driver's license qualifies, but so does a passport, passport card, military ID (active duty or retired), a tribal ID issued by a federally recognized tribe, a permanent resident card, a U.S. citizen ID card, a state ID card, and several others. You do not have to choose a driver's license if you have any of these alternatives.

Starting in 2025, the TSA will require that any driver's license or state ID used for domestic flights be Real ID-compliant. This means the card must display a gold star or other marking showing it meets federal security standards. If your license does not have this marking, you can still fly domestically using a passport or passport card instead. You can also renew your license at your state DMV and request a Real ID-compliant version.

The Real ID requirement applies only to air travel and entry to federal buildings. It does not affect train, bus, or car travel.

Train and bus travel ID requirements

Amtrak (the national passenger rail service) does not require ID for most routes, though it may ask for it when you board. Some regional rail services have similar policies. If you are traveling on a route that does ask for ID, any government-issued photo ID will work — driver's license, passport, state ID, or military ID.

Greyhound and other intercity bus lines do not require ID for boarding on most routes. Some bus services ask for ID when you purchase a ticket online or at the counter, but this is less common than with air travel. Local and regional buses almost never ask for ID.

If you are renting a car to drive yourself, you will need a valid driver's license. If you are being driven by someone else, you do not.

International travel and passport requirements

For travel outside the United States, you need a passport or passport card. A driver's license is not accepted for international travel under any circumstances. You cannot board an international flight, enter Canada or Mexico by land, or travel by ship to another country with only a driver's license.

A passport card is a wallet-sized alternative to a full passport book and costs less. It works for land and sea travel to Canada, Mexico, Bermuda, and the Caribbean, but not for air travel. For international flights, you need the full passport book.

Getting a state ID card if you don't have a driver's license

If you do not drive and do not have a driver's license, you can obtain a state ID card from your state's Department of Motor Vehicles (DMV). This card serves the same purpose as a driver's license for travel and other ID needs — it is a government-issued photo ID that TSA accepts for domestic flights and that works for train and bus travel.

The process is similar to getting a driver's license: you visit your local DMV office, bring proof of identity and residency, have your photo taken, and pay a fee. The fee for a state ID is usually lower than for a driver's license. You can request a Real ID-compliant version at the same time.

A state ID card is valid for the same length of time as a driver's license in your state, usually five to eight years depending on your age.

What happens if you don't have any photo ID

If you arrive at the airport without any acceptable photo ID, TSA has a process called Secondary Verification. An agent will ask you questions to verify your identity — your name, date of birth, address, and other personal information. If you can answer these questions correctly, you may be allowed to board, though the process can add significant time to your airport visit.

This process is not may provide to work, and TSA recommends having photo ID before you arrive at the airport. If you know you will be traveling soon and do not have ID, obtaining a state ID card or renewing your driver's license before your trip is the safest approach.

For train and bus travel, the lack of ID is less of an issue since most services do not require it. However, having ID is still useful for other purposes during your trip.

Real ID compliance and what it means for your travel

Real ID is a federal security standard that states must meet for driver's licenses and state ID cards used for federal purposes. The requirement came from a 2005 law and has been phased in over time. As of 2025, TSA will not accept non-compliant licenses for domestic air travel, though other forms of ID (passport, military ID, etc.) will still work.

You can check whether your license is Real ID-compliant by looking for a gold star, gold circle, or other marking on the card — the exact symbol varies by state. If your license does not have this marking and you want to use it for air travel after 2025, you will need to renew it and request the Real ID version. This usually costs the same as a regular renewal.

If you prefer not to upgrade to Real ID, you can straightforward use your passport or passport card for domestic flights instead. There is no requirement to have a Real ID license.

Frequently Asked Questions

Can I travel by plane with just a state ID card instead of a driver's license?

Yes. A state ID card is a government-issued photo ID that TSA accepts for domestic flights. It works exactly the same way as a driver's license for travel purposes. If your state ID is Real ID-compliant, it will continue to work for domestic flights after 2025.

Do I need a driver's license to travel to Canada or Mexico by car?

You need a valid driver's license to operate the vehicle. For entry to Canada or Mexico, you need a passport, passport card, NEXUS card, or Enhanced Driver's License (available in some states). A standard driver's license alone is not sufficient for land border crossing.

What if my driver's license is expired but I'm only traveling by plane?

An expired driver's license is generally not accepted by TSA. You should use a passport, passport card, military ID, or another current form of ID instead. If you only have an expired license, you can explore for a state ID card or renew your license before your trip.

Is a passport card the same as a passport book for air travel?

No. A passport card works for land and sea travel to nearby countries but not for air travel. For domestic flights, a passport card is accepted by TSA. For international flights, you need a full passport book.

Can I use a military ID for domestic air travel if I don't have a driver's license?

Yes. Military ID (active duty, retired, or reserve) is on TSA's list of acceptable forms of ID for domestic flights. You do not need a driver's license if you have military ID.