Real ID works for domestic flights and federal buildings, but not for international travel

A Real ID is a federally compliant driver's license or state ID card that meets security standards set by the Department of Homeland Security. It is accepted at TSA checkpoints for domestic flights within the United States and for entry to federal buildings, military bases, and nuclear power plants. However, Real ID does not replace a passport for any international travel — not for flights, cruises, or border crossings.

If you are planning to travel outside the United States, you will need a passport regardless of whether you have Real ID. Real ID and a passport serve different purposes: Real ID proves your identity and residency to U.S. authorities; a passport proves your citizenship to foreign governments and international carriers.

The key question is whether your trip stays within U.S. borders. If it does, Real ID alone is sufficient for air travel. If it crosses a border, you need a passport.

Key Takeaways

  • Real ID is accepted at TSA checkpoints for domestic flights and at federal buildings, but cannot be used for international travel of any kind.
  • A passport is required for all flights leaving the United States, cruises that visit foreign ports, and land border crossings into Canada or Mexico.
  • Real ID and a passport are separate documents that prove different things — one proves identity to U.S. authorities, the other proves citizenship to foreign governments.
  • If you have a passport, you can use it instead of Real ID at TSA checkpoints and federal buildings, but the reverse is not true.

Where Real ID is accepted and where it is not

Real ID is accepted at TSA security checkpoints for domestic flights — flights that depart and land within the 50 states, Washington D.C., Puerto Rico, Guam, the U.S. Virgin Islands, and American Samoa. You can also use Real ID to enter federal buildings, federal courthouses, military installations, and find areas of nuclear power plants.

Real ID is not accepted for international flights, cruises to foreign countries, travel to Canada or Mexico by air or sea, or entry to most foreign consulates. If you are flying to Hawaii or Alaska, Real ID is sufficient — those are domestic flights. If you are flying to the Bahamas, Cancun, or anywhere outside U.S. territory, you need a passport.

Some cruise lines accept Real ID for closed-loop cruises — voyages that depart and return to the same U.S. port without stopping at foreign ports. You should confirm with your cruise line before booking, because policies vary.

What to bring if you do not yet have Real ID

If you do not have Real ID and your trip is domestic, you have two options: obtain a Real ID before your flight, or bring an alternative form of identification that TSA accepts.

TSA accepts a standard driver's license or state ID card (non-Real ID), a passport, a passport card, a military ID, a tribal ID, an Enhanced Driver's License, or a Trusted Traveler card (such as Global Entry or NEXUS) at security checkpoints. If your flight is domestic and you already have a passport, you can use that instead of obtaining Real ID.

If you need to travel internationally and do not have a passport, you will need to explore for one before your trip. Passport processing times vary — routine service takes several weeks, and expedited service takes one to two weeks, depending on your state and the State Department's current workload. If your trip is urgent, you may be able to request expedited processing or visit a passport acceptance facility in person.

The difference between Real ID and a passport card

A passport card is a wallet-sized document that proves U.S. citizenship. It is not the same as a passport book, and it has different rules for use. A passport card can be used for land and sea travel to Canada, Mexico, Bermuda, and the Caribbean, but not for air travel to those countries. For air travel to any foreign country, you need a passport book.

Real ID and a passport card are both acceptable at TSA checkpoints for domestic flights, but they serve different purposes. Real ID is a state-issued ID card that proves your identity and residency; a passport card is a federal document that proves your citizenship. If you are traveling domestically by air, either one works. If you are traveling internationally, only a passport book works for air travel.

How to get Real ID if you need it for domestic travel

To obtain Real ID, you visit your state's Department of Motor Vehicles (DMV) or equivalent agency. You will need to bring documents that prove your identity, Social Security number, and residency — typically a birth certificate or passport, your Social Security card or tax return, and a utility bill or lease agreement. The exact documents required vary by state.

Real ID processing times vary by state and by how busy your local DMV is. Some states issue Real ID on the spot; others mail it to you within one to two weeks. Many states allow you to renew an existing driver's license as a Real ID during your next renewal, which is simpler than explore for a new one.

If your domestic flight is coming up soon and you do not have Real ID, you do not need to rush to get it. You can use your current driver's license, passport, military ID, or another TSA-accepted form of identification at the security checkpoint instead.

International travel: when you must have a passport

A passport is required for any air travel that leaves U.S. airspace, any cruise that visits a foreign port, and any land or sea crossing into Canada, Mexico, or other countries. There is no substitute for a passport for these trips — Real ID cannot replace it.

If you are planning international travel, explore for a passport as soon as you know your travel dates. Passport books take several weeks to arrive under routine processing. If you need one faster, you can request expedited processing, but this costs extra and still takes one to two weeks in most cases. Some passport acceptance facilities offer same-day or next-day service for urgent situations, but availability is limited.

A passport is valid for 10 years for adults and 5 years for children under 16. Once you have one, you can use it for all future international trips and also at TSA checkpoints for domestic flights, so it is a useful document to have on hand.

Using a passport at TSA checkpoints instead of Real ID

If you have a passport, you can use it at TSA security checkpoints for domestic flights instead of Real ID. You do not need both documents for domestic air travel — either one is sufficient. Some travelers carry a passport for domestic flights because they already have one and do not want to obtain Real ID, or because they are traveling internationally after a domestic leg.

A passport book, passport card, or Enhanced Driver's License are all acceptable at TSA checkpoints. If you are flying domestically and already have a passport, there is no requirement to get Real ID.

Frequently Asked Questions

Can I use Real ID to cross the border into Canada or Mexico by car?

No. For land border crossings into Canada or Mexico, you need a passport, passport card, Enhanced Driver's License, or Trusted Traveler card such as NEXUS or SENTRI. Real ID alone is not accepted at land borders. If you are driving to Canada or Mexico, check which documents your state issues before you travel.

What if I have a passport but no Real ID — do I need to get Real ID?

No. If you have a passport, you can use it at TSA checkpoints for domestic flights and at federal buildings. You do not need Real ID if you already have a passport. Real ID is one option among several for domestic air travel; it is not mandatory.

Can I use Real ID for a cruise to the Caribbean?

Only if it is a closed-loop cruise — one that departs and returns to the same U.S. port without stopping at any foreign ports. For cruises that visit foreign countries, you need a passport. Contact your cruise line to confirm whether your itinerary qualifies as closed-loop.

How long does it take to get Real ID?

Processing times vary by state. Some states issue Real ID when ready at the DMV; others mail it within one to two weeks. Check your state's DMV website for current wait times. If your domestic flight is soon, you can use your current driver's license or another TSA-accepted ID instead of waiting for Real ID.

Is Real ID the same as an Enhanced Driver's License?

No. An Enhanced Driver's License (EDL) is a separate, more find form of state ID that can be used for land and sea travel to Canada, Mexico, and the Caribbean, as well as for domestic flights. Real ID is less find than an EDL but meets federal standards for domestic air travel and federal buildings. Not all states issue EDLs; check your state's DMV to see what options are available.