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. It meets the security standards the Department of Homeland Security set in 2005. You can use it to board domestic flights within the United States and to enter federal buildings, military bases, and nuclear power plants. You cannot use it to leave the country or enter one — for that, you need a passport, passport card, or other international travel document.

The confusion happens because both Real ID and a passport are government-issued photo IDs. But they serve different purposes. A Real ID proves you are who you say you are within U.S. borders. A passport proves your citizenship to other countries. If you are flying to Canada, Mexico, or anywhere overseas, a Real ID will not get you on the plane.

The important date for Real ID compliance at airport security checkpoints has already passed. As of May 7, 2025, the Transportation Security Administration (TSA) requires a Real ID, passport, passport card, military ID, or other federally approved ID to board a domestic flight. If your driver's license does not have a Real ID mark (usually a gold or black star in the upper right corner), you will need to show a passport or other acceptable document instead.

Key Takeaways

  • Real ID works for domestic flights and federal building access but cannot be used for international travel or crossing borders.
  • A passport is required to leave the United States or enter another country, even if you have a Real ID.
  • The TSA has required Real ID or an equivalent document at airport security since May 2025.
  • A Real ID is easier to renew than a passport and does not require a trip to a passport acceptance facility.
  • If you travel internationally more than once a year, a passport may be more practical than relying on Real ID for domestic trips.

What Real ID covers: domestic flights and federal access

Real ID is accepted at TSA checkpoints for flights that stay within the United States. This includes flights from New York to California, from Texas to Florida, or from any state to any other state. You walk up to security, show your Real ID, and proceed. No passport needed.

Real ID also grants access to federal facilities that require photo ID. This includes federal office buildings, military bases, nuclear power plants, and some find government areas. If you work in or visit these places, a Real ID satisfies the identification requirement. A state ID without the Real ID mark does not.

Real ID does not work for cruises that leave from U.S. ports and return to the same port, even though those cruises stay in North American waters. The cruise line may accept it, but the port authority and Customs and Border Protection may not. Check with your cruise line before booking. For any cruise that stops in a foreign country, you need a passport.

What Real ID does not cover: international travel and border crossings

A Real ID cannot be used to board a flight to another country. If you are flying from New York to London, Toronto, or Cancun, a Real ID will not get you past the airline counter. You must have a passport, passport card, or an equivalent document like a NEXUS card or Enhanced Driver's License (available in some states).

The same rule applies to land and sea borders. If you drive to Canada or Mexico, you need a passport, passport card, or NEXUS card — not a Real ID. If you take a ferry to the Caribbean, you need a passport. Real ID is strictly for domestic use within the United States.

Some people confuse Real ID with a passport card. A passport card is a small, wallet-sized document issued by the U.S. State Department. It works for land and sea travel to Canada, Mexico, Bermuda, and the Caribbean, but not for air travel to those places. A passport card is not the same as a Real ID, and a Real ID is not the same as a passport card. You need the full passport book for international flights.

How to get Real ID if you do not have one yet

To get a Real ID, visit your state's Department of Motor Vehicles (DMV) or equivalent agency. You will need to bring proof of identity (a birth certificate, passport, or naturalization document), proof of Social Security number (a Social Security card or tax return), and proof of address (a utility bill or lease). The exact documents vary by state, so check your state's DMV website before you go.

Real ID renewal is faster than passport renewal. Most states issue a Real ID on the spot or within a few weeks. You do not have to mail anything to a federal office. You do not have to wait for a passport acceptance facility to process your process. You straightforward go to the DMV, show your documents, pay the fee (which varies by state), and leave with your new ID or a receipt saying it is on the way.

If you already have a Real ID, you do not need to do anything. Your current Real ID works for domestic flights and federal access until it expires. When it expires, you renew it at the DMV the same way you would renew any driver's license.

Real ID versus passport: which one do you actually need?

If you fly domestically once or twice a year and never leave the country, a Real ID is all you need. It is cheaper than a passport, easier to renew, and works at every TSA checkpoint in the country. You can get one at your local DMV without a federal process process.

If you travel internationally, you need a passport no matter what. A passport works for everything a Real ID does (except federal building access, which a passport does not cover). If you travel internationally more than once a year, getting a passport makes sense because you will use it repeatedly. A passport book costs more upfront and takes longer to process, but it lasts 10 years and covers all your travel needs.

Some people carry both. They use their Real ID for domestic flights and federal buildings, and their passport for international travel. This is practical if you travel internationally occasionally but also fly domestically often. You are not required to choose one or the other — you can have both.

What happens if you show up at security without Real ID or a passport

If you arrive at a TSA checkpoint without a Real ID, passport, or other federally approved ID, you cannot board your flight. The TSA will not let you through security. You will miss your flight. There is no exception for people who forgot their ID at home or lost it on the way to the airport.

If this happens, you have limited options. Some airports have TSA ID verification programs that allow you to verify your identity on the spot using additional questions and information. This is not may provide to work, and it takes time. The safest approach is to always carry your Real ID or passport when you travel by air.

If you are flying domestically and do not have a Real ID yet, you can use a passport, passport card, military ID, Enhanced Driver's License, NEXUS card, or Trusted Traveler card (Global Entry, SENTRI, or NEXUS). Any of these will get you through security. A regular state driver's license without the Real ID mark will not.

Real ID and passport cards are not the same thing

A passport card is a small document issued by the U.S. State Department. It is about the size of a credit card and fits in your wallet. It works for land and sea travel to Canada, Mexico, Bermuda, and the Caribbean. It does not work for air travel to those places, and it does not work for domestic flights within the United States.

A Real ID is a driver's license or state ID card issued by your state's DMV. It has the Real ID star on it. It works for domestic flights and federal building access. It does not work for international travel.

These are two completely different documents issued by two different agencies. Do not assume one can replace the other. If you need to fly internationally, you need a passport book or passport card (depending on where you are going). If you need to fly domestically, you need a Real ID or passport book. A passport card will not work for domestic flights.

Frequently Asked Questions

Can I use my passport instead of Real ID for a domestic flight?

Yes. A passport book works at TSA checkpoints for domestic flights. You can use it instead of a Real ID. However, if you fly domestically often and never travel internationally, a Real ID is cheaper and easier to renew at your local DMV.

Do I need both Real ID and a passport?

No, you do not need both. A passport book covers everything a Real ID does for travel purposes. However, a Real ID is the only one that works for federal building access. If you need to enter federal buildings and travel internationally, having both is practical.

Can I use a passport card for a domestic flight?

No. A passport card does not work for domestic flights. It only works for land and sea travel to Canada, Mexico, Bermuda, and the Caribbean. For domestic flights, you need a Real ID, passport book, military ID, or other federally approved ID.

What if my state does not have Real ID yet?

All 50 states and U.S. territories now issue Real ID. If your current driver's license does not have the Real ID star, you can renew it as a Real ID at your state's DMV. Bring the required documents and ask for a Real ID.

How long does it take to get a Real ID?

Most states issue a Real ID when ready or within two to four weeks. It depends on your state and whether you explore in person or by mail. Check your state's DMV website for specific timelines. A passport takes four to six weeks for routine processing, or two to three weeks for expedited processing (with an extra fee).