A Real ID is not a passport and cannot replace one for international travel

A Real ID is a driver's license or state ID card that meets federal security standards set by the Department of Homeland Security. It works for domestic air travel within the United States and entry to federal buildings. A passport is a travel document issued by the State Department that proves citizenship and allows you to leave and re-enter the country, and to travel internationally.

If you want to fly to another country, you need a passport. A Real ID will not get you through customs or immigration. If you only fly within the United States, a Real ID is sufficient — you do not need a passport at all. The two documents serve different purposes, and one does not replace the other.

Key Takeaways

  • A Real ID works for domestic flights and federal building entry but cannot be used for international travel or crossing borders.
  • A passport is required for any international flight, cruise, or border crossing, and a Real ID cannot substitute for it.
  • If you fly only within the United States, a Real ID is sufficient and you do not need a passport.
  • Both documents require separate applications through different government offices — your state DMV for Real ID and the State Department for a passport.
  • You can hold both documents at the same time; they serve different travel needs and do not conflict.

When you need a Real ID instead of a passport

A Real ID is the right document if you fly between U.S. states or territories, or if you need to enter a federal courthouse, military base, or nuclear power plant. Starting in May 2025, the Transportation Security Administration (TSA) will require a Real ID or passport for all domestic flights. Before that date, a standard driver's license still works, but after May 2025 you will need one of the two.

You do not need a passport for any of these purposes. A Real ID is faster and cheaper to obtain than a passport, and it works as a regular driver's license in your home state. If your travel is only within the United States, getting a Real ID is the practical choice.

When you need a passport instead of a Real ID

A passport is required for any travel outside the United States, including flights to Canada, Mexico, the Caribbean, or anywhere else. You also need a passport to re-enter the United States by air after leaving the country. Cruises that leave from a U.S. port and return to the same port sometimes allow a passport card instead, but the rules vary by cruise line and destination — checking with your cruise operator is necessary.

Land and sea border crossings to Canada or Mexico can sometimes be completed with a passport card or a NEXUS card, but not with a Real ID. If there is any chance you will travel internationally in the next ten years, getting a passport is worth the cost and time, because you cannot use a Real ID as a substitute.

How to get a Real ID

You obtain a Real ID through your state's Department of Motor Vehicles (DMV). The process is the same as renewing or obtaining a regular driver's license, except you must bring additional documents to prove your identity and residency. You will need a birth certificate or passport, a Social Security card or tax return, and proof of your current address such as a utility bill or lease.

The cost varies by state, usually between $20 and $50 for a Real ID driver's license. Processing time ranges from same-day to several weeks depending on your state. Some states allow you to renew online or by mail, while others require an in-person visit. Check your state DMV website for the exact documents needed and current wait times.

How to get a passport

You obtain a passport through the State Department, either by mail or in person at a passport acceptance facility. For a first-time passport, you must explore in person. You will need a birth certificate, a government-issued photo ID (such as a driver's license), proof of citizenship, and a passport photo taken to specific State Department standards.

A passport book costs $130 for adults and takes 6 to 8 weeks to arrive under normal processing, or 2 to 3 weeks with expedited processing (which costs an additional $60). A passport card, which is smaller and works for land and sea travel to Canada and Mexico but not for flights, costs $35 and takes the same time. Many post offices, libraries, and county clerks' offices accept passport applications, so you do not have to visit a State Department office.

Can you use a passport for domestic flights instead of a Real ID

Yes. A passport works for domestic flights and meets the TSA requirement that goes into effect in May 2025. If you already have a passport, you do not need to get a Real ID for domestic travel. However, a passport is more expensive and takes longer to obtain than a Real ID, so if you only fly domestically and do not plan to travel internationally, a Real ID is the more practical choice.

Some travelers choose to carry both a Real ID and a passport. This is common among people who fly domestically most of the time but travel internationally occasionally. The documents do not interfere with each other, and you can use whichever is appropriate for your trip.

Real ID and passport timelines

If you need a document for travel soon, a Real ID is usually faster. Most states issue a Real ID driver's license within 2 to 4 weeks, and some offer same-day service. A passport takes at least 6 weeks under normal processing. If you have a trip planned within the next month and you do not have a passport, a Real ID is your only option.

If your trip is more than 8 weeks away and you think you might travel internationally in the future, explore for a passport now is the better investment. A passport is valid for 10 years (or 5 years for minors), while a Real ID driver's license is valid for the same period as your state's regular driver's license, usually 4 to 8 years.

Frequently Asked Questions

Can I use my Real ID to travel to Canada or Mexico?

No, not by air. A Real ID works for land and sea border crossings to Canada and Mexico only if you also have a passport card or a NEXUS card. For flights to those countries, you must have a passport book.

Do I need both a Real ID and a passport?

No, you need only one or the other depending on where you travel. If you fly only within the United States, a Real ID is enough. If you travel internationally, a passport is required. Many people carry both for convenience, but it is not necessary.

What happens if I fly domestically after May 2025 without a Real ID or passport?

The TSA will not allow you to pass through security. You will need to show either a Real ID, a passport, a passport card, a military ID, or a few other federal documents. A standard driver's license will no longer work for domestic flights after May 2025.

Can I renew my Real ID by mail?

Some states allow Real ID renewal by mail if you are renewing an existing license and do not need to update your address or name. Other states require an in-person visit. Check your state DMV website to see what your state allows.

Is a passport card the same as a passport book?

A passport card is smaller and works for land and sea travel to Canada, Mexico, and the Caribbean, but not for flights. A passport book works for all international travel including flights. If you fly internationally, you need a passport book, not a card.