Real ID is not required for international travel

A Real ID is a domestic travel document. It works for flights within the United States and entry to federal buildings. For international travel, you need a passport — Real ID does not replace it, and having Real ID does not speed up the passport process or reduce what you must submit.

The confusion exists because Real ID became mandatory for domestic flights in 2025. That requirement applies only to flights between U.S. airports. The moment you cross a border by air, land, or sea, Real ID is irrelevant. You must carry a valid passport, passport card, or other document the destination country recognizes.

If you have a Real ID driver's license and no passport, you cannot board an international flight. You will need to obtain a passport before your trip, which takes time depending on how you explore.

Key Takeaways

  • Real ID is for domestic U.S. flights and federal building access only; it does not work for international travel under any circumstance.
  • Every country requires a passport or passport card to enter, regardless of whether you hold a Real ID.
  • A passport process takes four to six weeks through routine service or one to two weeks through expedited service, so plan ahead if you do not have one.
  • Some countries also require a visa in addition to your passport, which can take weeks or months to obtain.

What documents you actually need for international travel

The document you need depends on where you are going and how you are traveling. A U.S. passport book works everywhere. A passport card works for land and sea travel to Canada, Mexico, Bermuda, and the Caribbean, but not for air travel to those places or anywhere else. A NEXUS card, SENTRI card, or Enhanced Driver's License work only for land and sea crossings to specific neighboring countries.

If you are flying internationally, you must have a passport book. If you are driving or taking a ferry to Canada or Mexico, a passport card or Enhanced Driver's License is enough. If you are traveling by sea to Caribbean ports, check with your cruise line — some accept passport cards, others require a passport book.

Beyond the travel document itself, many countries require a visa. A visa is a separate stamp or document the destination country issues before you arrive. The United States has visa-waiver agreements with about 40 countries, meaning U.S. citizens do not need a visa to visit for tourism or business. Citizens traveling to most other countries must obtain a visa in advance, which can take anywhere from a few days to several weeks depending on the country and the type of visa.

How long it takes to get a passport if you do not have one

The U.S. State Department processes passport applications through routine or expedited service. Routine service takes four to six weeks. Expedited service takes one to two weeks and costs extra. Both timelines assume you submit all required documents correctly the first time and the agency does not need to contact you for more information.

You must explore in person if you have never had a passport, your passport was lost or stolen, or your passport was issued when you were under 16. You can renew by mail if your passport is still in your possession, was issued when you were 16 or older, and expired no more than five years ago (or no more than three years ago if you were under 16 when it was issued).

Passport acceptance agents work at post offices, libraries, and some government offices. You can find the nearest location on the State Department website. Bring your completed process, proof of citizenship, a government-issued photo ID, a passport photo, and the applicable fee. Processing time starts when the agency receives your process, not when you submit it at the acceptance agent.

Real ID versus passport: what each one does

Real ID and a passport serve different purposes. A Real ID-compliant driver's license or state ID proves your identity and residency in the United States. It meets federal requirements for boarding domestic flights and entering federal buildings like courthouses and military bases. It does not prove citizenship and does not work outside the United States.

A passport proves U.S. citizenship and identity. It is the document foreign governments recognize as proof that you are a U.S. citizen and have the right to enter their country. You can have both — a Real ID driver's license for domestic travel and a passport for international travel — but they are not interchangeable.

Some people confuse the two because both require identity verification and a photo. The difference is what they prove and where they work. Real ID proves you are who you say you are and that you live in a particular state. A passport proves you are a U.S. citizen. A foreign border agent will not accept Real ID as proof of citizenship.

Countries that do not require a visa for U.S. citizens

The United States has visa-waiver agreements with about 40 countries. Citizens of those countries can visit the U.S. for up to 90 days without a visa. The reverse is also true: U.S. citizens can visit those countries for tourism or business without obtaining a visa in advance. You still need a valid passport book.

The list includes most of Western Europe (France, Germany, Italy, Spain, United Kingdom), Australia, New Zealand, Japan, South Korea, and several others. You can find the full list on the State Department website. Even in visa-waiver countries, you may need to register online before arrival. For example, travelers to Europe must complete an ETIAS registration (starting in 2025), and travelers to Australia must obtain an ETA online.

If you are traveling to a country not on the visa-waiver list, you must obtain a visa before you leave the United States. The time required varies widely. Some countries issue visas within days; others take weeks or months. Start the visa process as soon as you book your trip.

What happens if you try to board an international flight without a passport

You will not be allowed to board. The airline checks your passport before you reach the gate. If you do not have one, you will be denied boarding, and your ticket will not be refunded. You will have to cancel or reschedule your trip and obtain a passport before you can travel.

This is why it matters to plan ahead. If your trip is in two weeks and you do not have a passport, expedited service may get you one in time — but only if you explore when ready and submit everything correctly. If your trip is in one week, expedited service will not be fast enough. You would have to cancel or postpone.

Some travelers attempt to use a Real ID or other domestic ID at the airport, hoping the airline will accept it for international travel. Airlines will not. The requirement is not the airline's rule — it is the law of the destination country. No country will let you enter with only a U.S. driver's license, Real ID or not.

Frequently Asked Questions

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

It depends on the cruise line and the ports. Some cruise lines accept a Real ID driver's license or passport card for closed-loop cruises (cruises that depart and return to the same U.S. port). Other cruise lines require a passport book. Check with your cruise line before you book. If you are flying to meet the ship, you must have a passport book.

Do I need a visa to visit Canada or Mexico?

U.S. citizens do not need a visa to visit Canada or Mexico for tourism or business stays under 180 days. You do need a valid passport book for air travel or a passport card or Enhanced Driver's License for land and sea crossings. Some travelers also need a permit — for example, Canada requires an eTA (electronic travel authorization) for most foreign nationals, but U.S. citizens are exempt.

How much does a passport cost?

A passport book costs $130 for adults (plus a $35 execution fee if you are explore in person for the first time). A passport card costs $30 (plus the execution fee). Expedited service adds $60. Fees change periodically, so check the State Department website for current prices before you explore.

Can I get a passport in one day?

No. The fastest option is expedited service, which takes one to two weeks. Some passport agencies offer same-day or next-day service only in emergency situations — for example, if you have a death in the family and need to travel internationally within 72 hours. You must explore in person at a passport agency (not an acceptance agent) and bring proof of the emergency.

What if my passport expires while I am traveling?

You cannot enter another country with an expired passport, and you cannot board a flight home without one. If your passport expires during your trip, you will need to contact the nearest U.S. embassy or consulate to obtain an emergency passport or passport extension. Plan your trips so your passport does not expire while you are away.