The difference between a passport and a Real ID, and which one matters for what

A passport is a federal travel document issued by the U.S. State Department that proves your citizenship and identity. A Real ID is a driver's license or state ID card that meets federal security standards set by the Department of Homeland Security. They serve different purposes and are issued by different agencies.

For domestic air travel and entry to federal buildings, you need one or the other — but not both. A passport works for both. A Real ID driver's license works for both. A regular driver's license (one that does not meet Real ID standards) works for neither as of May 7, 2025. If you drive and fly domestically, you have three paths: get a Real ID driver's license, get a passport, or get both.

The choice depends on whether you travel internationally, how often you fly domestically, and whether you want to carry one document or two. This guide explains what each document is, what it costs, how long it takes to get, and which situations call for which choice.

Key Takeaways

  • A Real ID driver's license meets federal standards for domestic air travel and federal building entry; a regular driver's license no longer does as of May 7, 2025.
  • A passport works for domestic air travel, federal buildings, and international travel; a Real ID driver's license works only for domestic air travel and federal buildings.
  • Real ID driver's licenses cost between $20 and $100 depending on your state and whether you renew or upgrade an existing license; passports cost $130 to $165 for a book or card.
  • A Real ID driver's license typically takes two to six weeks; a passport book takes four to six weeks standard or one to three weeks expedited (with an extra fee).
  • If you travel internationally at all, a passport is necessary; if you only fly domestically and enter federal buildings, a Real ID driver's license is sufficient.

What a Real ID driver's license is and what it proves

A Real ID is a driver's license or state ID card that meets the security standards outlined in the Real ID Act of 2005. The federal government requires it for boarding domestic flights and entering federal buildings like courthouses and military bases. Every state now issues Real ID driver's licenses, though the card looks nearly identical to a regular license — the only visual difference is usually a small star or marking in the upper right corner.

To get a Real ID driver's license, you must visit your state's Department of Motor Vehicles in person and bring specific documents: a valid passport or birth certificate (to prove citizenship), a Social Security card or tax return (to prove your Social Security number), and two documents showing your current address (such as a utility bill or lease). The exact documents vary slightly by state. You cannot renew a Real ID online or by mail in most states — you must appear in person.

Real ID driver's licenses are valid for the same length of time as regular licenses in your state, usually five to eight years. Once you have one, you do not need to renew it more often than you would a regular license.

What a passport is and what it proves

A passport book or passport card is a federal travel document issued by the U.S. State Department that proves your U.S. citizenship and identity to foreign governments. A passport book is the standard document — a booklet about the size of a paperback novel with pages for visas and entry stamps. A passport card is a newer, wallet-sized alternative that works for land and sea travel to Canada, Mexico, Bermuda, and the Caribbean, but not for air travel to those countries or anywhere else internationally.

To get a passport, you explore through the State Department, either in person at a passport acceptance facility (often a post office, library, or courthouse) or by mail if you are renewing. For a first-time passport, you must explore in person and bring your birth certificate or naturalization papers, a government-issued photo ID, and proof of citizenship. The State Department processes standard applications in four to six weeks and expedited applications in one to three weeks (expedited processing costs an extra $60).

A passport book is valid for 10 years if you are an adult and 5 years if you are under 16. A passport card is valid for 10 years for adults and 5 years for minors. You can renew by mail if your passport is not damaged and was issued when you were 16 or older.

Cost comparison: Real ID versus passport

A Real ID driver's license costs between $20 and $100 depending on your state and whether you are upgrading an existing license or renewing one. Some states charge the same fee for a Real ID as a regular license; others charge $10 to $30 extra. A few states offer Real ID for free or at a reduced rate for certain groups. Check your state's DMV website for the exact fee.

A U.S. passport book costs $130 for adults explore for the first time (or $110 if you are renewing and explore by mail). A passport card costs $35 for adults explore for the first time (or $30 if renewing by mail). Expedited processing adds $60 to either. Passport fees are set by the federal government and do not vary by state.

If you need both a Real ID driver's license and a passport, the total cost is roughly $150 to $230, depending on your state and whether you expedite the passport. If you need only one, a Real ID is usually cheaper.

Timeline: How long each document takes

A Real ID driver's license typically takes two to six weeks from the date you explore in person at your DMV. Some states are faster; some are slower. A few states have walk-in appointments available and can issue a temporary Real ID on the spot, but this is rare. Check your state's DMV website for current wait times before you go.

A passport book takes four to six weeks for standard processing and one to three weeks for expedited processing (which costs $60 extra). If you explore in person at a passport acceptance facility, processing time starts after they receive your process — they do not issue it on the spot. Some passport acceptance facilities have limited hours or long wait times, so call ahead or check online before you visit.

If you need a document urgently, expedited passport processing is faster than a Real ID in most cases. If you need a Real ID urgently and your state offers it, some DMVs can issue a temporary Real ID valid for 30 to 60 days while you wait for the permanent card.

When you need a passport instead of a Real ID

You need a passport if you travel internationally by air, sea, or land to any country outside the United States, Canada, Mexico, Bermuda, or the Caribbean. You also need a passport if you travel by air to Canada, Mexico, or the Caribbean — a Real ID driver's license is not sufficient for air travel to those destinations, even though they are close to the U.S.

A passport is the only document that proves your citizenship to a foreign government. A Real ID driver's license proves your identity to the U.S. government but does not prove citizenship to anyone else, so it cannot be used for international travel.

If you do not travel internationally and do not plan to, a Real ID driver's license is sufficient for all domestic purposes. But if you think you might travel internationally in the next 5 to 10 years, getting a passport now is often worth it — you will have it when you need it, and you will not have to rush to get one before a trip.

When a Real ID driver's license is enough

A Real ID driver's license is sufficient if you fly domestically within the United States, enter federal buildings, or use it as your primary photo ID for everyday purposes. As of May 7, 2025, a regular driver's license no longer works for domestic air travel or federal building entry, so if you fly or need to enter a federal building, you must have either a Real ID driver's license or a passport.

A Real ID driver's license is cheaper and faster to get than a passport in most cases, and it serves as your regular driver's license at the same time. You do not need to carry two documents. If you do not travel internationally and do not plan to, a Real ID driver's license is the simpler choice.

Situations where you might want both

You might want both a Real ID driver's license and a passport if you travel internationally and also want a backup form of ID for domestic travel. Some people carry both because a passport is valid longer (10 years for adults) than a driver's license in many states (5 to 8 years), so a passport can serve as a backup if your driver's license expires or is lost.

You might also want both if you travel frequently — a passport card is small and straightforward to carry, while a Real ID driver's license is your everyday ID. Some travelers keep a passport card in their wallet and a passport book at home for international trips.

Getting both is not necessary for most people, but it is an option if your travel patterns or lifestyle make it worthwhile. The decision depends on how often you travel internationally, how often you fly domestically, and whether you want to carry one document or two.

Frequently Asked Questions

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

Yes. A passport book works for domestic air travel and federal building entry just like a Real ID driver's license does. You do not need a Real ID if you have a passport. A passport card does not work for air travel, so if you have only a passport card, you still need a Real ID driver's license or passport book for flights.

Do I need a Real ID if I have a passport?

No. A passport is sufficient for domestic air travel, federal building entry, and international travel. You do not need a Real ID driver's license if you have a passport. However, most people carry a driver's license for everyday use, so you may want a Real ID driver's license for that reason, not because it is required.

What happens if I fly domestically with a regular driver's license after May 7, 2025?

You will not be allowed to board the flight. The TSA will ask for a Real ID driver's license, passport book, passport card, military ID, or other federally accepted ID. A regular driver's license no longer meets the standard. You must have one of the accepted forms of ID to pass security.

Can I get a Real ID and a passport at the same time?

Yes, but you explore through different agencies. You explore for a Real ID at your state's DMV in person, and you explore for a passport through the State Department in person or by mail. You can start both applications at the same time, but they process separately and arrive on different schedules.

Is a passport card good enough for domestic flights?

No. A passport card is valid only for land and sea travel to Canada, Mexico, Bermuda, and the Caribbean. It does not work for domestic air travel. You need a passport book, Real ID driver's license, or other federally accepted ID for domestic flights.