A U.S. passport card is used for land and sea border crossings between the United States and Canada, Mexico, Bermuda, and certain Caribbean countries, and it doubles as a wallet-sized federal ID for domestic flights, employment verification, and entry to federal buildings and military bases. It costs $30 for the application itself, a fraction of the passport book’s price, and fits in your wallet next to your driver’s license. The one thing it cannot do, under any circumstance, is get you on an international flight.1U.S. Department of State. Get a Passport Card
Land and Sea Border Crossings
The State Department designed the card for people who cross the northern or southern border regularly by car or on foot. If you commute to a job across the Canadian or Mexican border, or you drive down to Tijuana on weekends, the card handles the crossing at any staffed land port of entry. It also works at sea ports when you’re returning from Canada, Mexico, Bermuda, or a covered Caribbean destination.1U.S. Department of State. Get a Passport Card
One thing to watch: the State Department describes Caribbean coverage as “some Caribbean countries,” not the entire region. The card satisfies the Western Hemisphere Travel Initiative, which governs documents for entering the U.S. by land or sea from this hemisphere, and not every island nation falls under that framework. Check your specific destination before assuming the card alone will get you back in.2U.S. Department of State. Frequently Asked Questions about Passport Services – Section: U.S. Passport Card
Cruises
Passengers on closed-loop cruises, meaning voyages that depart from and return to the same U.S. port, can use the passport card to re-enter the country. Even so, the State Department recommends carrying a passport book on any cruise.3U.S. Department of State. Cruise Ships The reasoning is practical. If a medical emergency forces you off the ship at a foreign port, or the vessel is diverted somewhere unplanned, flying home requires a passport book. The card will not board an international flight.
An emergency passport can be issued at a U.S. embassy, usually within a business day, but you have to appear in person with identification, proof of citizenship, and Form DS-11.4Travel.State.Gov. Lost or Stolen Passport Abroad Doable, but not something you want on your plate during a medical crisis. Carrying both documents on a cruise removes the risk.
Domestic Flights and REAL ID
Since May 7, 2025, TSA has required a REAL ID-compliant driver’s license or another accepted ID at airport checkpoints for domestic flights. A standard, non-compliant license no longer gets you through.5Transportation Security Administration. Acceptable Identification at the TSA Checkpoint The passport card is REAL ID-compliant and sits on TSA’s list of accepted documents.6Travel.State.Gov. U.S. Passports and REAL ID
If you haven’t upgraded your driver’s license to a REAL ID, the passport card is a clean fix. It rides in your wallet as a backup federally accepted ID, and you can use it as your only ID for domestic flights if you’d rather leave the passport book at home.
Employment Verification (Form I-9)
The passport card appears on List A of acceptable Form I-9 documents. That means it proves both your identity and your authorization to work in the United States with a single document.7U.S. Citizenship and Immigration Services. Acceptable Documents for Verifying Employment Authorization and Identity When a new employer hands you the I-9, showing your card completes the form. Without one, you’d need to present a combination from List B and List C, typically a driver’s license plus a Social Security card.
Federal Buildings and Military Bases
Secure federal buildings and military installations that require REAL ID-compliant identification for visitor access accept the passport card. The Department of Defense has confirmed that U.S. passport cards are acceptable for entry to its installations.8Defense Logistics Agency. Real ID Standards for Military Base Access Start May 7 Federal courthouses, Social Security offices, and military bases will take the card without you having to carry a full passport book.
Where the Card Doesn’t Work
The hard limit is international air travel. You cannot fly from the U.S. to Canada on a passport card, and you cannot fly from Mexico back to the U.S. on one either. The restriction runs in both directions, for every international flight, without exception.1U.S. Department of State. Get a Passport Card
Geography is the other limit. The card doesn’t work for travel to Europe, Asia, South America, Africa, or anywhere outside the WHTI-covered destinations. Trips to London, Tokyo, or Buenos Aires by any method of transportation require a passport book.2U.S. Department of State. Frequently Asked Questions about Passport Services – Section: U.S. Passport Card
Passport Card Versus Passport Book
The choice comes down to how you travel. A passport book covers all international travel by air, land, and sea to any country. A passport card covers land and sea entries from Canada, Mexico, Bermuda, and certain Caribbean destinations, and that’s it. Fly internationally at all and you need the book.
Both documents are valid for 10 years for adults age 16 and older, and 5 years for children under 16.9U.S. Department of State. Frequently Asked Questions about Passport Services The book is a full-sized booklet with pages for visa stamps. The card is credit-card-sized, wallet-friendly, and has no visa pages, which is what makes it usable as an everyday ID.
Prices are far apart. A first-time adult passport book is $130 plus a $35 facility fee. A first-time passport card is $30 plus the same $35. Apply for both on one DS-11 form and the combined application fee is $160 plus a single $35 facility fee.10Department of State. Passport Fees For someone who crosses a land border often and also flies abroad occasionally, holding both makes sense. The card handles the routine crossings and daily ID needs, and the book waits at home for the flights.