What Documents Do I Need for Domestic vs. International Travel?

Posted on Wednesday, February 11, 2026
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by The Association of Mature American Citizens
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Ready to embark on the trip of a lifetime? Here’s all you need to know about what documents to bring, whether you’re staying in the United States or traveling internationally! Bon voyage!

Domestic

Air Travel

For passengers 18 and older, an acceptable government-issued photo ID must be shown to go through airport security. Acceptable documents include:

Don’t have any of these? If you don’t have a REAL ID or an acceptable ID, some airports may still offer an alternative verification process (like TSA ConfirmID), but that may involve extra fees and delays.

Tip: Check passport expiration well ahead of time: Many countries won’t admit travelers if the passport expires within 6 months of the return date.

Land Travel

For travel by car, train, or bus, you generally only need a government-issued photo ID (driver’s license or passport) if ID is requested, but TSA rules strictly apply to commercial air travel.

Cruises

(Domestic applies to cruises that start and end at the same U.S. port, often called “closed-loop cruises” — common for Alaska, Hawaii, and some coastal routes.)

For U.S. citizens, most domestic cruises allow one of the following:

Option 1: Passport (Recommended)

Option 2: Passport-Free (Allowed on Many Closed-Loop Cruises)

PLEASE NOTE: This option is allowed on many domestic/closed-loop cruises, but not all. Cruise lines set their own rules. Always check the cruise line’s documentation page before booking.

Important Notes for All Domestic Travel:

International

Passport

U.S. citizens must have a valid passport book to depart and re-enter the U.S. — even if traveling to Canada, Mexico, the Caribbean, or overseas. Passports should be valid at least 3–6 months beyond your planned return date for many countries. Check your destination’s entry rules just to be safe!

Visas & Entry Documents

Many countries require a visa or electronic travel authorization (ETA) before arrival. Requirements vary widely by destination and nationality. Some countries require proof of onward travel (return ticket) or proof of funds. These are typically for longer stays, not shorter vacation travel.

Additional Documents Seniors Should Carry!

Highly recommended (even when not required):

REMEMBER TO: Always check the Travel Advisory of the country you are visiting for all requirements, including tourist visas, vaccinations, valid passport requirements, allowed currency upon entrance and exit, and more pertinent information.

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