Confirm passport validity extends at least 6 months beyond your return date.
ContextMany cruise destinations enforce the 'six-month rule': your passport must remain valid for at least 6 months past your return date, not just your departure date. Check this immediately upon booking — routine passport renewal takes 4–6 weeks, expedited takes 2–3 weeks (current times at travel.state.gov). U.S. citizens on closed-loop cruises (departing and returning to the same U.S. port) technically qualify with a birth certificate and government-issued photo ID, but a passport is strongly recommended: if you miss the ship in a foreign port, you'll need it to fly home independently.

