Verify before you sail. Cruise, route and destination details can change. The official sources below were checked on August 25, 2026.
Closed-loop has a specific meaning
CBP describes it as beginning and ending at the same U.S. port within the Western Hemisphere.
Emergency travel matters
A birth certificate cannot replace a passport for an unexpected international flight home.
What to verify for your sailing
- Your exact cruise line and ship
- Departure country and embarkation port
- Your citizenship or travel-document status where relevant
- Any destination-specific restrictions
- The latest policy immediately before travel
Official sources
- U.S. CBP cruise passport FAQ — closed-loop cruise documentation
- U.S. CBP international travel documents — land and sea entry documents
- Royal Caribbean travel documents — boarding-document guidance
Editorial responsibility: M.K. Hsu for Horizon Travel Guide. Cruise-line, itinerary, port and security rules can change; official current policy controls.How CruiseGuide reviews information.