Visiting the Caribbean islands, a valid passport is required. You may also require a visa, depending upon the country of issue of your passport. You must check to be sure “do I need a visa” to enter my destination country.

In 2026, whether a U.S. citizen needs a passport for the Caribbean depends entirely on the destination and the mode of travel. For U.S. Territories like Puerto Rico and the U.S. Virgin Islands (St. Thomas, St. Croix, St. John), no passport is required for direct travel from the mainland. For international Caribbean nations (e.g., Jamaica, the Bahamas, St. Lucia), a valid passport is mandatory for air travel. However, a significant exception exists for "Closed-Loop" cruises—voyages that begin and end at the same U.S. port. On these specific cruises, U.S. citizens can often travel to various Caribbean islands using only an official birth certificate and a government-issued photo ID. Despite this, travel experts in 2026 strongly recommend carrying a passport regardless of the cruise type, as it is the only document that allows for emergency air travel back to the U.S. in the event of an illness, injury, or missed ship connection at a foreign port.