Puerto Rico

federal immigration rules. U.S. citizens traveling directly from another U.S. jurisdiction do not need a passport, but adults flying still need TSA-accepted identification and state IDs must meet current REAL ID rules.

Other travelers need the same lawful U.S. admission, visa, or ESTA status that applies to a mainland U.S. trip. The currency is the U.S.

dollar. Cards are widely accepted, but carry limited cash for parking, beach services, kiosks, tips, and vendors whose only electronic option is ATH Móvil. Most visitors cannot register for ATH Móvil because it requires a participating ATH bank or credit-union debit card. Uber is strongest around metropolitan San Juan; an app service-area map does not guarantee a driver for a remote return or early flight.

Rent a car or prearrange transport for island exploration. Vieques and Culebra ferries leave from Ceiba. Book both directions through the official Puerto Rico Ferry website or City Experiences app, recheck service alerts, and plan local transport on the islands because mainland rental cars cannot be ticketed onto the ferry. Hurricane season runs from June 1 through November 30.

Monitor NWS San Juan for storms, flooding, heat, and rip-current risk, never enter floodwater, and obey beach flags. Power and water interruptions can occur, so confirm backup arrangements with the accommodation. Use mosquito repellent because dengue and Zika are present. Before flying to the mainland, allow time for the required USDA agricultural inspection of food, plants, and related items.