Can I use Puerto Rico to avoid international flight restrictions?

Yes, flying US to Puerto Rico counts as domestic travel. Only your onward flights to other Caribbean islands are international, which can simplify COVID testing requirements and travel insurance.

Which airlines have the best Caribbean networks from San Juan?

American Airlines has the most Caribbean destinations from San Juan. Cape Air serves the smallest islands. JetBlue has good connections to larger islands like Barbados and Jamaica.

Is it cheaper to book everything together or separately?

Book US-Puerto Rico separately from Caribbean legs. Airlines rarely offer good deals on complex multi-island routes. You'll have more flexibility and often better prices booking each segment individually.

How many days should I stay in Puerto Rico itself?

Plan at least 2-3 days in Puerto Rico to justify the hub strategy. One day for Old San Juan, one for beaches, one buffer day for flight delays. This also breaks up travel fatigue from island hopping.

How to Book Flights to Puerto Rico as Your Caribbean Hub

Book flights to San Juan (SJU) from major US cities with no passport required for Americans. Use Puerto Rico as a base to island-hop via Cape Air, Seaborne Airlines, or budget Caribbean carriers. Book US-Puerto Rico flights 6-8 weeks ahead, inter-Caribbean flights 2-3 weeks ahead.

Choose San Juan as your main airport. Luis Muñoz Marín International Airport (SJU) in San Juan has the most flight options and connections. Avoid Aguadilla (BQN) unless you're staying in western Puerto Rico — fewer onward Caribbean options.
Book your US-Puerto Rico flight first. Major airlines fly direct from Miami (2.5 hours), New York (3.5 hours), Atlanta (3 hours), and Orlando (2.5 hours). JetBlue, American, Delta, and Southwest have the most options. Book 6-8 weeks ahead for best prices.
Map your Caribbean island-hopping route. From San Juan, you can reach St. Thomas/St. John (30 minutes), Barbados (1.5 hours), Dominican Republic (1 hour), and most Caribbean islands within 2 hours. Plan your route in advance to book connecting flights efficiently.
Book inter-Caribbean flights strategically. Cape Air connects to smaller islands like Tortola and St. Barts. Seaborne Airlines flies seaplanes to St. Thomas and St. Croix. LIAT, Caribbean Airlines, and InterCaribbean serve larger islands. Book these 2-3 weeks ahead — they fill up fast.
Consider ferry connections. From San Juan, take ferries to Vieques (1 hour, $2) and Culebra (1.5 hours, $2.50). From nearby St. Thomas, ferries connect to British Virgin Islands. Factor ferry schedules into your flight timing.
Build in buffer time. Allow 3-4 hours minimum between your US arrival and any same-day Caribbean connection. Weather delays are common in the Caribbean. Consider spending at least one night in San Juan between connections.

Can I use Puerto Rico to avoid international flight restrictions?: Yes, flying US to Puerto Rico counts as domestic travel. Only your onward flights to other Caribbean islands are international, which can simplify COVID testing requirements and travel insurance.
Which airlines have the best Caribbean networks from San Juan?: American Airlines has the most Caribbean destinations from San Juan. Cape Air serves the smallest islands. JetBlue has good connections to larger islands like Barbados and Jamaica.
Is it cheaper to book everything together or separately?: Book US-Puerto Rico separately from Caribbean legs. Airlines rarely offer good deals on complex multi-island routes. You'll have more flexibility and often better prices booking each segment individually.
How many days should I stay in Puerto Rico itself?: Plan at least 2-3 days in Puerto Rico to justify the hub strategy. One day for Old San Juan, one for beaches, one buffer day for flight delays. This also breaks up travel fatigue from island hopping.