✈️ Caribbean Inter-Island Flights 2026: Routes, Baggage Rules & Regional Airlines Caribbean inter-island flights connect regional hubs like San Juan, Antigua, and Providenciales to smaller islands using small turboprops and regional jets. Fares typically range from $150 to $400 round-trip, but strict 10 lb to 40 lb carry-on baggage limits and separate-ticket connection risks require […]