Cyril E. King Airport (STT) on St. Thomas in the U.S. Virgin Islands is a major Caribbean hub served by several legacy and low-cost carriers. In 2026, the list of primary airlines includes American Airlines, Delta Air Lines, United Airlines, JetBlue, and Spirit Airlines, all of which offer direct flights from major U.S. hubs like Miami, Atlanta, New York, and Fort Lauderdale. A significant addition for 2026 is Southwest Airlines, which recently launched new service to St. Thomas, making the islands more accessible for budget-conscious travelers using Rapid Rewards points. For regional travel between neighboring islands like St. Croix, Puerto Rico, or the British Virgin Islands, Cape Air and Silver Airways provide frequent "island hopper" service. Because St. Thomas is a U.S. territory, U.S. citizens do not need a passport to fly here from the mainland, contributing to high demand and frequent service from these major carriers, particularly during the peak winter tourism season.