Cyril E. King Airport (IATA: STT, ICAO: TIST, FAA LID: STT) is a public airport located two miles (3 km) west of the central business district in the town of Charlotte Amalie on the island of St. Thomas in the United States Virgin Islands.

Although passports are not required for U.S. citizens who are visiting the U.S. Virgin Islands from other U.S. jurisdictions, all passengers bound for the continental United States and Puerto Rico must pass through U.S. Customs and Border Protection screening before boarding their flight.

[6] In 1940, the US Navy ordered a major expansion of the base, which saw the extension and paving of the runways along with construction work to accommodate a VMS-3 observation squadron.

[6][7] Once World War II began, VMS-3 patrolled the surrounding areas for enemy submarines, operating the J2F-A Duck, Vought SU-2 Corsair, OS2N-1 Kingfisher, and Douglas SBD Dauntless.

Trans Caribbean, Pan Am and Caribair were all operating jet service into St. Thomas by the late 1960s with the airport runway only being 4,658 feet (1,420 m) in length at the time.

[17] By 1994, American was operating wide body Airbus A300-600R jets into St. Thomas with nonstop service from Miami and San Juan with direct one stop A300 flights from Chicago O'Hare Airport, Orlando and Philadelphia and was also flying nonstop Boeing 757-200 service from New York Kennedy Airport.

For the 12-month period ending September 30, 2017, the airport had 61,255 aircraft operations, an average of 167 per day: 58% air taxi, 14% scheduled commercial, 27% general aviation and 1% military.

Execujet Flight Services and St. Thomas Jet Center, on the north side of the runway, handle private aviation.

Arriving passengers from the United States and Puerto Rico over the age of 18 are greeted with complimentary samples of Cruzan Rum.

Plans to expand the Cyril E. King Airport terminal include a new departure lounge on the second floor and the installation of jet bridges.

[35][36][37][38] In 2023, the FAA announced $12.2 million in grants, for rehabilitating Taxiway A to maintain the structural integrity of the pavement and to minimize foreign object debris.

[40] On February 8, 2020, Dolphin Water Taxi opened new facilities at the Cyril E. King Airport baggage claim east of the Tropic Tours window as well as the Red Hook Urman Victor Fredericks Marine Terminal.