St. Thomas (STT) → St. Croix Island (STX)
A reference for the Cyril E. King Airport to Henry E Rohlsen Airport route. You'll find the operators on file, the great-circle geometry, the connecting options if no nonstop fits your dates, and a short profile of each endpoint airport.
The flight from St. Thomas (STT) to St. Croix Island (STX) covers a great-circle distance of roughly 73 km (45 miles). Aircraft leave Cyril E. King Airport on an initial south heading. As domestic sectors go, this one sits in the short-haul bracket: long enough that most carriers run it as its own dedicated rotation, but short enough to fit inside a single crew duty period.
2 carriers file a direct STT to STX sector, with Cape Air and Seaborne Airlines among the operators on record. A route attracting this many carriers usually points to a city pair with both leisure and business demand, or a competitive hub-to-hub link where the airline alliances overlap on the same metal.
Operators on the STT → STX direction
Carriers with at least one scheduled rotation on this sector in the OpenFlights dataset, ranked by the number of code-shared filings.
| IATA | Airline | Country | Callsign |
|---|---|---|---|
| 9K | Cape Air | United States | CAIR |
| BB | Seaborne Airlines | United States | SEABORNE |
At well under 1,500 km this is a regional sector. Carriers typically run narrow-body aircraft from the Airbus A320 family or the Boeing 737 series, with regional jets (Embraer E-Jet, CRJ) showing up on lower-frequency rotations. Block time runs around 50m. Expect a single-aisle cabin and no real meal service. A snack and a drink is usually all you get.
If a nonstop doesn't match your dates, Miami (MIA), San Juan (SJU), and Philipsburg (SXM) show up on both ends of the network and make the most natural connecting points. The connecting-hubs grid below extends that list to the eight strongest options, ranked by each airport's overall departure activity. That ranking is a fast proxy for how many onward flights a single stop is likely to feed.
Connecting hubs
Airports that already appear on both ends of this network. They're the natural one-stop options when no nonstop matches your dates, ranked by overall departure activity.
Both endpoints sit inside Virgin Islands, so this is a domestic sector subject to local rules on baggage, identification, and security. Domestic flying often gets different tax treatment than international itineraries, so when you compare fares look at the all-in price (with domestic departure taxes included) rather than the base fare alone. See the Virgin Islands routes index for other domestic pairs.
On the day of operation, the STT to STX direction lifts off heading south, then the great-circle track curves to compensate for the Earth's rotation. The return STX to STT sector heads north out of the gate, with 2 operators on file for the inbound side. Combine the two operator lists for a full picture of the city pair's competitive landscape.
BTS domestic traffic (STT → STX, 2025)
Real 2025 passenger, freight, and departure-frequency totals for this exact non-stop segment, from the U.S. Bureau of Transportation Statistics T-100 Domestic Segment (All Carriers) database — not an OpenFlights field. Scheduled-passenger service (BTS service class F) only; all-cargo and non-scheduled service are excluded.
| Carrier code | Carrier (BTS record) | Passengers | Departures performed |
|---|---|---|---|
| 2NQ | LIMA NY Corp d/b/a Fly The Whale | 39,800 | 5,696 |
| 9K | Hyannis Air Service, Inc. dba Cape Air | 15,044 | 3,038 |
| 1QQ | City Wings Inc dba Seaflight | 5,690 | 1,056 |
| 3M | Silver Airways | 12 | 2 |
| F4 | Air Charter, Inc d/b/a Air Flamenco | 0 | 3 |
Aircraft types flown on this segment in 2025, by departures performed: Cessna 208 Caravan (5,696 departures), Cessna C-402/402A/402B (3,038 departures), Cessna C208B/Grand Caravan (1,056 departures), Pilatus Britten-Norman BN2A Trislander (2 departures), Aerospatiale/Aeritalia ATR-42 (2 departures), Pilatus Britten-Norman BN2/A Islander (1 departures). Mail carried: 0 lb. Departures scheduled vs. performed: 9,827 scheduled, 9,795 performed.
Data as of: full calendar year 2025 (all 12 months) · Source: BTS T-100 Domestic Segment (All Carriers), U.S. DOT Bureau of Transportation Statistics (public domain, U.S. government work). Carrier names and aircraft-type descriptions are BTS's own record values, not this site's. Figures reflect carrier-filed BTS reports, not real-time bookings. See the BTS domestic traffic hub and methodology for match coverage and corrections path.
Endpoints
Other routes from St. Thomas (STT)
Other destinations served from the same origin. Handy for combining trips or for finding an alternate first leg.
Other routes into St. Croix Island (STX)
Other origins that already file scheduled service into the destination airport.
Reading this route page
The operator list reflects scheduled-route filings in the OpenFlights dataset, not real-time availability. A carrier appearing here publishes a scheduled service on this sector. It isn't a live timetable, and the actual flight numbers, frequencies, and aircraft types shift season to season. For booking and current schedules, cross-reference the airline page above with the carrier's own website.
Distance here is the great-circle arc between the two airports' published coordinates. Real flight tracks wander off that line because of wind, ATC routings, oceanic crossings, and political airspace constraints. Block time is an estimate covering ground taxi, climb, cruise at typical jet speeds, and descent. Real block times shift with aircraft type, weather, and traffic, so treat the stat-strip number as a planning indicator rather than a published flight time.