Research › Caribbean Air Connectivity Index 2027 › St Croix
Ranked #25 of 28
St Croix
Printed from https://destinito.com/research/caribbean-air-connectivity/st-croix. The online page is the current version and carries any corrections.
- Weekly departures
- 92
- Direct destinations
- 4
- Airlines
- 2
- Estimated weekly seats
- 3,098
St Croix
| Weekly departures | Weekly seats | Destinations | Airlines | Largest carrier share |
|---|---|---|---|---|
| 92 | 3,098 | 4 | 2 | 77.3% |
St Croix ranks 25th overall (23.2) and 25th regionally (31.9). It is a spoke: it serves 3 Caribbean islands, and St Thomas takes 65.4% of its Caribbean departures.
The United States takes 77.3% of seats and the Caribbean 22.7%. Its four routes are flown by two airlines: St Thomas, with 51 departures and 459 seats; Puerto Rico (San Juan), with 25 departures; and Nevis, with 2 departures, all on Cape Air (9K); and Miami (MIA), with 14 departures and 2,396 seats on American Airlines (AA).
American Airlines holds 77.3% of seats (HHI 6,495), the highest concentration outside the shuttle markets, and no destination (0.0%) is served by more than one airline. For 78 of 92 departures, seats were estimated from an airline-level default, so seat figures here are less precise than for most islands. In full-year 2025 data, departing domestic US flights were 83.3% full and departing domestic flights to St Thomas and Puerto Rico 64.4%.
Score and rank
The connectivity score is an index on 0–100 built from departures, destinations, airlines, hub links and seats; the regional score uses the Caribbean subset only. Both are defined in the methodology. Not a percentage — an island does not have "96% connectivity".
| Measure | Score | Rank |
|---|---|---|
| Overall | 23.2 | #25 of 28 |
| Regional (Caribbean only) | 31.9 | #25 of 28 |
Destinations and airlines
St Croix has 3 direct Caribbean destinations and 1 beyond the region, with 78 of its 92 weekly departures staying inside the Caribbean. It has direct service to 1 of the index's connecting hubs.
| Airline | Weekly departures | Destinations |
|---|---|---|
| Cape Air | 78 | 3 |
| American | 14 | 1 |
Market mix
Estimated weekly seats by the region a flight goes to. Seats are estimated from aircraft type, not booked or flown.
| Market | Estimated weekly seats | Share |
|---|---|---|
| North America | 2,396 | 77.3% |
| Caribbean | 702 | 22.7% |
Resilience
How exposed this island's connectivity is to one airline or one route stopping. All three figures are derived from the route table below, so they can be checked against it.
| Carrier concentration (HHI on seats) | 6,495 of 10,000 — higher is more concentrated |
|---|---|
| Largest carrier by seats | American at 77.3% of seats |
| Destinations served by 2+ airlines | 0 of 4 (0.0%) |
| Most-served Caribbean destination | STT, carrying 65.4% of Caribbean departures |
Gateway reach
Long-haul arrivals at the cluster gateway that connect onward to St Croix within the same day, with the best total journey time. Only islands in a gateway cluster have this.
| From | Via | Arrivals in week | Connecting | Best total hours |
|---|---|---|---|---|
| BOG | SJU | 10 | 10 | 5.4 |
| MCO | SJU | 129 | 55 | 5.4 |
| MIA | SJU | 55 | 31 | 5.4 |
| FLL | SJU | 34 | 29 | 5.4 |
| LAL | SJU | 4 | 3 | 5.4 |
| TPA | SJU | 28 | 9 | 5.5 |
| JAX | SJU | 7 | 7 | 5.5 |
| ATL | SJU | 33 | 26 | 6.0 |
| ORF | SJU | 4 | 4 | 6.2 |
| PTY | SJU | 14 | 7 | 6.3 |
| JFK | SJU | 41 | 27 | 6.3 |
| EWR | SJU | 29 | 21 | 6.4 |
| PHL | SJU | 36 | 21 | 6.8 |
| MDE | SJU | 12 | 5 | 7.1 |
| ORD | SJU | 15 | 14 | 7.2 |
| BOS | SJU | 20 | 14 | 7.4 |
| IAD | SJU | 8 | 7 | 7.6 |
| DTW | SJU | 1 | 1 | 7.6 |
| BWI | SJU | 14 | 5 | 7.9 |
| BUF | SJU | 4 | 4 | 8.0 |
| YYZ | SJU | 1 | 1 | 8.0 |
| BDL | SJU | 14 | 7 | 8.3 |
| IAH | SJU | 14 | 7 | 8.4 |
| HPN | SJU | 5 | 5 | 8.8 |
| DFW | SJU | 12 | 7 | 9.1 |
| HVN | SJU | 4 | 2 | 9.3 |
| MSP | SJU | 2 | 2 | 9.6 |
| MAD | SJU | 11 | 7 | 12.1 |
| CLT | SJU | 14 | 14 | — |
| USA | SJU | 2 | 2 | — |
Load factors
Actual passengers against actual seats, from Eurostat (2024) and BTS T-100 (2025). Monthly and historical: these do not describe the reference week. Route-months the source reports inconsistently are excluded, so every figure here is publishable.
| Source | Direction | Market | Months | Load factor |
|---|---|---|---|---|
| T100D | Inbound | Caribbean | 12 | 64.2% |
| T100D | Inbound | North America | 12 | 82.8% |
| T100D | Outbound | Caribbean | 12 | 64.4% |
| T100D | Outbound | North America | 12 | 83.3% |
| T100I | Inbound | Caribbean | 12 | 49.1% |
| T100I | Outbound | Caribbean | 12 | 64.3% |
Low season against peak
Peak week pending. This edition measures the week of 19 October 2026 only, and that week is an early shoulder week rather than the bottom of the season — some winter services start in October and others in November and December. The peak week is collected separately, and no low-versus-peak comparison is shown until it exists.
Routes
Every scheduled departure in the reference week, grouped by destination and airline. Seats are estimated; see the methodology for how, and for what "estimated" excludes.
Within the Caribbean
| From | To | Airline | Weekly departures | Est. weekly seats |
|---|---|---|---|---|
| STX | STT | Cape Air | 51 | 459 |
| STX | SJU | Cape Air | 25 | 225 |
| STX | NEV | Cape Air | 2 | 18 |
Beyond the region
| From | To | Airline | Weekly departures | Est. weekly seats |
|---|---|---|---|---|
| STX | MIA | American | 14 | 2,396 |
Compare
Back to the full 28-island table to see where St Croix sits against the rest.
