Seaborne Airlines
A scheduled airline listed in Switzerland, operating a compact Caribbean network with De Havilland Canada DHC-6 Twin Otter aircraft.
About Seaborne Airlines
Seaborne Airlines is identified as a scheduled carrier with the IATA code BB and ICAO code BBB, operating under the legal name Balair and listed with its headquarters in Switzerland. The available identity details do not establish a reliable founding year or current ownership structure, so travellers should confirm the operating carrier shown on their booking before departure, particularly where another airline’s name appears on the itinerary.
The airline serves 3 destinations across 2 countries through a network of 8 routes. Its busiest departure point by route count is Saint Thomas, followed by Saint Croix and San Juan. These links form a tightly focused Caribbean operation connecting Puerto Rico with the United States Virgin Islands, where short overwater sectors provide practical connections between major island gateways.
The aircraft type associated with the operation is the De Havilland Canada DHC-6 Twin Otter, a rugged twin-turboprop widely suited to short regional flights and airports with limited infrastructure. Flights on this aircraft generally use a compact, single-cabin layout rather than the multiple service classes offered by large mainline airlines. Travellers should expect limited overhead storage and a simpler onboard experience.
Seaborne Airlines is not identified as a member of Star Alliance, SkyTeam or Oneworld. A current proprietary frequent-flyer programme cannot be confirmed, so passengers should not assume that flights will earn miles or provide elite benefits. Any earning or redemption opportunity would depend on the operating carrier, fare rules and partnerships displayed during booking.
The network’s main strength is its direct connectivity among Saint Thomas, Saint Croix and San Juan, which can reduce the need for lengthy mainland connections when travelling between the islands. The trade-off is that a very small regional network offers fewer alternative departures when weather, maintenance or operational disruption occurs. Short turboprop flights may also have stricter practical limits on cabin baggage than larger aircraft, making advance planning worthwhile.
Good to know
Flying with Seaborne Airlines — what to expect
Compact Turboprop Cabin
The DHC-6 Twin Otter has a smaller cabin and less storage than a mainline jet. Pack lightly and be prepared for larger cabin bags to be placed in the aircraft’s hold.
Confirm Your Operator
Check the operating-carrier name and flight details on your confirmation, as the name displayed by a booking site may differ from the carrier operating the aircraft.
Allow Connection Time
Leave a generous margin when connecting through San Juan, Saint Thomas or Saint Croix, especially if separate tickets or immigration and baggage collection are involved.
Weather Can Matter
Caribbean weather can affect short inter-island services. Monitor the flight before leaving for the airport and keep essential medication and documents in a small personal bag.
Check Baggage Rules
Baggage limits can vary by fare and operating arrangement, while small aircraft may impose additional handling restrictions. Review the allowance stated on the ticket before travelling.
Network overview
Where Seaborne Airlines flies
Seaborne Airlines operates 8 routes to 3 destinations across 2 countries, its longest sector reaching San Juan to Saint Croix (151 km nonstop).
Destinations served
Cities Seaborne Airlines flies to, most-served first.
Main hubs
Busiest departure bases, by route count.
Fleet
Aircraft types on record for these routes.
Longest nonstop route
San Juan → Saint Croix
151 km · SJU → STX
The longest sector in the Seaborne Airlines network, measured as the great-circle distance between the two airports.
Route data · TravelPayouts route data · updated 2026-07
Route network
Popular routes operated by Seaborne Airlines
Notable destinations on Seaborne Airlines's network.
BBSaint CroixdirectBBSaint ThomasdirectBBSan JuandirectDestination list is indicative of Seaborne Airlines's network; see the airline's official route map for its complete, current schedule.
More from Switzerland
Other airlines based in Switzerland
FAQ
Seaborne Airlines — frequently asked questions
Quick answers to the details travellers usually check first, from codes and locations to the practical basics that help with planning.
8 common questions
- The longest route is San Juan to Saint Croix, about 151 km nonstop.
- Seaborne Airlines serves exactly 3 destinations across 2 countries, operating 8 routes.
- Seaborne Airlines flies among Saint Thomas, Saint Croix and San Juan, linking the United States Virgin Islands with Puerto Rico.
- Saint Thomas is Seaborne Airlines's busiest departure hub by route count. Saint Croix and San Juan are its other principal departure points.
- The applicable allowance should be checked on the ticket or with the operating carrier because small Twin Otter aircraft have limited cabin storage. Bags accepted on larger jets may need to be checked or placed in the hold.
- Originfacts compares live fares from hundreds of airlines and travel agencies via its partner Travelpayouts. Originfacts never adds a fee.
- The busiest departure points by route count are Saint Thomas, Saint Croix and San Juan, in that order.
- Prices are generally most competitive when booked early and outside major holidays or peak Caribbean travel periods. Compare nearby dates because availability on a small regional network can change quickly.