Originfacts

Airline guide

Seaborne Airlines logo

Seaborne AirlinesIATA code BB

seaborneairlines.com(official website, opens in a new tab)

Baggage allowances, fare rules, check-in cut-offs and contact details for Seaborne Airlines. Policy figures are read from Seaborne Airlines’s own published pages and each one shows where it came from and when we checked it.

Home country
United States
Busiest markets
Saint Thomas, Saint Croix, San Juan
By route count · route data Jul 2026
Destinations
3 in 2 countries
Route data Jul 2026
4 of 7 sections verified· checked 4 Sep 2026 – 5 Oct 20261 from route data3 not yet verifiedHow we check

Seaborne Airlines at a glance

Seaborne Airlines carry-on baggage allowance

Verified 4 Sep 2026

Source: seaborneairlines.com/contract-of-carriage (opens in a new tab)

Personal item
A personal item is a purse, briefcase, laptop bag or similar item such as a tote that does not exceed 37 inches. A carry-on bag that does not meet the size or weight restrictions is treated as a checked bag and charged.

Seaborne Airlines checked baggage allowance

Not yet verified

Checked allowances differ by route band and cabin, and none have been verified against this airline’s published conditions of carriage yet.

Still to check: Economy checked allowance.

Check directly:Seaborne Airlines website (opens in a new tab)Conditions of carriage (opens in a new tab) (link from Duffel reference data, 24 Aug 2026)

What Seaborne Airlines’s cheapest fare includes

Not yet verified

Fare-tier inclusions have not been verified against the airline’s published fare conditions.

Still to check: Lowest fare, Seat selection, Changes and cancellations.

Check directly:Seaborne Airlines website (opens in a new tab)Conditions of carriage (opens in a new tab) (link from Duffel reference data, 24 Aug 2026)

Seaborne Airlines cabins and aircraft

Not yet verified

Cabin names, seat options and onboard details have not been verified against the airline’s published pages yet.

Still to check: Seat options, Reserved or random, Family seating.

Check directly:Seaborne Airlines website (opens in a new tab)Conditions of carriage (opens in a new tab) (link from Duffel reference data, 24 Aug 2026)

If your Seaborne Airlines flight is delayed or cancelled

Verified 5 Oct 2026

Source: seaborneairlines.com/contract-of-carriage (opens in a new tab)

Seaborne's contract of carriage says schedules are not guaranteed and it accepts no liability for missed connections.

Rebooking
Whenever Seaborne cancels or otherwise fails to operate a scheduled flight, at your request it will either carry you on another Seaborne flight with space available at no additional charge, or give you a full refund under its refund policies.
Refund
Involuntary refund (Seaborne fails to operate on schedule, including Force Majeure events, or refuses to transport you): if no part of the ticket has been used, the fare and charges you paid; if part has been used, the lowest applicable direct one-way fare (or 50% of the round-trip fare on discounted round/circle/open-jaw tickets) from the point of termination to your destination, less the same rate of discount applied to the original fare.
Onboard delay care
During extraordinary, very lengthy onboard delays, Seaborne will make every reasonable effort to meet essential needs such as snacks, water, restroom facilities and basic medical assistance.

Seaborne Airlines check-in times and airport cut-offs

Verified 4 Sep 2026

Source: seaborneairlines.com/contract-of-carriage (opens in a new tab)

Flight close
Flights close 30 minutes prior to departure.
Bag cutoff
Items presented to be checked as baggage less than forty-five (45) minutes before scheduled departure may be refused.

How to contact Seaborne Airlines

Verified 4 Sep 2026 – 5 Oct 2026
Conditions of carriage
seaborneairlines.com/contract-of-carriage (opens in a new tab)
Verified 4 Sep 2026seaborneairlines.com (opens in a new tab)
Customer service phone
+1 787 946 8749
Verified 5 Oct 2026seaborneairlines.com (opens in a new tab)

Where Seaborne Airlines flies

Route data · Jul 2026

Source: Originfacts route-network dataset, built from TravelPayouts route data (updated 2026-07). Not verified by hand.

We track 8 Seaborne Airlines routes serving 3 destinations across 2 countries.

Destinations
3
Countries
2
Routes tracked
8
Longest route
151 km

Busiest markets by route count

  1. Saint Thomas3 routes
  2. Saint Croix3 routes
  3. San Juan2 routes

A market may include more than one airport.

Longest route in the dataset

San Juan SJUtoSaint Croix STX

151 km great-circle distance between the two airports.

Destinations in the route data

  • Saint Croix
  • Saint Thomas
  • San Juan

Common questions about flying Seaborne Airlines

What is the Seaborne Airlines customer service phone number?

According to Seaborne Airlines’s own website (seaborneairlines.com, checked 5 Oct 2026): +1 787 946 8749.

How many destinations does Seaborne Airlines fly to?

Originfacts tracks 3 Seaborne Airlines destinations across 2 countries, on 8 routes.

Where is Seaborne Airlines based?

Seaborne Airlines is based in United States. In the Originfacts route dataset, its busiest market is Saint Thomas, followed by Saint Croix and San Juan.

What aircraft appear on Seaborne Airlines routes?

The routes we hold name De Havilland Canada DHC-6 Twin Otter. That dataset accumulates over time, so treat it as a record of what has flown rather than a current fleet list.

What is the longest Seaborne Airlines route?

San Juan to Saint Croix, at 151 km.

Sources and verification

Baggage, fare, check-in, disruption and contact figures are published only when they are read from Seaborne Airlines’s own pages or a named regulator, and each one shows the page and the date it was checked. Where sources disagree we show both and publish neither. Route and destination figures come from the Originfacts route dataset and show its date instead; they are not verified by hand.