Seaborne Airlines Flights
Search and compare Seaborne Airlines fares between San Juan, St. Thomas, and St. Croix. Find the best inter-island fares — only on FareOptic.
About Seaborne Airlines
Seaborne Airlines (IATA: BB) is a small regional carrier based at Luis Muñoz Marín International Airport in San Juan, Puerto Rico. The airline has roots in seaplane operations, historically flying amphibious aircraft between Caribbean destinations — a heritage reflected in its name. Today, Seaborne operates conventional turboprop aircraft, including the Saab 340, flying between standard airports rather than seaplane bases.
Seaborne's core role is providing essential inter-island connectivity between Puerto Rico and the US Virgin Islands, with its St. Thomas–St. Croix route among its most popular — a hop few other carriers serve directly. As a compact, single-cabin operator with no global alliance affiliation, Seaborne focuses on reliable, frequent short flights rather than a large route network. FareOptic compares Seaborne fares across its San Juan, St. Thomas, and St. Croix routes to help you find the best BB ticket price.
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Popular Seaborne Airlines Routes
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*All above fares are one way/round trip. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions.
Seaborne Airlines Hub Airport
Seaborne operates its network from a single primary hub in San Juan, Puerto Rico.
Seaborne Airlines Cabin
Seaborne operates a single-class cabin suited to its short inter-island flights.
Economy
- ✓Single-class cabin on all flights
- ✓Small turboprop aircraft (Saab 340 and similar)
- ✓Short flight times of well under an hour between islands
- ✓Simple, no-frills service suited to quick inter-island hops
- ✓Checked bag allowance included on standard fares
Loyalty & Rewards
Seaborne Airlines does not operate a major frequent flyer program. As a small regional carrier, it focuses on dependable, frequent short-hop service between Puerto Rico and the US Virgin Islands rather than a rewards scheme.
No Formal Rewards Program
Seaborne does not offer a points or miles program — fares are simple and route-based.
Frequent Short-Hop Schedules
Multiple daily flights on its core San Juan–St. Thomas and San Juan–St. Croix routes support island residents and regular travelers.
Direct Booking
Fares can be compared and booked directly for the route and date you need, without needing to accumulate status.
Interline & Codeshare Options
Seaborne has at times partnered with other regional and mainline carriers for connecting itineraries — check current partnerships when booking longer trips.
Seaborne Airlines Baggage Policy
Baggage limits are lower than mainline carriers due to Seaborne's small turboprop aircraft. Always verify at time of booking.
| Bag / Policy | Economy |
|---|---|
| Carry-on bag | 1 small item, subject to space on turboprop aircraft |
| 1st checked bag | Included on most standard fares; weight limits apply due to small aircraft |
| 2nd checked bag | Fee applies |
| Weight limit per bag | 40 lb (approx. 18 kg), lower than mainline carriers due to aircraft size |
Weight limits are lower than mainline jet carriers due to the size of Seaborne's turboprop aircraft. Verify at seaborneairlines.com.
Check-In Options & Boarding
Online Check-In
Available at seaborneairlines.com prior to arriving at the airport for most routes.
Airport Check-In
Staffed counters at San Juan (SJU), St. Thomas (STT), and St. Croix (STX). Arrive early given the small aircraft and limited seating per flight.
Boarding
Boarding is quick given the small turboprop aircraft size; gates typically close 15–20 minutes before departure.
Cancellation & Change Policy
24-Hour Risk-Free Cancellation
All FaresSeaborne tickets booked directly can typically be cancelled within 24 hours of purchase for a full refund, in line with US DOT rules for tickets booked a week or more before departure.
Standard Change Fees
Standard FaresChanges to your travel date or route may incur a fee plus any fare difference. Contact Seaborne directly for the current fee schedule.
Weather & Operational Changes
OperationalAs a small regional operator flying short inter-island hops, flights can be more sensitive to weather. Seaborne will typically rebook affected passengers on the next available flight.
Refunds
Fare DependentRefund eligibility depends on fare type at purchase. Always review the fare rules shown at booking before completing your purchase.
In-Flight Experience on Seaborne Airlines
Short Flight Times
Most Seaborne routes take well under an hour, connecting Puerto Rico and the US Virgin Islands quickly without the wait of a ferry.
Small-Cabin Comfort
Flights are operated on small turboprop aircraft with a single economy-style cabin — no seatback entertainment or elaborate service given the short flight duration.
Scenic Caribbean Views
Low-altitude regional routes offer scenic views over the Caribbean Sea and surrounding islands.
Simple, No-Frills Service
Seaborne's focus is on getting passengers between islands reliably, with a simple onboard experience suited to quick hops rather than long-haul comfort.
Tips to Book Cheap Seaborne Airlines Flights
- 1.Book San Juan–St. Thomas and San Juan–St. Croix routes a few weeks ahead — seats fill quickly given the small aircraft size.
- 2.The St. Thomas–St. Croix inter-island hop is one of the few direct options between the two US Virgin Islands — compare it against ferry options for time savings.
- 3.Since Seaborne aircraft are small, arrive at the airport with time to spare, especially during peak Caribbean travel season (December–April).
- 4.Pack light — baggage weight limits are lower than mainline carriers due to the turboprop aircraft used on these routes.
- 5.Check for connecting itineraries if you're traveling from the US mainland to the Virgin Islands via San Juan.
- 6.Compare Seaborne fares on FareOptic against other regional Caribbean carriers serving the same San Juan–Virgin Islands routes.
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Frequently Asked Questions
Everything you need to know about booking Seaborne Airlines flights on FareOptic
What routes does Seaborne Airlines fly?
Seaborne Airlines is a small regional carrier based in San Juan, Puerto Rico, primarily connecting Puerto Rico to the US Virgin Islands. Its most popular routes link San Juan (SJU) with St. Thomas (STT) and St. Croix (STX), along with a direct inter-island hop between St. Thomas and St. Croix — routes that provide essential connectivity for island residents and travelers where few other carriers operate.
Did Seaborne Airlines used to operate seaplanes?
Yes. Seaborne has roots in seaplane operations, historically known for flying amphibious aircraft between Caribbean destinations. Its current operations, however, use conventional turboprop aircraft — such as the Saab 340 — flying between standard airports rather than seaplane bases. Travelers booking today should expect a normal airport-to-airport regional flight, not a seaplane departure.
What aircraft does Seaborne Airlines use?
Seaborne operates small regional turboprop aircraft, including the Saab 340, suited to the short inter-island hops it serves. These aircraft carry a limited number of passengers per flight compared to mainline jets, which is typical for airlines serving small Caribbean island airports.
Is Seaborne Airlines part of an airline alliance?
No. Seaborne Airlines is not a member of any global airline alliance. It operates as a standalone regional carrier focused on its niche of connecting Puerto Rico with the US Virgin Islands and nearby Caribbean points.
Does Seaborne Airlines have a frequent flyer program?
Seaborne Airlines does not operate a major frequent flyer or loyalty program comparable to larger airlines. As a small regional carrier, its focus is on providing reliable, frequent short-hop service rather than a rewards program.
Why is Seaborne Airlines important for Caribbean travel?
Seaborne fills an essential inter-island connectivity role that few other carriers serve, particularly the St. Thomas–St. Croix route within the US Virgin Islands. For island residents and visitors who need to move between Puerto Rico and the Virgin Islands without a lengthy detour, Seaborne is often the most direct option available.