BB
SBS
34
Last updated: January 28, 2026
About
Seaborne Airlines is a regional carrier serving the US Virgin Islands and Puerto Rico, now operating as a Silver Airways subsidiary since 2022. The airline has a storied history as a pioneer of seaplane aviation in the Caribbean, leveraging its DHC-6 Twin Otter fleet to connect island communities that lacked traditional airports.
Based in the US Virgin Islands with operations centered at Saint Croix (STX), San Juan (SJU), and Saint Thomas (STT), Seaborne specializes in short-haul regional service. The airline maintains the distinctive heritage of seaplane operations while also offering amphibious aircraft that can operate from both water and conventional runways. Under Silver Airways ownership, Seaborne continues its mission of connecting the islands with reliable, frequent service.
Hubs & Focus Cities
Airports where Seaborne Airlines operates 5+ routes
Network
18 airports served
Loading map...
Baggage Policy
Carry-On Allowance
Personal Item (free on all fares):
- Dimensions: 14" x 8" x 8" (36 x 20 x 20 cm)
- Must fit under or at the side of your seat
- Examples: Small backpack, purse, laptop bag
Cabin Bag (overhead storage):
- Dimensions: 18" x 14" x 8" (46 x 36 x 20 cm) including handles
- Weight: 25 lbs (11 kg) maximum
- Included on all fares
- Limited overhead storage due to aircraft size
| Fare Class | Personal Item | Cabin Bag |
|---|---|---|
| Economy | ✓ Free | ✓ Free |
| Premium | ✓ Free | ✓ Free |
Checked Baggage
Standard Policies:
| Weight | Limit |
|---|---|
| Maximum per bag | 50 lbs (23 kg) |
| Total baggage weight | 100 lbs (45 kg) per passenger |
Checked Bag Fees:
| Bags | Fee |
|---|---|
| 1st checked bag | Included with paid fare |
| 2nd checked bag | $35 |
| 3rd+ bags | $50 each |
Special Items
| Item | Fee | Notes |
|---|---|---|
| Golf clubs | Included | Counts as 1 checked bag |
| Skis/snowboards | Included | Oversize limits apply |
| Bicycle | $50 | Must be in bike box or hard case |
| Car seat | Free | Gate-check available |
| Stroller | Free | Gate-check available |
| Diving equipment | Included | Tanks must be empty |
| Fishing rods | Included | Counts as checked baggage |
Sports Equipment Note: Seaborne often waives oversize fees for legitimate sports equipment due to the nature of Caribbean travel. Verify with the airline when booking.
In-Flight Experience
Economy Class
- Seats: High-density seating optimized for short regional flights (typical 15-19 minute flights)
- Legroom: Minimal pitch due to aircraft size
- Amenities: Basic cabin service, no in-flight entertainment on Twin Otters
- Windows: Large windows common on Twin Otters provide excellent island views
- Cabin: Pressurized, air-conditioned (temperature-controlled)
Premium Cabin
Seaborne offers premium seating on select routes with additional comfort and priority boarding, though the intimate aircraft size means all passengers benefit from proximity to crew and relaxed Caribbean service style.
Service & Amenities
- Beverages: Complimentary water and juice
- Food: Light snacks on inter-island routes; meals on longer flights
- Entertainment: None (short flight times; focus on scenery)
- WiFi: Not available on Twin Otter fleet
- Baggage Assistance: Hands-on service typical of regional carriers
The flight experience emphasizes the unique Caribbean perspective—many passengers fly specifically for the seaplane experience and aerial views of turquoise waters between islands.
Tips & Tricks
Booking & Planning:
- Book early for holiday season (Thanksgiving, Christmas, spring break)
- Seaborne often has lower fares on inter-island hops compared to ferry or driving alternatives
- Check weather forecasts before booking; hurricane season (June-November) occasionally affects schedules
- Pricing varies seasonally with Caribbean tourism patterns
Packing:
- Baggage weight limits strictly enforced (weight-sensitive aircraft)
- Arrive 45 minutes early for all flights to ensure on-time departure
- TSA PreCheck and Global Entry not applicable to regional flights, but security lines typically short
- Waterproof bag recommended if flying seaplane route (salt spray exposure)
Seaplane Experience:
- Request window seats for incredible aerial views of Caribbean islands
- Bring waterproof camera protection if you want photos of waterside operations
- Flotation procedures are routine; don't be alarmed—equipment and training are standard
- Smaller aircraft are more affected by crosswinds and weather; flights may be delayed without cancellation
Luggage:
- Use soft luggage when possible (easier to store in tight aircraft spaces)
- Fragile items should be well-padded (cabin can be bumpy over open water)
- Lost baggage extremely rare given hands-on baggage handling and short routes
Loyalty:
- Status miles accumulate quickly on frequent regional flyers
- Premium cabin upgrade availability is good given small cabin size
- Partner benefits via Silver Airways provide additional value
At the Airport:
- Arrive early to secure good window seating (first-come basis)
- Waterside airports (STX seaplane dock) offer scenic waiting areas
- Limited food/beverage options at small island terminals—bring snacks if needed
- Bring sunscreen; seaplane cabins can get warm on sunny Caribbean days
Weather Considerations:
- Tropical weather can cause brief delays without cancellation (typical August-October)
- Spring (March-May) is most reliable season for operations
- Winter (December-February) is peak season; book well in advance
- Morning flights typically have better weather conditions than afternoon
