The Winair baggage allowance gives passengers just 6kg of carry-on, plus a 3kg personal item. That is 13lbs and 7lbs. Few carriers serving US travelers cap the cabin that tightly.
The reason is not marketing. Winair’s own site ties extra checked bags to the aircraft’s weight and balance limits, not to open space. Most of its Caribbean hops fly on 19 seat Twin Otters, and those planes cannot carry payload the way a regional jet can.
Windward Islands Airways, known everywhere as Winair, is based at Sint Maarten. It connects the smaller Dutch and French islands, including Saba, home to the shortest commercial runway most travelers will ever land on. On a runway that short, a few extra kilos in the cabin matter more than the size of the bag.
What the Winair baggage allowance actually includes
Per Winair’s carry-on baggage page, cabin allowance is one bag at 6kg (13lbs). A separate personal item is capped at 3kg (7lbs) and must fit under the seat ahead. Not every fare includes a free carry-on at all.
A cabin bag that runs over the limit at the gate can trigger a 50 dollar charge. The standard checked bag allowance is 50lbs (23kg) per bag. Maximum size is 62 inches, or 157cm, adding length, width and height together.
Whether that first checked bag is free depends on the fare class booked. Winair’s lowest fare tiers may not include a free checked bag at all. Always check the fare rules before you assume one is included.
Checked bag fees, overweight and oversize charges
The Winair baggage allowance for checked bags is not one flat number. Fees vary by route, and by whether you book online or pay at the counter.
Bags over 50lbs are accepted only on a space available basis. Oversize bags over 62 inches face a separate charge on top.
| Bag category | Limit | Fee, regional routes | Fee, other routes |
|---|---|---|---|
| First checked bag, booked online | 50lb / 23kg, 62in / 157cm | 15 to 30 USD | 30 to 110 USD |
| Overweight, 51 to 70lb | 23 to 32kg, standby only | 60 to 130 USD | 75 to 155 USD |
| Oversize, over 62in / 157cm | Standby only | 95 to 165 USD | 110 to 190 USD |
Airport counter rates run higher than booking a bag online. In some cases the gap is wide. Add a bag online before you travel if you know you will need one.
Why the Twin Otter changes the math
Winair’s own excess baggage page states that a second or third checked bag is accepted on a standby basis. The stated reason is the aircraft’s weight and balance limits, not just cargo hold space. That one line explains most of what confuses first time flyers.
A 40 seat ATR flying into Sint Maarten or San Juan has real slack for extra weight. A Twin Otter serving Saba, Sint Eustatius or Anguilla often does not. On the shortest hops the airline is balancing passengers, fuel and bags against a runway with almost no margin.
A bag well inside the size limit can still get bumped. That happens when the flight is already close to its weight ceiling. Size compliance does not guarantee a seat for your second bag.
Sports gear, scuba equipment and surfboards
Sporting equipment and musical instruments travel as checked baggage at the standard 50lb and 62 inch limits. Scuba equipment is accepted at the same rate. The tank must be emptied of compressed air, and the regulator valve must be removed before check-in.
Surfboards cannot fly on the Twin Otter at all. They may be accepted on the larger ATR, subject to space and Winair’s own conditions. That rules out a surfboard on most Saba, Statia or Anguilla flights, however well it is packed.
Bicycles must be boxed and deflated for a flat 50 dollar fee, on a standby basis. Golf bags travel as ordinary checked luggage, with no extra charge.
What travelers actually report at the counter
Forum accounts from regulars on the St Barts and Saba routes describe enforcement as inconsistent, not absent. Some report carrying heavy bags for years without being stopped. Others describe staff who weighed and questioned every carry-on at the departure desk.
The in transit checkpoint at Sint Maarten reportedly gets less scrutiny than the smaller island counters. That gap is worth knowing before you assume the rule is the same everywhere.
Divers often mention an extra allowance for dive gear, commonly cited around 10kg. It does not appear anywhere on Winair’s own site, so treat it as informal, not guaranteed. Experienced travelers pack a regulator in the cabin bag rather than checked luggage, and weigh everything at home first.
The bottom line
The Winair baggage allowance looks tight next to a mainline carrier’s. On the smallest islands it is enforced by physics as much as by policy. Book a fare that actually includes a checked bag, and keep the carry-on close to 6kg.
Expect a Twin Otter route to be less forgiving on weight than a flight on the larger ATR. Compare that against island neighbors like Caribbean Airlines baggage rules, Bahamasair checked bag policy or Cayman Airways allowances. The gap shows how much aircraft size drives the difference, more than any airline’s stated policy does.
For the rules behind all of these, see our checked baggage hub and the breakdown of airline baggage fees. Before you fly, run your own bag through the baggage cost calculator to see what an overweight or oversize bag would cost on your route.
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