Flying SXM → SBH

Flying from St Maarten (SXM) to St Barth: Winair, St Barth Commuter & Charter Compared

There are two scheduled airlines on the SXM–SBH route in 2026 (Winair and St Barth Commuter), and a handful of operators willing to fly you across on charter (St Barth Commuter, Tradewind Aviation, Winair's own Twin Otter charter desk). The flight takes about fifteen minutes in the air. What the marketing photos don't show is the second check-in, the strict luggage limit, the daylight-only cut-off at SBH, and the afternoons when wind shear cancels the lot. Here's the honest version of how flying from St Maarten to St Barth works, what each operator actually flies, and when the private boat ends up being faster door-to-door anyway.

By St Barth Charter · · 9 min read

The two scheduled airlines: Winair vs St Barth Commuter

Both fly the same fifteen-minute hop from Princess Juliana (SXM) to Gustaf III (SBH, sometimes called Rémy de Haenen). Both run multiple daily rotations. The aircraft, the booking experience and the small operational details are different, and those differences matter once you've got luggage and a connecting flight in the mix.

Winair, the Twin Otter operator

Windward Islands Airways, branded as Winair, is the larger of the two and flies the route on the de Havilland Canada DHC-6 Twin Otter. The Twin Otter seats 19 passengers in a 1+2 configuration (single seat on the left, double on the right of the aisle), and that 19-seat cabin is the standard commuter layout used by most island operators in the Lesser Antilles. It's a high-wing turboprop built for short, sloped runways like St Barth's 2,100-foot strip, and that's why it works on the route.

Winair has an IATA code (WM), publishes a public timetable, sells tickets through normal travel agents and OTAs, and connects under interline agreements with major airlines. That last detail matters: if you book Winair on the same ticket as your inbound transatlantic, baggage can sometimes be checked through, and a missed connection has formal protections that a separate ticket doesn't. Earliest departures from SBH typically push from 08:30 in the morning, with rotations through the day; the last flight in tends to land before SBH's sunset cut-off.

St Barth Commuter, the Caravan operator

Founded in 1994 and locally owned, St Barth Commuter operates a fleet of five Cessna 208B Grand Caravans. The Caravan is a single-engine turboprop with a different feel from the Twin Otter, lower wing, smaller cabin, more of a "private feel" up front because you're effectively right behind the pilot. The airline has flown well over 500,000 passengers since launch and runs both scheduled rotations on the SXM-SBH leg and an active private charter desk on the same aircraft. Their fleet also operates the Saint-Barthélemy to Grand Case (SFG) route on the French side, useful if you happen to land at Grand Case instead of Princess Juliana.

Practically speaking, St Barth Commuter feels more boutique, the gate experience is shorter, the staff at SBH know the regulars, and re-booking around weather is handled in person rather than by call centre. The flight itself is the same fifteen-minute hop.

Side-by-side

Detail Winair St Barth Commuter
Aircraft DHC-6 Twin Otter (19 seats) Cessna 208B Grand Caravan
Scheduled SXM-SBH Yes, multiple daily Yes, multiple daily
Private charter Available (Twin Otter) Available (Grand Caravan)
Interline / OTA booking Yes (IATA: WM) Direct booking primary
Feel Regional commuter Boutique / family-run
Flight time ~15 min ~15 min

Late SXM arrival? Don't risk the last flight.

If your inbound lands after 4:00 PM, the boat is usually the safer move. We watch your flight number and adjust the dock pickup automatically.

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Charter flights from St Maarten to St Barth

"Charter flights St Maarten to St Barts" is its own search for a reason: when scheduled service doesn't fit, charter is the next conversation. There are three real options on the SXM-SBH leg.

St Barth Commuter charter (Cessna Grand Caravan)

The same Grand Caravan you can buy a single seat on also goes out on charter. Up to seven passengers per flight, departure time you choose, fixed per-aircraft price. This is the most common choice for groups who want to skip the scheduled rotation, families that don't want to be split across two flights, and last-minute bookings on a peak weekend when scheduled seats are sold out.

Tradewind Aviation (Pilatus PC-12)

Tradewind Aviation flies the Pilatus PC-12, a pressurised single-engine turboprop that's quieter and more comfortable than the Caravan or the Twin Otter. Important nuance: Tradewind's scheduled St Barth service flies from San Juan (SJU), St Thomas (STT) and Antigua (ANU), not from Princess Juliana. On the SXM-SBH leg specifically, they operate as a private charter only. If you're connecting from a North American flight that lands at SXM and you want the PC-12 experience, you book it as a private leg.

Winair Twin Otter charter

Less talked about, but Winair will also charter out a Twin Otter on the SXM-SBH leg if the timing fits the fleet. With 19 seats it's the right size for a wedding group, a corporate retreat or a multi-family trip arriving on the same wide-body. The per-aircraft economics start to make sense once you fill more than ten seats.

How charter pricing actually works

All three options quote per aircraft per leg, not per seat. The number depends on the model, the slot, the season, and whether your departure overlaps a scheduled rotation. Anyone who quotes you an exact charter price in an SEO article without knowing your date is guessing. The honest answer is to confirm directly with the operator (or with us, if you want the boat alternative quoted alongside).

One operational note: charters out of SXM still have to land at SBH while the airport is open. The sunset cut-off is the same for a Pilatus as for the scheduled Winair flight. If you're trying to charter your way around a late inbound, the helicopter is the next conversation up, and on most routes the private boat handles after-dark crossings that no fixed-wing or helicopter operator can.

The St Barth landing, briefly

It deserves a paragraph because it's the reason a lot of people fly the route once just to have done it. SBH sits in a bowl. The approach starts north of the island at the Col de la Tourmente, the saddle in the hills above Anse des Cayes. The aircraft drops over the road, banks toward the runway threshold and lands on the short strip with the beach at the far end. Pilots flying SBH carry a specific type-rating; the procedure is genuinely demanding and the runway is short enough that the larger Twin Otter uses every foot of it. Take-off is the reverse: full power, off the runway, and you're over the water immediately. The sensation isn't dangerous, it's choreographed. But it is dramatic, and it's why first-time visitors flying in tend to remember the fifteen-minute hop more vividly than the rest of the trip.

The luggage rule everyone underestimates

The single biggest source of "I wish I'd known" emails on the SXM-SBH flight isn't the landing, it's the luggage allowance. Most scheduled commuter flights cap total checked-plus-cabin baggage between 10 and 15 kg (22 to 33 lb) per passenger. Hard-shell cases are sometimes refused outright because they don't fit the Twin Otter's compartments. Excess pieces go on a later flight, by ferry, or wait at SXM until you can come pick them up.

I live on St Barth, and I see this every season. A family of four lands at SXM with eight suitcases. Two of the eight fly with them. Four go on the next rotation, which might be the same evening or the next morning. The last two miss the cut-off entirely and sit in Sint Maarten for two days. Same problem on the way home: you finish a week of dinners in Gustavia, pack the wine and the gifts, and discover at check-in that two cases aren't coming on the plane.

The boat is the answer if that sentence makes you nervous. There's no weight scale on a private speedboat. We've moved twelve guests with twenty-four cases on a single crossing without anyone counting kilos. If the wine matters, the surfboard matters, or the case of bath products you ordered to the villa matters, fly the people and sail the bags — or, more often, send the whole party by boat and skip the second check-in entirely. The SXM-to-St-Barth connection guide walks through how the door-to-dock timing actually works.

No night flights into SBH

Gustaf III opens at 7:00 AM and closes fifteen minutes after sunset. There are no runway lights, no instrument-landing-system, and the surrounding terrain rules out the kind of approach a larger airport handles after dark. In practical terms, the last fixed-wing flight into SBH lands somewhere between 6:00 PM (winter) and 7:30 PM (summer) depending on the date. If you land at SXM at 5:00 PM on a December evening with three hours of connection cushion, you may already be past the last possible departure to St Barth.

This is the single most common reason scheduled-flight plans collapse. The transatlantic was on time, immigration was quick, the bags came out fast, and you still missed the last hop because SBH closed at dusk. From that point, your options are an overnight in Sint Maarten and a 7:00 AM rotation the next day, or a private boat across the channel that doesn't care about runway lights.

Weather, wind shear and the cancellation pattern

SBH is exposed to easterly trade winds. In normal conditions the approach works; when the easterlies blow above a certain threshold or when a Saharan dust event reduces visibility, the airport closes for fixed-wing landings. Closures usually affect a window of a few hours rather than the whole day, but they cluster in the late afternoon and in the run-up to a passing system. Cancellation policy varies by operator; Winair rebooks onto the next available departure, and St Barth Commuter is generally pragmatic about reshuffling.

Boats handle the same channel under different rules. We've crossed comfortably on days when the airport was closed and the ferries were running rough; the wind and the chop affect comfort, not feasibility, on a planing motor yacht with a captain who picks the line.

Door-to-door reality, not just flight time

The fifteen-minute headline number is the air time. Door-to-door from SXM arrivals to a villa in Gustavia, St Jean or Lurin is closer to one to one-and-a-half hours by flight, broken down roughly as follows:

The private boat door-to-dock comparison is roughly: 25 to 40 minutes for immigration and baggage at SXM, 10-minute drive to Cole Bay, 5 minutes to board, 40 minutes for the crossing, 5 minutes to disembark in Gustavia, 5 to 25 minutes to your villa. In practice the totals come out close, and the boat doesn't have a 30-pound luggage cap or a sunset cut-off.

When to fly, when to take the boat

I help guests pick between these every week. The pattern is consistent:

Fly if

Take the boat if

If you're flying anyway, a few practical notes

Frequently asked questions

Is there a direct flight from St Maarten to St Barth?

Yes, both Winair and St Barth Commuter operate direct scheduled flights between SXM and SBH, multiple times daily, with a flight time of about fifteen minutes.

What is the cheapest way to fly from SXM to SBH?

The lowest scheduled fares typically come from booking either Winair or St Barth Commuter directly, well in advance. One-way scheduled tickets generally sit in the €140 to €220 per-person range. Exact pricing varies by season and availability — confirm at the time of booking.

Can I bring all my luggage on the SXM-SBH flight?

Probably not, if you're traveling heavy. Most scheduled commuter flights enforce a 10 to 15 kg cap per passenger including carry-on, and oversized cases can be refused. Anything over the limit gets put on a later rotation or held at SXM. The private boat has no weight cap.

How does St Barth Commuter's charter service work?

You book the whole Cessna 208B Grand Caravan, not a single seat. Up to seven passengers, departure time you pick, per-aircraft pricing. It's the same Grand Caravan that flies the scheduled rotations, just with your name on the manifest.

Does Tradewind Aviation fly from SXM to SBH on schedule?

No. Tradewind's scheduled St Barth service is from San Juan, St Thomas and Antigua. On the SXM-SBH leg specifically, they operate as a private charter only, on the Pilatus PC-12.

What happens if my flight to St Barth is cancelled?

You get rebooked onto the next available rotation (operator-dependent). If your cancellation is in the late afternoon and the next slot is the following morning, that means an overnight in Sint Maarten. The cleanest workaround is a private boat: it doesn't depend on SBH's runway being open and runs into the evening.

Is the helicopter a real alternative to flying?

For specific use cases, yes. See our separate guide to the St Maarten to St Barth helicopter for the honest version: operators, aircraft, cost framing, and when it actually beats both the plane and the boat.