Washington Dulles to Princess Juliana
1681 miles great-circle distance, typically flown in 3h 47m with 5 airlines operating direct service from Washington Dulles (IAD) to Princess Juliana (SXM). Cheapest fares are usually in January (around $169 return), with peak prices in August (around $507). Departures on a Tuesday tend to undercut weekend prices on this corridor.
Flying from Washington Dulles
Washington Dulles International is United Airlines' Mid-Atlantic hub and the larger of the two Washington-region airports. Metro's Silver Line extension opened in 2022, running from the airport's underground station directly to downtown Washington DC in around 50 minutes for $7. International long-haul through IAD is the deepest of any DC-area airport, with United, BA, Virgin Atlantic, Lufthansa, Air France, Qatar, Emirates and Ethiopian all running daily flights to global hubs.
Arriving in St. Maarten
Princess Juliana International on Sint Maarten is the dual-island Caribbean nation's primary airport — famous for its Maho Beach approach where aircraft pass meters above sunbathers. The terminal sits 3 km east of Philipsburg. Taxis are the only practical transfer option (~$15–$25 to Philipsburg). Peak demand mirrors the rest of the Caribbean — December–April; cheapest fares come in September–October.
Who flies IAD to SXM?
| Airline | IATA | Flight time | Cabin |
| United Airlines | UA | 3h 47m | Economy |
| Frontier Airlines | F9 | 3h 47m | Economy |
| American Airlines | AA | 3h 47m | Economy |
| Delta Air Lines | DL | 3h 47m | Economy |
| JetBlue Airways | B6 | 3h 47m | Economy |
5 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Best time to fly IAD→SXM
Synthesised from 12-month price aggregates. Cheapest months in green, peak in red.
Estimated baseline. Prices update on a 30-day cadence as Travelpayouts data refreshes. Cheapest day-of-week typically Tuesday.
Washington to St. Maarten FAQs
Direct flights from Washington Dulles (IAD) to Princess Juliana (SXM) take approximately 3h 47m for the 1681-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
January is typically the cheapest month on this route, with one-way fares from $169. August is the peak — expect prices 2–3× higher. Book 4–8 weeks ahead for best fares; last-minute prices on this corridor rise sharply inside two weeks of departure.
5 carriers operate direct service from Washington Dulles (IAD) to Princess Juliana (SXM): United Airlines, Frontier Airlines, American Airlines, Delta Air Lines and JetBlue Airways. Frequencies vary by season and carrier — United Airlines typically operates the highest weekly count on this corridor.
Visa-free for US passport holders up to 90 days. Always check travel.state.gov for the latest entry requirements before booking.
Princess Juliana (SXM) is the primary international airport for St. Maarten. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.