Dulles (IAD) to Sint Maarten (SXM) flights
One airline flies nonstop from Dulles (IAD) to Sint Maarten (SXM): United Airlines. The two airports are 1,682 miles (2,707 km) apart. United Airlines is in Star Alliance. There are also 16 ways to fly it with one stop, through Saint Thomas, San Juan and Philadelphia and more.
Airlines flying nonstop from IAD to SXM
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAD to SXM with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
IAD to SXM with one stop
16 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Saint Thomas (STT)United Airlines, then Contour AviationLF
- Via San Juan (SJU)United Airlines and Frontier Airlines, then Contour Aviation
LF - Via Philadelphia (PHL)United Airlines, then American Airlines
- Via New York (EWR)United Airlines the whole way
- Via New York (JFK)Delta Air Lines the whole way
- Via Charlotte (CLT)American Airlines the whole way
- Via Orlando (MCO)Frontier Airlines and United Airlines, then Southwest Airlines
- Via Fort Lauderdale (FLL)United Airlines and Frontier Airlines, then JetBlue Airways
- Via Miami (MIA)American Airlines the whole way
- Via Boston (BOS)United Airlines, then JetBlue Airways
- Via Atlanta (ATL)Delta Air Lines the whole way
- Via Toronto (YYZ)Air Canada the whole way
- Via Montreal (YUL)Air Canada the whole way
- Via Bridgetown (BGI)United Airlines, then Caribbean Airlines, Winair and 1 more
JY - Via Chicago (ORD)United Airlines the whole way
IAD to SXM: common questions
Which airlines fly nonstop from IAD to SXM?
United Airlines (Star Alliance) flies nonstop from Dulles (IAD) to Sint Maarten (SXM).
How far is Dulles from Sint Maarten by plane?
Dulles (IAD) and Sint Maarten (SXM) are 1,682 miles (2,707 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book IAD to SXM award flights?
13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does IAD to SXM cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for IAD to SXM with taxes and fees.
Where can I connect between Dulles and Sint Maarten?
The most direct connections are through Saint Thomas (STT), San Juan (SJU), Philadelphia (PHL), New York (EWR) and New York (JFK). On 9 of them the same airline flies both flights, for example United Airlines through New York.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.