$345 Cheap United flights Philipsburg (SXM) to Washington (IAD)

View $345 flight on Wed, May 6, 2026Opens in a new window

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$345 Cheap United flights Philipsburg (SXM) to Washington (IAD)

Prices were available within the past 7 days and start at $345 for one-way flights and $469 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Jul 30 - Fri, Aug 8
SXM
Saint Martin
IAD
Washington
$469 Roundtrip, found 3 days ago
$469
Roundtrip
found 3 days ago
Select United flight, departing Wed, Jul 30 from Saint Martin to Washington, returning Fri, Aug 8, priced at $469 found 3 days ago
United
Wed, Jul 23 - Sun, Jul 27
SXM
Saint Martin
IAD
Washington
$507 Roundtrip, found 2 days ago
$507
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 23 from Saint Martin to Washington, returning Sun, Jul 27, priced at $507 found 2 days ago
United
Wed, Jul 30 - Wed, Aug 6
SXM
Saint Martin
IAD
Washington
$533 Roundtrip, found 20 hours ago
$533
Roundtrip
found 20 hours ago
Select United flight, departing Wed, Jul 30 from Saint Martin to Washington, returning Wed, Aug 6, priced at $533 found 20 hours ago
United
Wed, Aug 13 - Fri, Aug 29
SXM
Saint Martin
IAD
Washington
$562 Roundtrip, found 1 day ago
$562
Roundtrip
found 1 day ago
Select United flight, departing Wed, Aug 13 from Saint Martin to Washington, returning Fri, Aug 29, priced at $562 found 1 day ago
United
Fri, Dec 19 - Fri, Jan 16
SXM
Saint Martin
IAD
Washington
$566 Roundtrip, found 6 hours ago
$566
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Dec 19 from Saint Martin to Washington, returning Fri, Jan 16, priced at $566 found 6 hours ago
United
Fri, Dec 19 - Fri, Jan 16
SXM
Saint Martin
IAD
Washington
$576 Roundtrip, found 6 hours ago
$576
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Dec 19 from Saint Martin to Washington, returning Fri, Jan 16, priced at $576 found 6 hours ago
United
Fri, Dec 19 - Fri, Jan 16
SXM
Saint Martin
IAD
Washington
$628 Roundtrip, found 6 hours ago
$628
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Dec 19 from Saint Martin to Washington, returning Fri, Jan 16, priced at $628 found 6 hours ago
Flights from Philipsburg (SXM) to Washington (IAD)
Origin airport
Princess Juliana Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Copa, Delta, Frontier Airlines, United
Popular airline
Delta
Distance
1681 mi
Average flight time
5 hours 25 mins

Frequently asked questions

How much is a United Airlines flight from Princess Juliana Intl. Airport (SXM) to Washington Dulles Intl. Airport (IAD)?
Apply the "Price (lowest to highest)" filter on Expedia to search for cheap United Airlines return flights from $469 from SXM to IAD. Affordable one-way options from $345 are also available.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SXM to IAD with United Airlines?
January is one of the most affordable months to fly to Washington with United Airlines. You could also find great prices on return and one-way tickets in February.
What is the cheapest time to book flights from Princess Juliana Intl. Airport (SXM) to Washington Dulles Intl. Airport (IAD) with United Airlines?
Snagging the best United Airlines deals from SXM to IAD often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. What's more, you can pocket 17% on average by buying your tickets on a Sunday compared to a Friday, which is often the most expensive day to book.* It's a good idea to start checking out flights about one month before your departure date.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Princess Juliana Intl. Airport (SXM) to Washington Dulles Intl. Airport (IAD)?
Hop on one of United Airlines's 2 weekly direct flights from Princess Juliana Intl. Airport (SXM) to Washington Dulles Intl. Airport (IAD). To see what's available, enter your dates, destination and origin and hit search. Next, apply the "Nonstop" and "Airline" filters.
How long does it take to fly from SXM to IAD with United Airlines?
It takes around 4h 32m to travel nonstop from Princess Juliana Intl. Airport (SXM) to Washington Dulles Intl. Airport (IAD) with United Airlines.
What is the earliest United Airlines flight from SXM to IAD?
The first United Airlines flight from SXM to IAD takes off at 4:55PM UTC-4, landing at 8:27PM UTC-5. If you want to jet off later, the last United Airlines flight leaves SXM at 4:55PM UTC-4 and touches down at IAD at 8:27PM UTC-5. Flying before midday is generally a good idea as morning flights are 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Washington?
United Airlines flights from Princess Juliana Intl. Airport (SXM) to Washington come in to Washington Dulles Intl. Airport (IAD). This is the main entry point to this destination.
Why fly with United Airlines from SXM to IAD?
Offering a rewarding loyalty program, United Airlines is a favorite of many travelers heading from SXM to IAD. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Princess Juliana Intl. Airport (SXM) to Washington Dulles Intl. Airport (IAD)?
You'll most likely travel on a Boeing 737-700 for your United Airlines flight from Princess Juliana Intl. Airport (SXM) to Washington Dulles Intl. Airport (IAD). However, you may end up on another aircraft for operational reasons.
Can I change or cancel my United Airlines flight from Princess Juliana Intl. Airport (SXM) to Washington Dulles Intl. Airport (IAD)?
Depending on your fare type, a fee typically applies if you cancel or change your flight more than 24 hours after it has been confirmed. To secure plane tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when looking for flights. For more details on canceling or changing your reservation, visit "Trips," select your flight and click on "Manage Booking."

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