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Simpson Bay

$115+ Cheap flights from Dulles Intl (IAD) to Simpson Bay (SXM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SXM
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Simpson Bay Princess Juliana are usually found in September or August, booked 2 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from Dulles Intl to Simpson Bay

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Simpson Bay (SXM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2025.

Round-trip from

$356
(Mytrip)

One-way from

$115
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$718

Good round-trip deal

$692 or less
From Washington, D.C. Dulles Intl to Simpson Bay Princess Juliana
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One-way flight from Washington, D.C. Dulles Intl to Simpson Bay Princess Juliana
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Highest demand for flights based on searches. 11% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Simpson Bay Princess Juliana.
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Find flight deals from Dulles Intl to Simpson Bay

Cheapest flights from Dulles Intl to Simpson Bay
Explore the most affordable flight options available from Dulles Intl to Simpson Bay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Priceline deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/712:24 pmIAD - SXM
1 stop28h 57mFrontier
Mon 8/116:26 pmSXM - IAD
1 stop17h 30mFrontier
Deal found 7/28$290
This Booking.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2910:12 pmIAD - SXM
2 stops40h 48mAir Canada
Sat 12/133:40 pmSXM - IAD
2 stops25h 31mAir Canada
Deal found 7/27$464
This Mytrip deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/268:13 pmIAD - SXM
2 stops17h 47mMultiple Airlines
Sat 11/14:00 pmSXM - IAD
1 stop29h 29mMultiple Airlines
Deal found 7/28$474
This Copa Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/202:25 amIAD - SXM
1 stop9h 01mCopa Airlines
Sun 9/2812:25 pmSXM - IAD
1 stop15h 55mCopa Airlines
Deal found 7/28$519
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:00 amIAD - SXM
1 stop7h 45mDelta
Wed 9/173:20 pmSXM - IAD
1 stop7h 57mDelta
Deal found 7/27$547
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:21 pmIAD - SXM
2 stops17h 58mAmerican Airlines
Tue 9/162:20 pmSXM - IAD
2 stops19h 47mAmerican Airlines
Deal found 7/25$548

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Simpson Bay that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Simpson Bay that are best for you.

Fly from

Dulles Intl

Fly to

Simpson Bay

Route

Depart

Return

Price

Washington, D.C.Simpson Bay

IAD - SXM

IADSXM

Washington, D.C. Dulles Intl

Thu 8/7

12:24 pm-5:21 pm

1 stop28h 57m

Simpson Bay Princess Juliana

Mon 8/11

6:26 pm-11:56 am

1 stop17h 30m

$290

Washington, D.C.Simpson Bay

IAD - SXM

IADSXM

Washington, D.C. Dulles Intl

Sun 10/26

8:13 pm-2:00 pm

2 stops17h 47m

Simpson Bay Princess Juliana

Sat 11/1

4:00 pm-9:29 pm

1 stop29h 29m

$474

Washington, D.C.Simpson Bay

IAD - SXM

IADSXM

Washington, D.C. Dulles Intl

Sat 9/20

2:25 am-11:26 am

1 stop9h 01m

Simpson Bay Princess Juliana

Sun 9/28

12:25 pm-4:20 am

1 stop15h 55m

$519

Washington, D.C.Simpson Bay

IAD - SXM

IADSXM

Washington, D.C. Dulles Intl

Wed 9/10

6:00 am-1:45 pm

1 stop7h 45m

Simpson Bay Princess Juliana

Wed 9/17

3:20 pm-11:17 pm

1 stop7h 57m

$547

Washington, D.C.Simpson Bay

IAD - SXM

IADSXM

Washington, D.C. Dulles Intl

Tue 9/9

7:21 pm-1:19 pm

2 stops17h 58m

Simpson Bay Princess Juliana

Tue 9/16

2:20 pm-10:07 am

2 stops19h 47m

$548

Washington, D.C.Simpson Bay

IAD - SXM

IADSXM

Washington, D.C. Dulles Intl

Sun 8/3

12:24 pm-5:21 pm

1 stop28h 57m

$115

Washington, D.C.Simpson Bay

IAD - SXM

IADSXM

Washington, D.C. Dulles Intl

Mon 8/11

9:58 pm-8:12 am

2 stops34h 14m

$178

Washington, D.C.Simpson Bay

IAD - SXM

IADSXM

Washington, D.C. Dulles Intl

Sat 8/30

4:34 pm-11:23 am

1 stop18h 49m

$222

Washington, D.C.Simpson Bay

IAD - SXM

IADSXM

Washington, D.C. Dulles Intl

Sat 8/30

8:17 am-12:29 pm

Nonstop4h 12m

$293

Washington, D.C.Simpson Bay

IAD - SXM

IADSXM

Washington, D.C. Dulles Intl

Fri 10/3

6:00 am-1:50 pm

1 stop7h 50m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 12 results
1
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Best time to book a flight from Dulles Intl to Simpson Bay

Have a flexible travel schedule? Discover the best time to fly to Simpson Bay from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Simpson Bay

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Simpson Bay?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Simpson Bay (average of $459). Flying from Washington, D.C. Dulles Intl Airport to Simpson Bay in March is currently the most expensive (average of $654). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to SXM?

Find hourly flight availability from Dulles Intl to Simpson Bay. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Simpson Bay is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 29% on airfare.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Simpson Bay?

Reviews of airlines servicing Simpson Bay

Get insights into the airlines that provide service to Simpson Bay. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Simpson Bay. Reviews last updated July 28, 2025.
Get a feel of what it's like to fly with Delta, Copa Airlines, and United Airlines from Washington, D.C. Dulles Intl Airport to Simpson Bay by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,971 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Copa Airlines
7.5
Good
1,493 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,893 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
2,968 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Simpson Bay. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Simpson Bay from Washington, D.C. Dulles Intl?

    Most people fly into Simpson Bay Princess Juliana (SXM) if they book a flight to Simpson Bay from Washington, D.C. Dulles Intl. On average, Princess Juliana has 0 inbound flights from Washington, D.C. Dulles Intl per day from 3 airlines. Simpson Bay Princess Juliana is conveniently located just 0.5 mi from Simpson Bay’s city center.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Simpson Bay round-trip?

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Simpson Bay round-trip from $356. Other airlines that can offer you cheap pricing are Air Canada, from $464, and Copa Airlines, from $519. Users have found that Frontier is 52% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Simpson Bay one-way?

    $115 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Copa Airlines and United Airlines, with prices starting from $222 and $293, respectively.

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Simpson Bay?

    Looking at all options, your cheapest flight can be booked for $582. While the most popular route (Washington, D.C. Dulles Intl - Simpson Bay Princess Juliana) can be booked for $290 on average our data indicates $936 when flying from Washington, D.C. Dulles Intl Airport to Simpson Bay.

  • Can I find deals for flights from Dulles Intl to Simpson Bay that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Simpson Bay flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Simpson Bay?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Simpson Bay.

  • Can I find deals for business class flights from Dulles Intl to Simpson Bay?

    Yes. Cheapflights offers flight deals from Dulles Intl to Simpson Bay by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Simpson Bay?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Simpson Bay (average of $459). Flying from Washington, D.C. Dulles Intl Airport to Simpson Bay in March is currently the most expensive (average of $654). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Dulles Intl to Simpson Bay

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Dulles Intl to Simpson Bay

Discover the top 3 airlines that operate flights from Dulles Intl to Simpson Bay. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$544Average$642FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$549Average$764FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$553Average$778FlexibilityNo cancel feeOn-time69%

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