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Dulles Intl

$217+ Cheap flights from Simpson Bay (SXM) to Dulles Intl (IAD)

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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
SXM — IAD
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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Cheap flight deals from Simpson Bay to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Simpson Bay (SXM) to Dulles Intl (IAD). 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 April 15, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$350
(Flightnetwork)

One-way from

$217
(Gotogate)

Popular in

February

Cheapest in

June

Average price

$725

Good round-trip deal

$497 or less

Good one-way deal

$369 or less
Provider with most accurate pricing for Simpson Bay Princess Juliana-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Simpson Bay Princess Juliana-Washington, D.C. Dulles Intl flights.
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From Simpson Bay Princess Juliana to Washington, D.C. Dulles Intl
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One-way flight from Simpson Bay Princess Juliana to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 22% potential increase in price ($209 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Simpson Bay Princess Juliana to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Simpson Bay Princess Juliana to Washington, D.C. Dulles Intl.
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Find flight deals from Simpson Bay to Dulles Intl

Cheapest flights from Simpson Bay to Dulles Intl
Explore the most affordable flight options available from Simpson Bay to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/13. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/246:22 pmSXM - IAD
1 stop16h 53mFrontier
Sun 6/112:28 pmIAD - SXM
1 stop28h 32mFrontier
Deal found 4/13$350
This Mytrip deal was found by Cheapflights users on 4/15. 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.
Sat 5/243:05 pmSXM - IAD
3 stops44h 19mMultiple Airlines
Sun 6/111:54 amIAD - SXM
2 stops26h 06mMultiple Airlines
Deal found 4/15$522
This Delta deal was found by Cheapflights users on 4/15. 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.
Thu 5/223:19 pmSXM - IAD
1 stop9h 09mDelta
Wed 5/286:00 amIAD - SXM
1 stop7h 54mDelta
Deal found 4/15$538
This American Airlines deal was found by Cheapflights users on 4/15. 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.
Sat 5/244:40 pmSXM - IAD
2 stops20h 42mAmerican Airlines
Sun 6/15:26 pmIAD - SXM
2 stops19h 43mAmerican Airlines
Deal found 4/15$578
This Copa Airlines deal was found by Cheapflights users on 4/13. 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.
Wed 5/712:18 pmSXM - IAD
1 stop12h 11mCopa Airlines
Thu 5/152:21 amIAD - SXM
1 stop9h 02mCopa Airlines
Deal found 4/13$620
This Vliegwinkel deal was found by Cheapflights users on 4/13. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/243:55 pmSXM - IAD
Nonstop4h 25mLufthansa
Sun 6/110:23 pmIAD - SXM
1 stop14h 06mLufthansa
Deal found 4/13$644
This Vliegwinkel deal was found by Cheapflights users on 4/13. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/243:55 pmSXM - IAD
Nonstop4h 25mSWISS
Sun 6/18:17 amIAD - SXM
Nonstop4h 12mSWISS
Deal found 4/13$648
This United Airlines deal was found by Cheapflights users on 4/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/143:55 pmSXM - IAD
Nonstop4h 25mUnited Airlines
Wed 5/218:17 amIAD - SXM
Nonstop4h 12mUnited Airlines
Deal found 4/14$654
This WestJet deal was found by Cheapflights users on 4/15. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/222:10 pmSXM - IAD
2 stops27h 44mWestJet
Wed 5/286:45 pmIAD - SXM
2 stops18h 30mWestJet
Deal found 4/15$1,245

Cheapflights Fare Finder

Customize your flight search to find flights from Simpson Bay to Dulles Intl 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 April 15, 2025.
Use the filters below to find and compare flights from Simpson Bay to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Simpson Bay

Fly to

Dulles Intl

Route

Depart

Return

Price

Simpson BayWashington, D.C.

SXM - IAD

SXMIAD

Simpson Bay Princess Juliana

Sat 5/24

6:22 pm-11:15 am

1 stop16h 53m

Washington, D.C. Dulles Intl

Sun 6/1

12:28 pm-5:00 pm

1 stop28h 32m

$350

Simpson BayWashington, D.C.

SXM - IAD

SXMIAD

Simpson Bay Princess Juliana

Sat 5/24

3:05 pm-11:24 am

3 stops44h 19m

Washington, D.C. Dulles Intl

Sun 6/1

11:54 am-2:00 pm

2 stops26h 06m

$522

Simpson BayWashington, D.C.

SXM - IAD

SXMIAD

Simpson Bay Princess Juliana

Thu 5/22

3:19 pm-12:28 am

1 stop9h 09m

Washington, D.C. Dulles Intl

Wed 5/28

6:00 am-1:54 pm

1 stop7h 54m

$538

Simpson BayWashington, D.C.

SXM - IAD

SXMIAD

Simpson Bay Princess Juliana

Sat 5/24

4:40 pm-1:22 pm

2 stops20h 42m

Washington, D.C. Dulles Intl

Sun 6/1

5:26 pm-1:09 pm

2 stops19h 43m

$578

Simpson BayWashington, D.C.

SXM - IAD

SXMIAD

Simpson Bay Princess Juliana

Wed 5/7

12:18 pm-12:29 am

1 stop12h 11m

Washington, D.C. Dulles Intl

Thu 5/15

2:21 am-11:23 am

1 stop9h 02m

$620

Simpson BayWashington, D.C.

SXM - IAD

SXMIAD

Simpson Bay Princess Juliana

Sat 5/24

3:55 pm-8:20 pm

Nonstop4h 25m

Washington, D.C. Dulles Intl

Sun 6/1

10:23 pm-12:29 pm

1 stop14h 06m

$644

Simpson BayWashington, D.C.

SXM - IAD

SXMIAD

Simpson Bay Princess Juliana

Sat 5/24

3:55 pm-8:20 pm

Nonstop4h 25m

Washington, D.C. Dulles Intl

Sun 6/1

8:17 am-12:29 pm

Nonstop4h 12m

$648

Simpson BayWashington, D.C.

SXM - IAD

SXMIAD

Simpson Bay Princess Juliana

Wed 5/14

3:55 pm-8:20 pm

Nonstop4h 25m

Washington, D.C. Dulles Intl

Wed 5/21

8:17 am-12:29 pm

Nonstop4h 12m

$654

Simpson BayWashington, D.C.

SXM - IAD

SXMIAD

Simpson Bay Princess Juliana

Thu 5/22

2:10 pm-5:54 pm

2 stops27h 44m

Washington, D.C. Dulles Intl

Wed 5/28

6:45 pm-1:15 pm

2 stops18h 30m

$1,245

Simpson BayWashington, D.C.

SXM - IAD

SXMIAD

Simpson Bay Princess Juliana

Sat 5/24

6:22 pm-11:15 am

1 stop16h 53m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 17 results
1
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Compare providers for flights from Simpson Bay to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Simpson Bay to Dulles Intl in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Simpson Bay-Washington, D.C. Dulles Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Simpson Bay-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Simpson Bay-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Simpson Bay-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Simpson Bay-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Simpson Bay to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Simpson Bay 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 Simpson Bay to Washington, D.C. Dulles Intl Airport

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

Find hourly flight availability from Simpson Bay to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.

When flying from Simpson Bay to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated April 15, 2025.
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Copa Airlines
7.6
Good
1,408 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,578 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,658 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Simpson Bay to Dulles Intl. 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 from for flights from Simpson Bay to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Simpson Bay, you will be flying from Princess Juliana, which is the city’s only airport. Simpson Bay Princess Juliana (SXM) is located 0.5 mi from the center of Simpson Bay. There are 0 flights from Princess Juliana to Washington, D.C. Dulles Intl per day from 0 different airlines.

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

    Flying on Frontier is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $350. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $538 and $578, respectively. These flights start at 51% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Simpson Bay to Washington, D.C. Dulles Intl Airport are Frontier ($217), United Airlines ($345), and Copa Airlines ($346).

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

    Looking at all options, your cheapest flight can be booked for $218. While the most popular route (Simpson Bay Princess Juliana - Washington, D.C. Dulles Intl) can be booked for $535 on average our data indicates $518 when flying from Simpson Bay to Washington, D.C. Dulles Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Simpson Bay to Dulles Intl 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 Simpson Bay to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Simpson Bay to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Simpson Bay to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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

Traveling to a place near Simpson Bay?

Book flights to Simpson Bay if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
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Springfield
Woodbridge
Rockville
Fredericksburg
Gaithersburg
Silver Spring
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Falls Church
Laurel
Easton
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Sterling
Bowie
Gettysburg
National Harbor
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