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Dulles Intl

$496+ Cheap flights from Stansted (STN) 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 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
STN — IAD
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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Find flight deals from Stansted to Dulles Intl

Cheapest flights from Stansted to Dulles Intl
Explore the most affordable flight options available from Stansted to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 18, 2025.

This Mytrip deal was found by Cheapflights users on 11/18. 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.
Wed 12/38:55 pmSTN - IAD
2 stops23h 20mMultiple Airlines
Mon 1/125:30 pmIAD - STN
2 stops25h 25mMultiple Airlines
Deal found 11/18$607
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:30 amSTN - IAD
1 stop14h 05mMultiple Airlines
Sat 12/65:05 pmIAD - STN
1 stop9h 45mMultiple Airlines
Deal found 11/18$611
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:30 amSTN - IAD
1 stop14h 05mMultiple Airlines
Sun 12/145:05 pmIAD - STN
1 stop13h 00mMultiple Airlines
Deal found 11/18$613
This Mytrip deal was found by Cheapflights users on 11/17. 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.
Fri 12/59:00 amSTN - IAD
2 stops17h 00mMultiple Airlines
Mon 12/85:30 pmIAD - STN
2 stops25h 25mMultiple Airlines
Deal found 11/17$628
This Mytrip deal was found by Cheapflights users on 11/18. 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 12/216:30 amSTN - IAD
1 stop18h 00mMultiple Airlines
Wed 12/315:05 pmIAD - STN
1 stop9h 45mMultiple Airlines
Deal found 11/18$645
This Mytrip deal was found by Cheapflights users on 11/17. 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.
Fri 12/129:00 amSTN - IAD
2 stops17h 00mMultiple Airlines
Tue 1/135:30 pmIAD - STN
2 stops25h 20mMultiple Airlines
Deal found 11/17$656
This Mytrip deal was found by Cheapflights users on 11/18. 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.
Thu 12/46:20 amSTN - IAD
2 stops14h 30mMultiple Airlines
Sun 12/76:00 pmIAD - STN
2 stops18h 15mMultiple Airlines
Deal found 11/18$667
This Mytrip deal was found by Cheapflights users on 11/18. 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.
Tue 12/27:40 amSTN - IAD
2 stops36h 00mMultiple Airlines
Mon 12/88:30 pmIAD - STN
2 stops19h 25mMultiple Airlines
Deal found 11/18$672
This FlightHub deal was found by Cheapflights users on 11/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:20 amSTN - IAD
1 stop16h 25mRoyal Air Maroc
Sun 12/288:45 pmIAD - STN
1 stop28h 35mRoyal Air Maroc
Deal found 11/18$680
This Mytrip deal was found by Cheapflights users on 11/18. 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.
Thu 11/278:05 amSTN - IAD
2 stops15h 25mMultiple Airlines
Tue 12/27:40 pmIAD - STN
2 stops23h 10mMultiple Airlines
Deal found 11/18$694
This Mytrip deal was found by Cheapflights users on 11/17. 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.
Tue 12/236:30 amSTN - IAD
1 stop14h 05mMultiple Airlines
Wed 12/315:05 pmIAD - STN
1 stop11h 00mMultiple Airlines
Deal found 11/17$706

Cheap flight deals from Stansted to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Stansted (STN) 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 November 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$595
(Mytrip)

One-way from

$496
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$658
Provider with most accurate pricing for London Stansted-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Stansted-Washington, D.C. Dulles Intl flights.
Search Deals
From London Stansted to Washington, D.C. Dulles Intl
Search Deals
One-way flight from London Stansted to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Stansted 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 November 18, 2025.
Use the filters below to find and compare flights from London Stansted Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Stansted

Fly to

Dulles Intl

Route

Depart

Return

Price

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 2/13

11:55 am-3:15 pm

2 stops32h 20m

Washington, D.C. Dulles Intl

Tue 2/17

5:30 pm-11:50 pm

2 stops25h 20m

$605

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 12/3

8:55 pm-3:15 pm

2 stops23h 20m

Washington, D.C. Dulles Intl

Mon 1/12

5:30 pm-11:55 pm

2 stops25h 25m

$607

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Sat 2/14

8:10 pm-4:05 pm

2 stops24h 55m

Washington, D.C. Dulles Intl

Sat 2/21

6:50 pm-11:35 pm

2 stops23h 45m

$625

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Tue 2/24

8:25 pm-9:00 pm

2 stops29h 35m

Washington, D.C. Dulles Intl

Tue 3/10

6:30 pm-11:50 pm

2 stops25h 20m

$647

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 12/5

6:25 pm-4:35 pm

2 stops27h 10m

Washington, D.C. Dulles Intl

Mon 12/8

6:05 pm-8:00 pm

2 stops20h 55m

$658

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 12/4

6:20 am-3:50 pm

2 stops14h 30m

Washington, D.C. Dulles Intl

Sun 12/7

6:00 pm-5:15 pm

2 stops18h 15m

$667

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Sat 12/13

7:20 am-6:45 pm

1 stop16h 25m

Washington, D.C. Dulles Intl

Sun 12/28

8:45 pm-6:20 am

1 stop28h 35m

$679

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 12/10

8:40 pm-3:15 pm

2 stops23h 35m

Washington, D.C. Dulles Intl

Mon 1/12

5:30 pm-11:55 pm

2 stops25h 25m

$720

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Sat 12/13

4:20 pm-9:00 pm

2 stops33h 40m

Washington, D.C. Dulles Intl

Thu 1/8

5:30 pm-11:40 pm

2 stops25h 10m

$746

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 4/13

5:50 am-3:30 pm

1 stop14h 40m

Washington, D.C. Dulles Intl

Tue 4/21

5:20 pm-7:50 am

1 stop9h 30m

$761

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 22 results
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  • Most accurate provider: When it comes to deals on London Stansted Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Stansted Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Stansted Airport-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 London Stansted Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 London Stansted Airport-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 Stansted to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Stansted 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.

Related info for your journey

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Stansted 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.

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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