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Dulles Intl

$488+ 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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
STN — IAD
nov. 1 — nov. 81
sáb. 11/1
sáb. 11/8
1 adult, Economy
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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 octubre 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$529
(Mytrip)

One-way from

$488
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$754
Provider with most accurate pricing for London Stansted-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for London Stansted-Washington, D.C. Dulles Intl flights.
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From London Stansted to Washington, D.C. Dulles Intl
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One-way flight from London Stansted to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 11% potential increase in price ($93 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 octubre 2, 2025.

This Mytrip deal was found by Cheapflights users on 10/2. 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.
jue. 11/206:30 amSTN - IAD
2 stops17h 00mMultiple Airlines
dom. 11/237:40 pmIAD - STN
2 stops17h 40mMultiple Airlines
Deal found 10/2$529
This Mytrip deal was found by Cheapflights users on 10/2. 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.
mié. 11/198:30 amSTN - IAD
2 stops15h 00mMultiple Airlines
dom. 11/237:40 pmIAD - STN
2 stops17h 40mMultiple Airlines
Deal found 10/2$531
This Mytrip deal was found by Cheapflights users on 10/1. 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.
jue. 11/69:25 amSTN - IAD
2 stops34h 15mMultiple Airlines
jue. 11/1310:55 pmIAD - STN
2 stops20h 10mMultiple Airlines
Deal found 10/1$545
This Mytrip deal was found by Cheapflights users on 10/1. 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.
lun. 11/246:30 amSTN - IAD
2 stops17h 00mMultiple Airlines
lun. 12/17:40 pmIAD - STN
2 stops20h 40mMultiple Airlines
Deal found 10/1$548
This Mytrip deal was found by Cheapflights users on 10/2. 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.
mar. 11/49:20 pmSTN - IAD
2 stops28h 40mMultiple Airlines
mar. 11/115:30 pmIAD - STN
2 stops25h 20mMultiple Airlines
Deal found 10/2$552
This Mytrip deal was found by Cheapflights users on 10/1. 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.
mar. 11/259:20 pmSTN - IAD
2 stops28h 40mMultiple Airlines
jue. 11/275:30 pmIAD - STN
2 stops25h 10mMultiple Airlines
Deal found 10/1$553
This Mytrip deal was found by Cheapflights users on 10/1. 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.
vie. 11/145:55 amSTN - IAD
2 stops20h 05mMultiple Airlines
lun. 11/175:30 pmIAD - STN
2 stops25h 25mMultiple Airlines
Deal found 10/1$557
This Mytrip deal was found by Cheapflights users on 10/2. 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.
dom. 11/168:15 amSTN - IAD
2 stops35h 25mMultiple Airlines
dom. 11/238:30 pmIAD - STN
2 stops21h 40mMultiple Airlines
Deal found 10/2$558
This Booking.com deal was found by Cheapflights users on 10/2. 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.
jue. 11/206:30 amSTN - IAD
2 stops17h 00mMultiple Airlines
dom. 11/307:40 pmIAD - STN
2 stops12h 40mMultiple Airlines
Deal found 10/2$560
This Mytrip deal was found by Cheapflights users on 10/2. 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.
jue. 10/309:25 amSTN - IAD
2 stops35h 25mMultiple Airlines
jue. 11/66:00 pmIAD - STN
2 stops20h 25mMultiple Airlines
Deal found 10/2$562
This Mytrip deal was found by Cheapflights users on 10/2. 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.
mié. 11/57:40 amSTN - IAD
2 stops18h 20mMultiple Airlines
mié. 11/1210:30 pmIAD - STN
2 stops18h 45mMultiple Airlines
Deal found 10/2$564
This Mytrip deal was found by Cheapflights users on 10/1. 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.
vie. 10/3112:00 pmSTN - IAD
2 stops33h 40mMultiple Airlines
jue. 11/64:30 pmIAD - STN
2 stops22h 35mMultiple Airlines
Deal found 10/1$565

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 octubre 2, 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

jue. 11/20

6:30 am-6:30 pm

2 stops17h 00m

Washington, D.C. Dulles Intl

dom. 11/23

7:40 pm-6:20 pm

2 stops17h 40m

$529

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

lun. 11/24

8:05 am-2:35 pm

2 stops35h 30m

Washington, D.C. Dulles Intl

vie. 12/5

10:30 pm-12:10 am

2 stops20h 40m

$553

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

sáb. 11/15

8:10 pm-9:00 pm

2 stops29h 50m

Washington, D.C. Dulles Intl

vie. 11/28

10:30 pm-12:10 am

2 stops20h 40m

$585

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

lun. 10/27

10:15 am-5:40 pm

2 stops35h 25m

Washington, D.C. Dulles Intl

dom. 11/2

8:30 pm-9:20 pm

2 stops19h 50m

$597

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

mié. 11/5

2:15 pm-3:15 pm

2 stops30h 00m

Washington, D.C. Dulles Intl

dom. 11/9

10:30 pm-8:55 pm

2 stops17h 25m

$608

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

jue. 11/13

6:10 pm-4:05 pm

2 stops26h 55m

Washington, D.C. Dulles Intl

dom. 11/23

6:50 pm-7:40 pm

2 stops19h 50m

$640

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

sáb. 11/1

11:00 am-5:40 pm

2 stops34h 40m

Washington, D.C. Dulles Intl

mié. 11/5

6:00 pm-10:15 pm

2 stops23h 15m

$663

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

jue. 10/30

8:10 am-9:05 pm

2 stops16h 55m

Washington, D.C. Dulles Intl

mié. 11/12

6:00 pm-8:50 pm

2 stops21h 50m

$676

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

sáb. 11/8

8:45 pm-9:00 pm

2 stops29h 15m

Washington, D.C. Dulles Intl

sáb. 11/15

5:30 pm-3:10 pm

2 stops16h 40m

$693

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

mié. 11/5

4:20 pm-3:15 pm

1 stop27h 55m

Washington, D.C. Dulles Intl

vie. 11/14

10:30 pm-12:10 am

2 stops20h 40m

$695

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/1

Showing 1-10 of 20 results
1
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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.

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

    Currently, August is the cheapest month in which you can book a flight from London Stansted Airport to Washington, D.C. Dulles Intl Airport (average of $292). Flying from London Stansted Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 Washington, D.C. Dulles Intl Airport?

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

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