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Cheap flights from London Stansted Airport to Washington, D.C. from £406

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Stansted Airport to Washington, D.C. departing on 1/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from London Stansted Airport to Washington, D.C.

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:30 - 19:20
STN
-
IAD
17h 50m
2 stops
Multiple Airlines Logo
20:30 - 19:25
IAD
-
STN
17h 55m
2 stops
£494Multiple Airlines
Thu, 30 Jul - Mon, 3 Aug
Multiple Airlines Logo
06:30 - 19:20
STN
-
IAD
17h 50m
2 stops
Multiple Airlines Logo
20:30 - 19:25
IAD
-
STN
17h 55m
2 stops
£495Multiple Airlines
Thu, 30 Jul - Mon, 3 Aug
Multiple Airlines Logo
06:35 - 22:15
STN
-
IAD
20h 40m
2 stops
Multiple Airlines Logo
20:30 - 17:35
IAD
-
STN
16h 05m
2 stops
£498Multiple Airlines
Fri, 4 Sep - Tue, 8 Sep
Multiple Airlines Logo
06:35 - 19:20
STN
-
IAD
17h 45m
2 stops
Multiple Airlines Logo
20:30 - 16:50
IAD
-
STN
15h 20m
2 stops
£500Multiple Airlines
Fri, 28 Aug - Sun, 6 Sep
Multiple Airlines Logo
06:35 - 22:15
STN
-
IAD
20h 40m
2 stops
Multiple Airlines Logo
20:30 - 19:35
IAD
-
STN
18h 05m
2 stops
£513Multiple Airlines
Fri, 3 Jul - Tue, 14 Jul
Multiple Airlines Logo
06:30 - 19:20
STN
-
IAD
17h 50m
2 stops
Multiple Airlines Logo
20:30 - 23:20
IAD
-
STN
21h 50m
2 stops
£515Multiple Airlines
Thu, 23 Jul - Mon, 27 Jul
Multiple Airlines Logo
08:30 - 22:15
STN
-
IAD
18h 45m
2 stops
Multiple Airlines Logo
20:30 - 23:20
IAD
-
STN
21h 50m
2 stops
£517Multiple Airlines
Wed, 29 Jul - Wed, 5 Aug
Multiple Airlines Logo
06:35 - 19:20
STN
-
IAD
17h 45m
2 stops
Multiple Airlines Logo
20:30 - 17:05
IAD
-
STN
15h 35m
2 stops
£519Multiple Airlines
Fri, 10 Jul - Mon, 13 Jul
Multiple Airlines Logo
06:30 - 19:20
STN
-
IAD
17h 50m
2 stops
Multiple Airlines Logo
20:30 - 19:25
IAD
-
STN
17h 55m
2 stops
£531Multiple Airlines
Thu, 1 Oct - Mon, 5 Oct
Multiple Airlines Logo
06:05 - 19:20
STN
-
IAD
18h 15m
2 stops
Multiple Airlines Logo
20:30 - 22:50
IAD
-
STN
21h 20m
2 stops
£541Multiple Airlines
Thu, 9 Jul - Mon, 27 Jul

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Customise your flight search to find flights from London Stansted Airport to Washington, D.C. Dulles Intl Airport 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, momondo users made 279,928 searches. Data last updated 14 June 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 30/7

06:30-19:20

2 stops17h 50m

Washington, D.C. Dulles Intl

Mon 3/8

20:30-19:25

2 stops17h 55m

£494

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 30/7

06:30-19:20

2 stops17h 50m

Washington, D.C. Dulles Intl

Mon 3/8

20:30-19:25

2 stops17h 55m

£495

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 4/9

06:35-22:15

2 stops20h 40m

Washington, D.C. Dulles Intl

Tue 8/9

20:30-17:35

2 stops16h 05m

£498
Fastest return journey

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 28/8

06:35-19:20

2 stops17h 45m

Washington, D.C. Dulles Intl

Sun 6/9

20:30-16:50

2 stops15h 20m

£500

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 3/7

06:35-22:15

2 stops20h 40m

Washington, D.C. Dulles Intl

Tue 14/7

20:30-19:35

2 stops18h 05m

£513

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 23/7

06:30-19:20

2 stops17h 50m

Washington, D.C. Dulles Intl

Mon 27/7

20:30-23:20

2 stops21h 50m

£515

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 29/7

08:30-22:15

2 stops18h 45m

Washington, D.C. Dulles Intl

Wed 5/8

20:30-23:20

2 stops21h 50m

£517

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 10/7

06:35-19:20

2 stops17h 45m

Washington, D.C. Dulles Intl

Mon 13/7

20:30-17:05

2 stops15h 35m

£519

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 1/10

06:30-19:20

2 stops17h 50m

Washington, D.C. Dulles Intl

Mon 5/10

20:30-19:25

2 stops17h 55m

£531

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 9/7

06:05-19:20

2 stops18h 15m

Washington, D.C. Dulles Intl

Mon 27/7

20:30-22:50

2 stops21h 20m

£541

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from London Stansted Airport to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, Thursday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from London Stansted Airport. The lowest ticket price found for a Thursday departure recently was £572. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from London Stansted Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £618.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is at midday when flights can be purchased for as low as £575. In contrast, the most expensive time of day to depart to Washington, D.C. Dulles Intl Airport is in the morning when prices are around £591.

When to book flights from London Stansted Airport to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London Stansted Airport to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Stansted Airport to Washington, D.C. Dulles Intl Airport (STN to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Stansted Airport to Washington, D.C. Dulles Intl Airport

Fastest flight time

11h 45m

Direct flights

None
The fastest flight from London Stansted Airport to Washington, D.C. Dulles Intl Airport takes 11h 45m
There are no direct flights from London Stansted Airport to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from London Stansted Airport to Washington, D.C. Dulles Intl Airport.
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Frequently asked questions about flying from London Stansted Airport to Washington, D.C. Dulles Intl Airport

  • How far is London Stansted to Washington, D.C. Dulles Intl by plane?

    Washington, D.C. Dulles Intl is 3683.3 mi away from London Stansted. 11h 45m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Stansted Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from London Stansted Airport to Washington, D.C. Dulles Intl Airport refresh daily.

  • How old do you have to be to fly from London Stansted Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
College Park
Springfield
Fairfax
Arlington
Gettysburg
Linthicum Heights
Front Royal
Winchester
Glen Burnie
Ellicott City
Cambridge
Laurel
Lutherville Timonium
Westminster
Ashburn
Lexington Park
Leesburg
Owings Mills
Woodbridge

Why use momondo?

Why should I use momondo to find a flight deal from London to Washington, D.C.?

Finding the right flight to Washington, D.C. from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from London to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from London with this policy.

How can momondo help me find flights from London to Washington, D.C.?

momondo helps you find the best flight between London and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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