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Cheap flights from London Stansted Airport to Washington, D.C. from £236

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 12/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
21:20 - 21:00STN-IAD
28h 40m2 stops
Multiple Airlines Logo
17:30 - 16:55IAD-STN
18h 25m2 stops
£411Multiple Airlines
Find Deal
Tue, 2 Dec - Mon, 8 Dec
Multiple Airlines Logo
08:30 - 15:35STN-IAD
12h 05m1 stop
Multiple Airlines Logo
21:00 - 20:35IAD-STN
18h 35m1 stop
£416Multiple Airlines
Find Deal
Mon, 15 Dec - Tue, 30 Dec
Multiple Airlines Logo
06:30 - 16:35STN-IAD
14h 05m1 stop
Multiple Airlines Logo
17:05 - 07:50IAD-STN
9h 45m1 stop
£425Multiple Airlines
Find Deal
Sat, 1 Nov - Thu, 6 Nov
Multiple Airlines Logo
06:30 - 15:35STN-IAD
14h 05m1 stop
Multiple Airlines Logo
21:00 - 14:50IAD-STN
12h 50m1 stop
£432Multiple Airlines
Find Deal
Fri, 12 Dec - Sun, 14 Dec
Multiple Airlines Logo
06:30 - 18:40STN-BWI
17h 10m2 stops
Multiple Airlines Logo
19:40 - 18:20BWI-STN
17h 40m2 stops
£433Multiple Airlines
Find Deal
Fri, 7 Nov - Tue, 11 Nov
Multiple Airlines Logo
13:55 - 16:05STN-IAD
31h 10m2 stops
Multiple Airlines Logo
21:25 - 20:15IAD-STN
17h 50m2 stops
£434Multiple Airlines
Find Deal
Fri, 5 Dec - Tue, 9 Dec
Multiple Airlines Logo
06:30 - 15:35STN-IAD
14h 05m1 stop
Multiple Airlines Logo
17:05 - 07:50IAD-STN
9h 45m1 stop
£434Multiple Airlines
Find Deal
Sat, 6 Dec - Sat, 13 Dec
Multiple Airlines Logo
06:30 - 15:35STN-IAD
14h 05m1 stop
Multiple Airlines Logo
17:05 - 14:50IAD-STN
16h 45m1 stop
£438Multiple Airlines
Find Deal
Fri, 5 Dec - Fri, 12 Dec
Multiple Airlines Logo
06:30 - 18:40STN-BWI
17h 10m2 stops
Multiple Airlines Logo
19:40 - 18:20BWI-STN
17h 40m2 stops
£443Multiple Airlines
Find Deal
Fri, 12 Dec - Mon, 15 Dec
Multiple Airlines Logo
06:55 - 18:30STN-IAD
16h 35m2 stops
Multiple Airlines Logo
19:40 - 18:00IAD-STN
17h 20m2 stops
£449Multiple Airlines
Find Deal
Sat, 6 Dec - Sat, 13 Dec

momondo Fare Finder

 
Customise your flight search to find flights from London Stansted Airport to Washington, D.C. 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 23 October 2025.
Use the filters below to find and compare flights from London Stansted Airport to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Tue 2/12

21:20-21:00

2 stops28h 40m

Washington, D.C. Dulles Intl

Mon 8/12

17:30-16:55

2 stops18h 25m

£411

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 15/12

08:30-15:35

1 stop12h 05m

Washington, D.C. Dulles Intl

Tue 30/12

21:00-20:35

1 stop18h 35m

£416

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Sat 1/11

06:30-16:35

1 stop14h 05m

Washington, D.C. Dulles Intl

Thu 6/11

17:05-07:50

1 stop9h 45m

£425

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 12/12

06:30-15:35

1 stop14h 05m

Washington, D.C. Dulles Intl

Sun 14/12

21:00-14:50

1 stop12h 50m

£432

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Fri 7/11

06:30-18:40

2 stops17h 10m

Baltimore/Washington

Tue 11/11

19:40-18:20

2 stops17h 40m

£433

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 5/12

13:55-16:05

2 stops31h 10m

Washington, D.C. Dulles Intl

Tue 9/12

21:25-20:15

2 stops17h 50m

£434

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Sat 6/12

06:30-15:35

1 stop14h 05m

Washington, D.C. Dulles Intl

Sat 13/12

17:05-07:50

1 stop9h 45m

£434

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 5/12

06:30-15:35

1 stop14h 05m

Washington, D.C. Dulles Intl

Fri 12/12

17:05-14:50

1 stop16h 45m

£438

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Fri 12/12

06:30-18:40

2 stops17h 10m

Baltimore/Washington

Mon 15/12

19:40-18:20

2 stops17h 40m

£443

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Sat 6/12

06:55-18:30

2 stops16h 35m

Washington, D.C. Dulles Intl

Sat 13/12

19:40-18:00

2 stops17h 20m

£449

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.

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.?

On average, the least expensive day to fly to Washington, D.C. from London Stansted Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £607. However, this price may fluctuate depending on the airline, the season, and holidays. 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 £684.

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

In the evening is the cheapest time of day to fly from London Stansted Airport to Washington, D.C. when you can find flight prices for as low as £514. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the afternoon, with an average ticket price of £640. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Are you open to changing your travel dates? Check out the ideal times to fly from London Stansted Airport to Washington, D.C. 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. (STN to WAS) flight deals and tips

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

Direct flights

None
There are no direct flights from London Stansted Airport to Washington, D.C.. There are no popular flight routes from London Stansted Airport to Washington, D.C..
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  • How far is London Stansted to Washington, D.C. by plane?

    A flight from London Stansted to Washington, D.C. will travel around 3668.5 mi. By plane, this route typically takes 11h 00m.

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

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

  • How many operators does momondo search for flights from London Stansted Airport to Washington, D.C.?

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

    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..

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

    The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from London Stansted Airport to Washington, D.C.?

Best airlines flying from London Stansted Airport to Washington, D.C.

Compare and see reviews for airlines that fly from London Stansted Airport to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom £269Free CancellationRating
7.0
103 reviews
Search PLAY flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Laurel
College Park
Alexandria
Fairfax
Linthicum Heights
Bethesda
Gettysburg
Cambridge
Ellicott City
Westminster
Arlington
Woodbridge
Owings Mills
Silver Spring
National Harbor

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Washington, D.C. from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Washington, D.C. from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of London to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport