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Cheap flights from Washington, D.C. to London from £184

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to London departing on 25/2. 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
0 bags
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Find the cheapest flights from Washington, D.C. to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
17:15 - 07:50
IAD
-
STN
9h 35m
1 stop
Multiple Airlines Logo
08:30 - 19:10
STN
-
IAD
15h 40m
1 stop
£388Multiple Airlines
Wed, 6 May - Mon, 11 May
Multiple Airlines Logo
17:15 - 07:50
IAD
-
STN
9h 35m
1 stop
Multiple Airlines Logo
06:30 - 15:45
STN
-
IAD
14h 15m
1 stop
£389Multiple Airlines
Mon, 27 Apr - Fri, 8 May
Multiple Airlines Logo
17:15 - 07:50
IAD
-
STN
9h 35m
1 stop
Multiple Airlines Logo
06:30 - 15:45
STN
-
IAD
14h 15m
1 stop
£390Multiple Airlines
Tue, 28 Apr - Fri, 8 May
Multiple Airlines Logo
13:13 - 22:40
IAD
-
STN
28h 27m
2 stops
Multiple Airlines Logo
08:05 - 20:54
STN
-
IAD
17h 49m
2 stops
£394Multiple Airlines
Wed, 18 Feb - Wed, 25 Feb
Multiple Airlines Logo
09:45 - 16:15
IAD
-
STN
25h 30m
2 stops
Multiple Airlines Logo
08:10 - 20:54
STN
-
IAD
17h 44m
2 stops
£395Multiple Airlines
Sun, 1 Feb - Tue, 10 Feb
Multiple Airlines Logo
09:45 - 16:15
IAD
-
STN
25h 30m
2 stops
Multiple Airlines Logo
08:10 - 20:54
STN
-
IAD
17h 44m
2 stops
£395Multiple Airlines
Sun, 1 Feb - Tue, 10 Feb
Multiple Airlines Logo
17:05 - 07:50
IAD
-
STN
9h 45m
1 stop
Multiple Airlines Logo
08:30 - 15:35
STN
-
IAD
12h 05m
1 stop
£399Multiple Airlines
Wed, 18 Feb - Wed, 25 Feb
Multiple Airlines Logo
21:30 - 22:35
IAD
-
STN
21h 05m
2 stops
Multiple Airlines Logo
06:25 - 21:05
STN
-
IAD
18h 40m
2 stops
£401Multiple Airlines
Sun, 8 Mar - Sun, 15 Mar
Multiple Airlines Logo
22:00 - 18:20
IAD
-
STN
16h 20m
1 stop
Multiple Airlines Logo
08:30 - 15:45
STN
-
IAD
12h 15m
1 stop
£407Multiple Airlines
Sun, 22 Mar - Sun, 29 Mar
Multiple Airlines Logo
21:00 - 17:50
IAD
-
STN
15h 50m
1 stop
Multiple Airlines Logo
06:30 - 15:35
STN
-
IAD
14h 05m
1 stop
£407Multiple Airlines
Wed, 4 Mar - Sun, 8 Mar

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to London Stansted 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 23 January 2026.
Use the filters below to find and compare flights from Washington, D.C. to London Stansted Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 6/5

17:15-07:50

1 stop9h 35m

London Stansted

Mon 11/5

08:30-19:10

1 stop15h 40m

£388

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 27/4

17:15-07:50

1 stop9h 35m

London Stansted

Fri 8/5

06:30-15:45

1 stop14h 15m

£389

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 28/4

17:15-07:50

1 stop9h 35m

London Stansted

Fri 8/5

06:30-15:45

1 stop14h 15m

£390

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 18/2

13:13-22:40

2 stops28h 27m

London Stansted

Wed 25/2

08:05-20:54

2 stops17h 49m

£394

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sun 1/2

09:45-16:15

2 stops25h 30m

London Stansted

Tue 10/2

08:10-20:54

2 stops17h 44m

£395

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sun 1/2

09:45-16:15

2 stops25h 30m

London Stansted

Tue 10/2

08:10-20:54

2 stops17h 44m

£395

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 18/2

17:05-07:50

1 stop9h 45m

London Stansted

Wed 25/2

08:30-15:35

1 stop12h 05m

£399

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sun 8/3

21:30-22:35

2 stops21h 05m

London Stansted

Sun 15/3

06:25-21:05

2 stops18h 40m

£401

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Sun 22/3

22:00-18:20

1 stop16h 20m

London Stansted

Sun 29/3

08:30-15:45

1 stop12h 15m

£407

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 4/3

21:00-17:50

1 stop15h 50m

London Stansted

Sun 8/3

06:30-15:35

1 stop14h 05m

£407

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to London from

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

How long does it take to fly to London Stansted Airport?

Flight times vary depending on what airport in Washington, D.C. you fly out of and what airport in London Stansted Airport you fly into. For example, flying from Baltimore to London Heathrow Airport takes 7h 05m on average. On the other hand, flying from Washington, D.C. to London Heathrow Airport takes 8h 13m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

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

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

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

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

Fastest flight time

9h 45m

Direct flights

None
The fastest flight from Washington, D.C. to London Stansted Airport takes 9h 45m
There are no direct flights from Washington, D.C. to London Stansted Airport. There are no popular flight routes from Washington, D.C. to London Stansted Airport.
Search flight deals

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

    London Stansted is 3668.5 mi away from Washington, D.C.. 9h 45m is a normal flight duration for this route.

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to London Stansted Airport.

  • What documentation or ID do you need to fly to London Stansted Airport?

    The travel and health documents you'll need for your trip to London Stansted Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Stansted Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Luton
Milton Keynes
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Dover
Bedford
Worthing
Ramsgate
Colchester
Folkestone
Winchester

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Washington, D.C..

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to London.

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

If you are not ready to book a flight from Washington, D.C. to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Stansted Airport trip

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