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Cheap flights from Washington, D.C. to London from £147

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 13/10. 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 Washington, D.C. to London

Cheap return flights

Logo
22:05 - 00:45IAD-STN
21h 40m3 stops
Logo
15:30 - 19:59STN-IAD
33h 29m2 stops
£368
Find Deal
Do, 9 Okt - Mo, 13 Okt
Logo
20:40 - 23:20IAD-STN
22h 40m2 stops
Logo
06:30 - 18:30STN-IAD
17h 00m2 stops
£372
Find Deal
Do, 30 Okt - Di, 4 Nov
Logo
17:20 - 10:35IAD-STN
12h 15m1 stop
Logo
10:45 - 19:30STN-IAD
13h 45m1 stop
£373
Find Deal
So, 7 Sep - Di, 16 Sep
Logo
21:00 - 14:20IAD-STN
12h 20m1 stop
Logo
12:25 - 18:55STN-IAD
11h 30m1 stop
£373
Find Deal
Di, 16 Sep - Fr, 19 Sep
Logo
17:20 - 09:30IAD-STN
11h 10m1 stop
Logo
10:45 - 19:30STN-IAD
13h 45m1 stop
£374
Find Deal
So, 7 Sep - Di, 16 Sep
Logo
17:20 - 14:20IAD-STN
16h 00m1 stop
Logo
12:15 - 19:30STN-IAD
12h 15m1 stop
£375
Find Deal
Di, 16 Sep - Di, 23 Sep
Logo
17:20 - 10:35IAD-STN
12h 15m1 stop
Logo
10:45 - 19:30STN-IAD
13h 45m1 stop
£377
Find Deal
So, 7 Sep - Di, 16 Sep
Logo
17:20 - 09:30IAD-STN
11h 10m1 stop
Logo
12:15 - 19:30STN-IAD
12h 15m1 stop
£378
Find Deal
So, 7 Sep - Di, 16 Sep
PLAY Logo
18:50 - 10:40BWI-STN
10h 50m1 stop
PLAY Logo
11:40 - 17:40STN-BWI
11h 00m1 stop
£387PLAY
Find Deal
Mo, 1 Sep - Fr, 5 Sep
PLAY Logo
18:50 - 10:40BWI-STN
10h 50m1 stop
PLAY Logo
11:40 - 17:40STN-BWI
11h 00m1 stop
£388PLAY
Find Deal
Di, 2 Sep - Do, 18 Sep

PLAY flights from Washington, D.C. to London Stansted Airport

Our best PLAY deals on Washington, D.C. to London Stansted Airport flight tickets
PLAY
1 Sept
BWI18:50Baltimore/Washington
10h 50m
1 stop
STN10:40London Stansted
5 Sept
STN11:40London Stansted
11h 00m
1 stop
BWI17:40Baltimore/Washington
£387
Find similar
PLAY
2 Sept
BWI18:50Baltimore/Washington
10h 50m
1 stop
STN10:40London Stansted
18 Sept
STN11:40London Stansted
11h 00m
1 stop
BWI17:40Baltimore/Washington
£388
Find similar
PLAY
10 Sept
BWI18:50Baltimore/Washington
10h 50m
1 stop
STN10:40London Stansted
14 Sept
STN11:40London Stansted
11h 00m
1 stop
BWI17:40Baltimore/Washington
£389
Find similar

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 21 August 2025.
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

Do 9/10

22:05-00:45

3 stops21h 40m

London Stansted

Mo 13/10

15:30-19:59

2 stops33h 29m

£368

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Do 30/10

20:40-23:20

2 stops22h 40m

London Stansted

Di 4/11

06:30-18:30

2 stops17h 00m

£372

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

So 7/9

17:20-10:35

1 stop12h 15m

London Stansted

Di 16/9

10:45-19:30

1 stop13h 45m

£373

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Di 16/9

21:00-14:20

1 stop12h 20m

London Stansted

Fr 19/9

12:25-18:55

1 stop11h 30m

£373

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

So 7/9

17:20-09:30

1 stop11h 10m

London Stansted

Di 16/9

10:45-19:30

1 stop13h 45m

£374

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Di 16/9

17:20-14:20

1 stop16h 00m

London Stansted

Di 23/9

12:15-19:30

1 stop12h 15m

£375

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

So 7/9

17:20-10:35

1 stop12h 15m

London Stansted

Di 16/9

10:45-19:30

1 stop13h 45m

£377

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

So 7/9

17:20-09:30

1 stop11h 10m

London Stansted

Di 16/9

12:15-19:30

1 stop12h 15m

£378

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Mo 1/9

18:50-10:40

1 stop10h 50m

London Stansted

Fr 5/9

11:40-17:40

1 stop11h 00m

£387

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Di 2/9

18:50-10:40

1 stop10h 50m

London Stansted

Do 18/9

11:40-17:40

1 stop11h 00m

£388

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

What is the cheapest month to fly to London Stansted Airport?

The cheapest month to fly to London Stansted Airport from Washington, D.C. is in March. Flight prices, which tend to average around £312, are often lower during this time because this is during the off-season. If you aren’t able to travel to London Stansted Airport during the month of March, then flying in November is also cheap. Prices for this month can be found on momondo for an average of £323.

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

Direct flights

None
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 30m 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
Milton Keynes
Luton
Maidstone
Slough
Gatwick
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Worthing
Dartford
Hounslow
Dover
Chelmsford
Hayes
Folkestone
Bedford

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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