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Cheap flights from Washington, D.C. Dulles Intl Airport to London from £199

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. Dulles Intl Airport to London departing on 3/11. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to London (IAD-STN)

Cheap return flights

Logo
20:30 - 19:20IAD-STN
17h 50m2 stops
Logo
11:15 - 22:10STN-IAD
15h 55m2 stops
£369
Find Deal
sab, 4 ott - sab, 11 ott
Logo
20:30 - 19:25IAD-STN
17h 55m2 stops
Logo
06:05 - 22:10STN-IAD
21h 05m2 stops
£372
Find Deal
dom, 5 ott - ven, 10 ott
Logo
18:05 - 07:50IAD-STN
9h 45m1 stop
Logo
06:30 - 19:30STN-IAD
18h 00m1 stop
£374
Find Deal
mer, 29 ott - mer, 5 nov
Logo
19:40 - 18:30IAD-STN
17h 50m2 stops
Logo
21:20 - 18:30STN-IAD
26h 10m2 stops
£376
Find Deal
ven, 14 nov - lun, 24 nov
Logo
20:30 - 19:20IAD-STN
17h 50m2 stops
Logo
11:15 - 22:10STN-IAD
15h 55m2 stops
£377
Find Deal
sab, 4 ott - sab, 11 ott
Logo
20:30 - 21:45IAD-STN
20h 15m2 stops
Logo
06:05 - 22:10STN-IAD
21h 05m2 stops
£382
Find Deal
dom, 12 ott - ven, 17 ott
Logo
22:00 - 19:35IAD-STN
17h 35m1 stop
Logo
06:30 - 19:30STN-IAD
18h 00m1 stop
£383
Find Deal
mer, 29 ott - mer, 5 nov
Logo
18:05 - 07:50IAD-STN
9h 45m1 stop
Logo
06:30 - 19:30STN-IAD
18h 00m1 stop
£384
Find Deal
mar, 28 ott - mar, 4 nov
Logo
09:35 - 11:50IAD-STN
21h 15m2 stops
Logo
21:30 - 21:05STN-IAD
28h 35m2 stops
£386
Find Deal
lun, 13 ott - lun, 20 ott
Logo
19:40 - 20:55IAD-STN
20h 15m2 stops
Logo
21:20 - 18:30STN-IAD
26h 10m2 stops
£389
Find Deal
mer, 12 nov - lun, 17 nov

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 5 settembre 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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

sab 4/10

20:30-19:20

2 stops17h 50m

London Stansted

sab 11/10

11:15-22:10

2 stops15h 55m

£369

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

dom 5/10

20:30-19:25

2 stops17h 55m

London Stansted

ven 10/10

06:05-22:10

2 stops21h 05m

£372

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

mer 29/10

18:05-07:50

1 stop9h 45m

London Stansted

mer 5/11

06:30-19:30

1 stop18h 00m

£374

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

ven 14/11

19:40-18:30

2 stops17h 50m

London Stansted

lun 24/11

21:20-18:30

2 stops26h 10m

£376

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

sab 4/10

20:30-19:20

2 stops17h 50m

London Stansted

sab 11/10

11:15-22:10

2 stops15h 55m

£377

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

dom 12/10

20:30-21:45

2 stops20h 15m

London Stansted

ven 17/10

06:05-22:10

2 stops21h 05m

£382

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

mer 29/10

22:00-19:35

1 stop17h 35m

London Stansted

mer 5/11

06:30-19:30

1 stop18h 00m

£383

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

mar 28/10

18:05-07:50

1 stop9h 45m

London Stansted

mar 4/11

06:30-19:30

1 stop18h 00m

£384

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

lun 13/10

09:35-11:50

2 stops21h 15m

London Stansted

lun 20/10

21:30-21:05

2 stops28h 35m

£386

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

mer 12/11

19:40-20:55

2 stops20h 15m

London Stansted

lun 17/11

21:20-18:30

2 stops26h 10m

£389

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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When to book flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport

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

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

Direct flights

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

    The distance between Washington, D.C. Dulles Intl and London Stansted is about 3683.3 mi. A reasonable flight in good conditions will take 9h 45m.

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

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

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

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

    The travel and health documents required for your trip to London Stansted Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Stansted Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Washington, D.C. Dulles Intl Airport from London Stansted Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
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Luton
Maidstone
Gatwick
Slough
Canterbury
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Ipswich
Ilford
Guildford
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Worthing
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Dover
Hayes
Dartford
Hounslow
Winchester
Folkestone

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?

All flight searches from Washington, D.C. to London on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Washington, D.C. to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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.

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