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Cheap flights from Washington, D.C. Dulles Intl Airport to London from £205

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 12/11. 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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0 bags
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to London

Cheap return flights

Multiple Airlines Logo
19:40 - 14:00IAD-LTN
13h 20m1 stop
Multiple Airlines Logo
08:00 - 18:30LTN-IAD
15h 30m1 stop
£387Multiple Airlines
Find Deal
Mon, 1 Dec - Mon, 8 Dec
Multiple Airlines Logo
19:40 - 14:00IAD-LTN
13h 20m1 stop
Multiple Airlines Logo
08:00 - 18:30LTN-IAD
15h 30m1 stop
£392Multiple Airlines
Find Deal
Mon, 1 Dec - Mon, 8 Dec
Multiple Airlines Logo
19:40 - 12:55IAD-LTN
12h 15m1 stop
Multiple Airlines Logo
08:00 - 18:30LTN-IAD
15h 30m1 stop
£393Multiple Airlines
Find Deal
Wed, 3 Dec - Mon, 8 Dec
Multiple Airlines Logo
19:40 - 12:55IAD-LTN
12h 15m1 stop
Multiple Airlines Logo
08:00 - 18:30LTN-IAD
15h 30m1 stop
£395Multiple Airlines
Find Deal
Wed, 10 Dec - Mon, 15 Dec
Multiple Airlines Logo
19:40 - 12:55IAD-LTN
12h 15m1 stop
Multiple Airlines Logo
08:00 - 18:30LTN-IAD
15h 30m1 stop
£400Multiple Airlines
Find Deal
Wed, 10 Dec - Mon, 15 Dec
Multiple Airlines Logo
17:30 - 22:25IAD-LTN
23h 55m2 stops
Multiple Airlines Logo
17:00 - 15:15LTN-IAD
27h 15m2 stops
£402Multiple Airlines
Find Deal
Tue, 18 Nov - Sun, 23 Nov
Multiple Airlines Logo
19:40 - 14:00IAD-LTN
13h 20m1 stop
Multiple Airlines Logo
08:00 - 18:30LTN-IAD
15h 30m1 stop
£405Multiple Airlines
Find Deal
Mon, 24 Nov - Wed, 3 Dec
Multiple Airlines Logo
19:40 - 14:00IAD-LTN
13h 20m1 stop
Multiple Airlines Logo
06:00 - 18:30LTN-IAD
17h 30m1 stop
£407Multiple Airlines
Find Deal
Mon, 24 Nov - Thu, 4 Dec
Multiple Airlines Logo
19:40 - 14:50IAD-LTN
14h 10m1 stop
Multiple Airlines Logo
07:00 - 18:30LTN-IAD
16h 30m1 stop
£408Multiple Airlines
Find Deal
Tue, 18 Nov - Tue, 25 Nov
Multiple Airlines Logo
19:40 - 12:55IAD-LTN
12h 15m1 stop
Multiple Airlines Logo
08:00 - 18:30LTN-IAD
15h 30m1 stop
£414Multiple Airlines
Find Deal
Wed, 12 Nov - Wed, 26 Nov

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. Dulles Intl Airport to London Luton 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 25 September 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to London Luton Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 1/12

19:40-14:00

1 stop13h 20m

London Luton

Mon 8/12

08:00-18:30

1 stop15h 30m

£387

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 1/12

19:40-14:00

1 stop13h 20m

London Luton

Mon 8/12

08:00-18:30

1 stop15h 30m

£392

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 3/12

19:40-12:55

1 stop12h 15m

London Luton

Mon 8/12

08:00-18:30

1 stop15h 30m

£393

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 10/12

19:40-12:55

1 stop12h 15m

London Luton

Mon 15/12

08:00-18:30

1 stop15h 30m

£395

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 10/12

19:40-12:55

1 stop12h 15m

London Luton

Mon 15/12

08:00-18:30

1 stop15h 30m

£400

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 18/11

17:30-22:25

2 stops23h 55m

London Luton

Sun 23/11

17:00-15:15

2 stops27h 15m

£402

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 24/11

19:40-14:00

1 stop13h 20m

London Luton

Wed 3/12

08:00-18:30

1 stop15h 30m

£405

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 24/11

19:40-14:00

1 stop13h 20m

London Luton

Thu 4/12

06:00-18:30

1 stop17h 30m

£407

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 18/11

19:40-14:50

1 stop14h 10m

London Luton

Tue 25/11

07:00-18:30

1 stop16h 30m

£408

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 12/11

19:40-12:55

1 stop12h 15m

London Luton

Wed 26/11

08:00-18:30

1 stop15h 30m

£414

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 Luton 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 Luton 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 Luton Airport (IAD to LTN) 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 Luton Airport

Direct flights

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

    The distance between Washington, D.C. Dulles Intl and London Luton is about 3659.1 mi. By plane, this route typically takes 12h 15m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to London Luton Airport are refreshed on a daily basis.

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

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

    The travel and health documents required for your trip to London Luton 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 Luton 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 Luton 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 Luton 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 Luton 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?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Travelling to a place near London?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to London . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Washington, D.C. to London flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Washington, D.C. and London 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 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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