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Cheap flights from Washington, D.C. Dulles Intl Airport to London from £214

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 10/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:50 - 20:10IAD-LTN
22h 20m2 stops
Multiple Airlines Logo
14:40 - 18:50LTN-IAD
33h 10m2 stops
£429Multiple Airlines
Find Deal
Mon, 19 Jan - Fri, 23 Jan
Multiple Airlines Logo
20:30 - 20:10IAD-LTN
18h 40m2 stops
Multiple Airlines Logo
20:50 - 16:40LTN-IAD
24h 50m2 stops
£429Multiple Airlines
Find Deal
Tue, 25 Nov - Mon, 1 Dec
Multiple Airlines Logo
20:30 - 20:10IAD-LTN
18h 40m2 stops
Multiple Airlines Logo
20:50 - 15:50LTN-IAD
24h 00m2 stops
£430Multiple Airlines
Find Deal
Tue, 25 Nov - Tue, 2 Dec
Multiple Airlines Logo
17:05 - 08:35IAD-LTN
10h 30m1 stop
Multiple Airlines Logo
05:50 - 15:35LTN-IAD
14h 45m1 stop
£431Multiple Airlines
Find Deal
Mon, 8 Dec - Fri, 12 Dec
Multiple Airlines Logo
09:00 - 20:10IAD-LTN
30h 10m3 stops
Multiple Airlines Logo
20:50 - 15:50LTN-IAD
24h 00m2 stops
£433Multiple Airlines
Find Deal
Tue, 25 Nov - Tue, 2 Dec
Multiple Airlines Logo
16:50 - 22:45IAD-LTN
24h 55m2 stops
Multiple Airlines Logo
15:55 - 18:50LTN-IAD
31h 55m3 stops
£434Multiple Airlines
Find Deal
Mon, 19 Jan - Fri, 23 Jan
Multiple Airlines Logo
19:40 - 17:05IAD-LTN
16h 25m2 stops
Multiple Airlines Logo
06:00 - 18:30LTN-IAD
17h 30m2 stops
£435Multiple Airlines
Find Deal
Wed, 11 Feb - Mon, 16 Feb
Multiple Airlines Logo
17:05 - 08:35IAD-LTN
10h 30m1 stop
Multiple Airlines Logo
05:50 - 15:35LTN-IAD
14h 45m1 stop
£437Multiple Airlines
Find Deal
Mon, 19 Jan - Fri, 23 Jan
Multiple Airlines Logo
19:40 - 15:25IAD-LTN
14h 45m2 stops
Multiple Airlines Logo
09:00 - 18:30LTN-IAD
14h 30m2 stops
£438Multiple Airlines
Find Deal
Fri, 16 Jan - Tue, 20 Jan
Multiple Airlines Logo
20:30 - 22:55IAD-LTN
21h 25m3 stops
Multiple Airlines Logo
14:40 - 17:15LTN-IAD
31h 35m3 stops
£440Multiple Airlines
Find Deal
Wed, 28 Jan - Sun, 1 Feb

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 14 November 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 19/1

16:50-20:10

2 stops22h 20m

London Luton

Fri 23/1

14:40-18:50

2 stops33h 10m

£429

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 25/11

20:30-20:10

2 stops18h 40m

London Luton

Mon 1/12

20:50-16:40

2 stops24h 50m

£429

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 25/11

20:30-20:10

2 stops18h 40m

London Luton

Tue 2/12

20:50-15:50

2 stops24h 00m

£430

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 8/12

17:05-08:35

1 stop10h 30m

London Luton

Fri 12/12

05:50-15:35

1 stop14h 45m

£431

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 25/11

09:00-20:10

3 stops30h 10m

London Luton

Tue 2/12

20:50-15:50

2 stops24h 00m

£433

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 19/1

16:50-22:45

2 stops24h 55m

London Luton

Fri 23/1

15:55-18:50

3 stops31h 55m

£434

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 11/2

19:40-17:05

2 stops16h 25m

London Luton

Mon 16/2

06:00-18:30

2 stops17h 30m

£435

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 19/1

17:05-08:35

1 stop10h 30m

London Luton

Fri 23/1

05:50-15:35

1 stop14h 45m

£437

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Fri 16/1

19:40-15:25

2 stops14h 45m

London Luton

Tue 20/1

09:00-18:30

2 stops14h 30m

£438

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 28/1

20:30-22:55

3 stops21h 25m

London Luton

Sun 1/2

14:40-17:15

3 stops31h 35m

£440

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 London from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to London Luton 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 often are flights from Washington, D.C. to London delayed?

Historically, on average around 20% of flights between Washington, D.C. and London have experienced a delay on any given week. The average delay length over the past 12 months has been 17 minutes.

What is the most punctual flight time for Washington, D.C. to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Washington, D.C. to London flights?

According to our data, Air Seoul have had the fewest delays on this route over the last 12 months, with about 100% of their flights experiencing any sort of delay.

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 9h 30m.

  • 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.

Travelling to a place near London?

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

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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