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Cheap flights from Washington, D.C. Dulles Intl Airport to London from £162

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 24/10. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to London (IAD-LTN)

Cheap return flights

Logo
17:20 - 09:25IAD-LTN
11h 05m1 stop
Logo
13:10 - 19:30LTN-IAD
11h 20m1 stop
£376
Find Deal
Tue, 16 Sep - Tue, 23 Sep
Logo
17:20 - 08:35IAD-LTN
10h 15m1 stop
Logo
12:35 - 18:55LTN-IAD
11h 20m1 stop
£377
Find Deal
Sun, 14 Sep - Thu, 18 Sep
Logo
17:20 - 08:10IAD-LTN
9h 50m1 stop
Logo
10:00 - 19:30LTN-IAD
14h 30m1 stop
£379
Find Deal
Wed, 10 Sep - Tue, 16 Sep
Logo
22:05 - 20:40IAD-LTN
17h 35m2 stops
Logo
08:30 - 19:59LTN-IAD
16h 29m2 stops
£397
Find Deal
Sun, 19 Oct - Wed, 22 Oct
Logo
22:05 - 20:40IAD-LTN
17h 35m2 stops
Logo
08:30 - 19:59LTN-IAD
16h 29m2 stops
£398
Find Deal
Thu, 2 Oct - Mon, 6 Oct
Logo
21:00 - 15:25IAD-LTN
13h 25m1 stop
Logo
13:10 - 19:30LTN-IAD
11h 20m1 stop
£404
Find Deal
Wed, 10 Sep - Tue, 16 Sep
Logo
19:40 - 14:25IAD-LTN
13h 45m1 stop
Logo
07:30 - 18:20LTN-IAD
15h 50m1 stop
£410
Find Deal
Tue, 18 Nov - Wed, 3 Dec
Logo
17:20 - 08:35IAD-LTN
10h 15m1 stop
Logo
09:00 - 18:55LTN-IAD
14h 55m1 stop
£413
Find Deal
Sun, 14 Sep - Mon, 22 Sep
Logo
22:05 - 19:05IAD-LTN
16h 00m2 stops
Logo
08:25 - 19:59LTN-IAD
16h 34m2 stops
£416
Find Deal
Fri, 3 Oct - Mon, 6 Oct
Logo
17:20 - 08:10IAD-LTN
9h 50m1 stop
Logo
10:00 - 19:30LTN-IAD
14h 30m1 stop
£419
Find Deal
Wed, 3 Sep - Wed, 10 Sep

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 7 August 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

Tue 16/9

17:20-09:25

1 stop11h 05m

London Luton

Tue 23/9

13:10-19:30

1 stop11h 20m

£376

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 14/9

17:20-08:35

1 stop10h 15m

London Luton

Thu 18/9

12:35-18:55

1 stop11h 20m

£377

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 10/9

17:20-08:10

1 stop9h 50m

London Luton

Tue 16/9

10:00-19:30

1 stop14h 30m

£379

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 19/10

22:05-20:40

2 stops17h 35m

London Luton

Wed 22/10

08:30-19:59

2 stops16h 29m

£397

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Thu 2/10

22:05-20:40

2 stops17h 35m

London Luton

Mon 6/10

08:30-19:59

2 stops16h 29m

£398

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 10/9

21:00-15:25

1 stop13h 25m

London Luton

Tue 16/9

13:10-19:30

1 stop11h 20m

£404

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 18/11

19:40-14:25

1 stop13h 45m

London Luton

Wed 3/12

07:30-18:20

1 stop15h 50m

£410

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 14/9

17:20-08:35

1 stop10h 15m

London Luton

Mon 22/9

09:00-18:55

1 stop14h 55m

£413

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Fri 3/10

22:05-19:05

2 stops16h 00m

London Luton

Mon 6/10

08:25-19:59

2 stops16h 34m

£416

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 3/9

17:20-08:10

1 stop9h 50m

London Luton

Wed 10/9

10:00-19:30

1 stop14h 30m

£419

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Best price found

£162

Fastest flight time

9h 50m

Direct flights

None
The best one-way flight to London Luton Airport from Washington, D.C. Dulles Intl Airport in the past 72 hours is £162. The best return flight deal from Washington, D.C. Dulles Intl Airport to London Luton Airport found on momondo in the last 72 hours is £376.
The fastest flight from Washington, D.C. Dulles Intl Airport to London Luton Airport takes 9h 50m
There are no direct flights from Washington, D.C. Dulles Intl Airport to London Luton Airport. Popular non-direct route for this connection is Washington, D.C. Dulles Intl Airport - 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 50m.

  • 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?

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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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