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Cheap flights from Washington, D.C. to London from £170

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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Find the cheapest flights from Washington, D.C. to London

Cheap return flights

Logo
19:40 - 23:05IAD-LTN
22h 25m2 stops
Logo
09:00 - 18:30LTN-IAD
14h 30m2 stops
£370
Find Deal
Wed, 3 Dec - Tue, 9 Dec
Logo
20:30 - 16:35IAD-LTN
15h 05m2 stops
Logo
06:00 - 19:30LTN-IAD
17h 30m2 stops
£373
Find Deal
Thu, 23 Oct - Sat, 1 Nov
Logo
20:40 - 20:05IAD-LTN
19h 25m2 stops
Logo
09:00 - 18:30LTN-IAD
14h 30m2 stops
£375
Find Deal
Tue, 28 Oct - Tue, 4 Nov
Logo
20:40 - 20:05IAD-LTN
19h 25m2 stops
Logo
09:00 - 18:30LTN-IAD
14h 30m2 stops
£375
Find Deal
Tue, 28 Oct - Tue, 4 Nov
Logo
19:40 - 22:00IAD-LTN
21h 20m2 stops
Logo
09:00 - 18:30LTN-IAD
14h 30m2 stops
£377
Find Deal
Sun, 2 Nov - Sat, 8 Nov
Logo
19:40 - 16:05IAD-LTN
15h 25m2 stops
Logo
06:00 - 18:30LTN-IAD
17h 30m2 stops
£383
Find Deal
Sat, 6 Dec - Sat, 13 Dec
Logo
20:30 - 21:45IAD-LTN
20h 15m2 stops
Logo
08:05 - 18:30LTN-IAD
15h 25m2 stops
£385
Find Deal
Fri, 24 Oct - Sun, 2 Nov
Logo
18:50 - 18:30BWI-LTN
18h 40m2 stops
Logo
06:05 - 17:40LTN-BWI
16h 35m2 stops
£389
Find Deal
Mon, 13 Oct - Wed, 22 Oct
Logo
19:40 - 16:05IAD-LTN
15h 25m2 stops
Logo
06:00 - 18:30LTN-IAD
17h 30m2 stops
£394
Find Deal
Sat, 6 Dec - Sat, 13 Dec
Logo
19:40 - 12:55IAD-LTN
12h 15m1 stop
Logo
07:00 - 18:30LTN-IAD
16h 30m1 stop
£398
Find Deal
Wed, 3 Dec - Tue, 9 Dec

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. 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 15 September 2025.
Use the filters below to find and compare flights from Washington, D.C. 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

Wed 3/12

19:40-23:05

2 stops22h 25m

London Luton

Tue 9/12

09:00-18:30

2 stops14h 30m

£370

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Thu 23/10

20:30-16:35

2 stops15h 05m

London Luton

Sat 1/11

06:00-19:30

2 stops17h 30m

£373

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 28/10

20:40-20:05

2 stops19h 25m

London Luton

Tue 4/11

09:00-18:30

2 stops14h 30m

£375

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 28/10

20:40-20:05

2 stops19h 25m

London Luton

Tue 4/11

09:00-18:30

2 stops14h 30m

£375

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 2/11

19:40-22:00

2 stops21h 20m

London Luton

Sat 8/11

09:00-18:30

2 stops14h 30m

£377

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sat 6/12

19:40-16:05

2 stops15h 25m

London Luton

Sat 13/12

06:00-18:30

2 stops17h 30m

£383

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Fri 24/10

20:30-21:45

2 stops20h 15m

London Luton

Sun 2/11

08:05-18:30

2 stops15h 25m

£385

BaltimoreLondon

BWI - LTN

BWILTN

Baltimore/Washington

Mon 13/10

18:50-18:30

2 stops18h 40m

London Luton

Wed 22/10

06:05-17:40

2 stops16h 35m

£389

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sat 6/12

19:40-16:05

2 stops15h 25m

London Luton

Sat 13/12

06:00-18:30

2 stops17h 30m

£394

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 3/12

19:40-12:55

1 stop12h 15m

London Luton

Tue 9/12

07:00-18:30

1 stop16h 30m

£398

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. 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 long does it take to fly to London Luton Airport?

If you’re flying from a popular airport in Washington, D.C., such as Baltimore or Washington, D.C., and flying into London Luton Airport, then you can expect flight times to average 7h 05m and 8h 32m, respectively.

When to book flights from Washington, D.C. to London Luton Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to London Luton Airport (WAS to LTN) flight deals and tips

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

Direct flights

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

    A flight from Washington, D.C. to London Luton will travel around 3644.3 mi. Flights usually cover this in 9h 55m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    The travel and health documents you'll need for your trip to London Luton 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 Luton 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
Luton
Milton Keynes
Maidstone
Gatwick
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Worthing
Chelmsford
Dover
Hayes
Dartford
Winchester
Hounslow
Stansted

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 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?

Price alerts on flights to London from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your London Luton Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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