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Cheap flights from Washington, D.C. to London from $230

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 10/20. 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 round-trip flights

Multiple Airlines Logo
7:40 pm - 4:05 pmIAD-LTN
15h 25m2 stops
Multiple Airlines Logo
6:00 am - 6:30 pmLTN-IAD
17h 30m2 stops
$519Multiple Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Multiple Airlines Logo
6:50 pm - 6:30 pmBWI-LTN
18h 40m2 stops
Multiple Airlines Logo
6:05 am - 5:40 pmLTN-BWI
16h 35m2 stops
$527Multiple Airlines
Find Deal
Mon, Oct 13 - Wed, Oct 22
Multiple Airlines Logo
7:40 pm - 4:05 pmIAD-LTN
15h 25m2 stops
Multiple Airlines Logo
6:00 am - 6:30 pmLTN-IAD
17h 30m2 stops
$535Multiple Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Multiple Airlines Logo
7:40 pm - 4:15 pmBWI-LTN
15h 35m2 stops
Multiple Airlines Logo
6:00 am - 6:40 pmLTN-BWI
17h 40m2 stops
$540Multiple Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Multiple Airlines Logo
7:40 pm - 12:55 pmIAD-LTN
12h 15m1 stop
Multiple Airlines Logo
7:00 am - 6:30 pmLTN-IAD
16h 30m1 stop
$540Multiple Airlines
Find Deal
Wed, Dec 3 - Tue, Dec 9
Multiple Airlines Logo
7:40 pm - 12:55 pmIAD-LTN
12h 15m1 stop
Multiple Airlines Logo
7:00 am - 6:30 pmLTN-IAD
16h 30m1 stop
$544Multiple Airlines
Find Deal
Wed, Dec 3 - Tue, Dec 9
Multiple Airlines Logo
7:40 pm - 2:50 pmIAD-LTN
14h 10m1 stop
Multiple Airlines Logo
6:00 am - 6:30 pmLTN-IAD
17h 30m1 stop
$547Multiple Airlines
Find Deal
Sun, Dec 7 - Thu, Dec 11
Multiple Airlines Logo
9:45 am - 11:05 pmIAD-LTN
32h 20m3 stops
Multiple Airlines Logo
2:10 pm - 4:40 pmLTN-IAD
31h 30m2 stops
$549Multiple Airlines
Find Deal
Wed, Nov 5 - Thu, Nov 13
Multiple Airlines Logo
6:50 pm - 10:35 pmBWI-LTN
22h 45m2 stops
Multiple Airlines Logo
6:05 am - 5:40 pmLTN-BWI
16h 35m2 stops
$555Multiple Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
6:50 pm - 10:35 pmBWI-LTN
22h 45m2 stops
Multiple Airlines Logo
6:05 am - 5:40 pmLTN-BWI
16h 35m2 stops
$560Multiple Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated September 16, 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

Sat 12/6

7:40 pm-4:05 pm

2 stops15h 25m

London Luton

Sat 12/13

6:00 am-6:30 pm

2 stops17h 30m

$519

BaltimoreLondon

BWI - LTN

BWILTN

Baltimore/Washington

Mon 10/13

6:50 pm-6:30 pm

2 stops18h 40m

London Luton

Wed 10/22

6:05 am-5:40 pm

2 stops16h 35m

$527

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sat 12/6

7:40 pm-4:05 pm

2 stops15h 25m

London Luton

Sat 12/13

6:00 am-6:30 pm

2 stops17h 30m

$535

BaltimoreLondon

BWI - LTN

BWILTN

Baltimore/Washington

Fri 12/5

7:40 pm-4:15 pm

2 stops15h 35m

London Luton

Mon 12/8

6:00 am-6:40 pm

2 stops17h 40m

$540

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 12/3

7:40 pm-12:55 pm

1 stop12h 15m

London Luton

Tue 12/9

7:00 am-6:30 pm

1 stop16h 30m

$540

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 12/3

7:40 pm-12:55 pm

1 stop12h 15m

London Luton

Tue 12/9

7:00 am-6:30 pm

1 stop16h 30m

$544

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 12/7

7:40 pm-2:50 pm

1 stop14h 10m

London Luton

Thu 12/11

6:00 am-6:30 pm

1 stop17h 30m

$547

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 11/5

9:45 am-11:05 pm

3 stops32h 20m

London Luton

Thu 11/13

2:10 pm-4:40 pm

2 stops31h 30m

$549

BaltimoreLondon

BWI - LTN

BWILTN

Baltimore/Washington

Wed 10/15

6:50 pm-10:35 pm

2 stops22h 45m

London Luton

Wed 10/22

6:05 am-5:40 pm

2 stops16h 35m

$555

BaltimoreLondon

BWI - LTN

BWILTN

Baltimore/Washington

Wed 10/15

6:50 pm-10:35 pm

2 stops22h 45m

London Luton

Wed 10/22

6:05 am-5:40 pm

2 stops16h 35m

$560

Flights are sorted by cheapest round-trip 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

What is the cheapest day to depart on your flight to London Luton Airport?

According to our data, Tuesday is the cheapest day to fly to London Luton Airport from Washington, D.C.. The lowest ticket price found for a Tuesday departure recently was $743. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Washington, D.C. to London Luton Airport on a Friday will generally be more expensive and average around $1,027. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to London Luton Airport?

According to our data, the cheapest time of day to fly to London Luton Airport is in the evening. momondo users have found flights departing from Washington, D.C. to London Luton Airport in the evening for as low as $540. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to London Luton Airport are more costly in the afternoon, with an average ticket price of $810. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 round-trip 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?

    London Luton is 3644.3 mi away from Washington, D.C.. A reasonable flight in good conditions will take 9h 55m.

  • 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?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Dover
Luton
Slough
Milton Keynes
Hayes
Guildford
Dartford
Crawley
Stansted
Chelmsford
Brentwood
Ilford
Folkestone
Colchester
Watford
Wembley
Richmond
Croydon

Why use momondo?

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

It is quick and easy to find Washington, D.C. to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Flights from Washington, D.C. to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to London from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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 simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Washington, D.C. and alert you when they change.

An easier way to manage your London Luton Airport trip

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