Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. to London from $254

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 12/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:55 pm - 8:10 pmDCA-LTN
26h 15m3 stops
Multiple Airlines Logo
8:50 pm - 3:31 pmLTN-DCA
23h 41m3 stops
$565Multiple Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 1
Multiple Airlines Logo
11:05 am - 7:25 pmDCA-LTN
27h 20m2 stops
Multiple Airlines Logo
8:50 pm - 9:56 pmLTN-DCA
30h 06m3 stops
$566Multiple Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 2
Multiple Airlines Logo
9:45 am - 7:25 pmIAD-LTN
28h 40m2 stops
Multiple Airlines Logo
8:50 pm - 8:59 pmLTN-IAD
29h 09m3 stops
$566Multiple Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 2
Multiple Airlines Logo
5:05 pm - 8:55 amIAD-LTN
10h 50m1 stop
Multiple Airlines Logo
9:00 am - 3:35 pmLTN-IAD
11h 35m1 stop
$567Multiple Airlines
Find Deal
Sun, Dec 7 - Tue, Dec 9
Multiple Airlines Logo
9:00 pm - 11:45 amIAD-LTN
9h 45m1 stop
Multiple Airlines Logo
9:00 am - 3:35 pmLTN-IAD
11h 35m1 stop
$572Multiple Airlines
Find Deal
Sun, Nov 9 - Tue, Nov 18
Multiple Airlines Logo
8:30 pm - 8:10 pmIAD-LTN
18h 40m2 stops
Multiple Airlines Logo
8:50 pm - 3:50 pmLTN-IAD
24h 00m2 stops
$573Multiple Airlines
Find Deal
Tue, Feb 3 - Mon, Feb 9
Multiple Airlines Logo
9:00 pm - 11:45 amIAD-LTN
9h 45m1 stop
Multiple Airlines Logo
6:50 am - 3:35 pmLTN-IAD
13h 45m1 stop
$574Multiple Airlines
Find Deal
Sun, Dec 7 - Wed, Dec 10
Multiple Airlines Logo
10:55 pm - 7:55 pmIAD-LTN
16h 00m2 stops
Multiple Airlines Logo
8:50 pm - 3:50 pmLTN-IAD
24h 00m2 stops
$576Multiple Airlines
Find Deal
Sun, Nov 23 - Tue, Dec 2
Multiple Airlines Logo
7:40 pm - 3:25 pmIAD-LTN
14h 45m2 stops
Multiple Airlines Logo
8:05 am - 6:30 pmLTN-IAD
15h 25m2 stops
$577Multiple Airlines
Find Deal
Fri, Dec 12 - Sun, Dec 14
Multiple Airlines Logo
12:23 pm - 10:20 pmIAD-LTN
28h 57m3 stops
Multiple Airlines Logo
8:50 pm - 5:15 pmLTN-IAD
25h 25m2 stops
$580Multiple Airlines
Find Deal
Wed, Feb 4 - Sun, Feb 8

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 November 6, 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

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Mon 11/24

12:55 pm-8:10 pm

3 stops26h 15m

London Luton

Mon 12/1

8:50 pm-3:31 pm

3 stops23h 41m

$565

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Wed 11/26

11:05 am-7:25 pm

2 stops27h 20m

London Luton

Tue 12/2

8:50 pm-9:56 pm

3 stops30h 06m

$566

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 11/26

9:45 am-7:25 pm

2 stops28h 40m

London Luton

Tue 12/2

8:50 pm-8:59 pm

3 stops29h 09m

$566

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 12/7

5:05 pm-8:55 am

1 stop10h 50m

London Luton

Tue 12/9

9:00 am-3:35 pm

1 stop11h 35m

$567

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 11/9

9:00 pm-11:45 am

1 stop9h 45m

London Luton

Tue 11/18

9:00 am-3:35 pm

1 stop11h 35m

$572

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 2/3

8:30 pm-8:10 pm

2 stops18h 40m

London Luton

Mon 2/9

8:50 pm-3:50 pm

2 stops24h 00m

$573

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 12/7

9:00 pm-11:45 am

1 stop9h 45m

London Luton

Wed 12/10

6:50 am-3:35 pm

1 stop13h 45m

$574

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 11/23

10:55 pm-7:55 pm

2 stops16h 00m

London Luton

Tue 12/2

8:50 pm-3:50 pm

2 stops24h 00m

$576

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Fri 12/12

7:40 pm-3:25 pm

2 stops14h 45m

London Luton

Sun 12/14

8:05 am-6:30 pm

2 stops15h 25m

$577

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 2/4

12:23 pm-10:20 pm

3 stops28h 57m

London Luton

Sun 2/8

8:50 pm-5:15 pm

2 stops25h 25m

$580

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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.
Search flight deals

  • 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 45m.

  • 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
Milton Keynes
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Chelmsford
Wembley
Folkestone
Romford
Ilford
Cobham
Stansted
Harrow
Watford

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 12/6
Sat 12/13
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Heathrow Airportfrom $343
Flights to London Gatwick Airportfrom $320
Flights to London City Airportfrom $470
Flights to London Stansted Airportfrom $382
Flights to Glasgow Intl Airportfrom $401
Flights to London Southend Airportfrom $403
Flights to Belfast Intl Airportfrom $509
Flights to Belfast City Airportfrom $509