Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. to London from $248

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 11/16. 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
9:45 am - 7:25 pmIAD-LTN
28h 40m2 stops
Multiple Airlines Logo
8:50 pm - 3:50 pmLTN-IAD
24h 00m2 stops
$559Multiple Airlines
Find Deal
Wed, Jan 14 - Tue, Jan 20
Multiple Airlines Logo
7:40 pm - 12:55 pmIAD-LTN
12h 15m1 stop
Multiple Airlines Logo
8:00 am - 6:30 pmLTN-IAD
15h 30m1 stop
$560Multiple Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Multiple Airlines Logo
4:10 pm - 7:25 pmDCA-LTN
22h 15m2 stops
Multiple Airlines Logo
8:50 pm - 9:56 pmLTN-DCA
30h 06m3 stops
$562Multiple Airlines
Find Deal
Wed, Nov 19 - Tue, Nov 25
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
$563Multiple Airlines
Find Deal
Tue, Dec 2 - Thu, Dec 11
Multiple Airlines Logo
9:40 am - 2:15 pmDCA-LTN
23h 35m3 stops
Multiple Airlines Logo
8:25 am - 9:56 pmLTN-DCA
18h 31m3 stops
$565Multiple Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 23
Multiple Airlines Logo
7:40 pm - 2:50 pmIAD-LTN
14h 10m1 stop
Multiple Airlines Logo
8:00 am - 6:30 pmLTN-IAD
15h 30m1 stop
$567Multiple Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 10
Multiple Airlines Logo
12:55 pm - 7:25 pmDCA-LTN
25h 30m3 stops
Multiple Airlines Logo
8:50 pm - 7:45 pmLTN-DCA
27h 55m3 stops
$569Multiple Airlines
Find Deal
Wed, Nov 19 - Tue, Nov 25
Multiple Airlines Logo
7:40 pm - 2:50 pmIAD-LTN
14h 10m1 stop
Multiple Airlines Logo
7:00 am - 6:30 pmLTN-IAD
16h 30m1 stop
$570Multiple Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Multiple Airlines Logo
7:40 pm - 10:30 pmIAD-LTN
21h 50m2 stops
Multiple Airlines Logo
6:20 am - 6:30 pmLTN-IAD
17h 10m2 stops
$571Multiple Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
Multiple Airlines Logo
4:10 pm - 8:10 pmDCA-LTN
23h 00m2 stops
Multiple Airlines Logo
8:50 pm - 9:56 pmLTN-DCA
30h 06m3 stops
$572Multiple Airlines
Find Deal
Mon, Dec 1 - Wed, Dec 10

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 October 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

Wed 1/14

9:45 am-7:25 pm

2 stops28h 40m

London Luton

Tue 1/20

8:50 pm-3:50 pm

2 stops24h 00m

$559

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

Wed 12/10

8:00 am-6:30 pm

1 stop15h 30m

$560

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Wed 11/19

4:10 pm-7:25 pm

2 stops22h 15m

London Luton

Tue 11/25

8:50 pm-9:56 pm

3 stops30h 06m

$562

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 12/2

7:40 pm-2:50 pm

1 stop14h 10m

London Luton

Thu 12/11

6:00 am-6:30 pm

1 stop17h 30m

$563

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Thu 11/13

9:40 am-2:15 pm

3 stops23h 35m

London Luton

Sun 11/23

8:25 am-9:56 pm

3 stops18h 31m

$565

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 12/2

7:40 pm-2:50 pm

1 stop14h 10m

London Luton

Wed 12/10

8:00 am-6:30 pm

1 stop15h 30m

$567

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Wed 11/19

12:55 pm-7:25 pm

3 stops25h 30m

London Luton

Tue 11/25

8:50 pm-7:45 pm

3 stops27h 55m

$569

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 12/2

7:40 pm-2:50 pm

1 stop14h 10m

London Luton

Tue 12/9

7:00 am-6:30 pm

1 stop16h 30m

$570

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 12/3

7:40 pm-10:30 pm

2 stops21h 50m

London Luton

Sun 12/7

6:20 am-6:30 pm

2 stops17h 10m

$571

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Mon 12/1

4:10 pm-8:10 pm

2 stops23h 00m

London Luton

Wed 12/10

8:50 pm-9:56 pm

3 stops30h 06m

$572

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 10h 30m.

  • 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
Luton
Dover
Slough
Guildford
Dartford
Crawley
Hayes
Brentwood
Chelmsford
Colchester
Folkestone
Romford
Ilford
Cobham
Wembley
Stansted
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 11/15
Sat 11/22
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 $344
Flights to London Gatwick Airportfrom $334
Flights to London City Airportfrom $451
Flights to London Stansted Airportfrom $391
Flights to Glasgow Intl Airportfrom $400
Flights to Belfast Intl Airportfrom $523
Flights to London Southend Airportfrom $551
Flights to Belfast City Airportfrom $536