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Cheap flights from Washington, D.C. to London from £205

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 15/4. 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
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Find the cheapest flights from Washington, D.C. to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:20 - 19:55
IAD
-
LTN
18h 35m
2 stops
Multiple Airlines Logo
20:35 - 16:50
LTN
-
IAD
25h 15m
2 stops
£399Multiple Airlines
Thu, 16 Apr - Sat, 25 Apr
Multiple Airlines Logo
22:20 - 20:40
IAD
-
LTN
17h 20m
2 stops
Multiple Airlines Logo
20:25 - 16:05
LTN
-
IAD
24h 40m
2 stops
£400Multiple Airlines
Wed, 22 Apr - Mon, 27 Apr
Multiple Airlines Logo
18:00 - 21:05
IAD
-
LTN
22h 05m
2 stops
Multiple Airlines Logo
20:20 - 15:50
LTN
-
IAD
24h 30m
2 stops
£402Multiple Airlines
Mon, 2 Mar - Thu, 5 Mar
Multiple Airlines Logo
20:20 - 22:40
IAD
-
LTN
21h 20m
2 stops
Multiple Airlines Logo
15:15 - 16:50
LTN
-
IAD
30h 35m
3 stops
£405Multiple Airlines
Fri, 17 Apr - Fri, 24 Apr
Multiple Airlines Logo
20:20 - 23:05
IAD
-
LTN
21h 45m
2 stops
Multiple Airlines Logo
06:45 - 16:50
LTN
-
IAD
15h 05m
2 stops
£410Multiple Airlines
Thu, 16 Apr - Thu, 23 Apr
Multiple Airlines Logo
19:00 - 17:20
IAD
-
LTN
18h 20m
2 stops
Multiple Airlines Logo
08:25 - 15:40
LTN
-
IAD
35h 15m
2 stops
£413Multiple Airlines
Tue, 17 Mar - Tue, 24 Mar
Multiple Airlines Logo
18:30 - 20:10
IAD
-
LTN
21h 40m
2 stops
Multiple Airlines Logo
07:50 - 15:35
LTN
-
IAD
35h 45m
2 stops
£415Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
18:00 - 21:05
IAD
-
LTN
22h 05m
2 stops
Multiple Airlines Logo
20:20 - 15:50
LTN
-
IAD
24h 30m
3 stops
£419Multiple Airlines
Mon, 2 Mar - Thu, 5 Mar
Multiple Airlines Logo
09:00 - 21:30
IAD
-
LTN
31h 30m
3 stops
Multiple Airlines Logo
05:00 - 19:25
LTN
-
IAD
19h 25m
2 stops
£421Multiple Airlines
Tue, 31 Mar - Wed, 8 Apr
Multiple Airlines Logo
09:00 - 19:55
IAD
-
LTN
29h 55m
3 stops
Multiple Airlines Logo
20:50 - 15:50
LTN
-
IAD
24h 00m
2 stops
£422Multiple Airlines
Sun, 1 Mar - Sat, 7 Mar

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 9 February 2026.
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

Thu 16/4

20:20-19:55

2 stops18h 35m

London Luton

Sat 25/4

20:35-16:50

2 stops25h 15m

£399

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 22/4

22:20-20:40

2 stops17h 20m

London Luton

Mon 27/4

20:25-16:05

2 stops24h 40m

£400

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 2/3

18:00-21:05

2 stops22h 05m

London Luton

Thu 5/3

20:20-15:50

2 stops24h 30m

£402

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Fri 17/4

20:20-22:40

2 stops21h 20m

London Luton

Fri 24/4

15:15-16:50

3 stops30h 35m

£405

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Thu 16/4

20:20-23:05

2 stops21h 45m

London Luton

Thu 23/4

06:45-16:50

2 stops15h 05m

£410

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 17/3

19:00-17:20

2 stops18h 20m

London Luton

Tue 24/3

08:25-15:40

2 stops35h 15m

£413

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 9/3

18:30-20:10

2 stops21h 40m

London Luton

Mon 16/3

07:50-15:35

2 stops35h 45m

£415

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 2/3

18:00-21:05

2 stops22h 05m

London Luton

Thu 5/3

20:20-15:50

3 stops24h 30m

£419

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 31/3

09:00-21:30

3 stops31h 30m

London Luton

Wed 8/4

05:00-19:25

2 stops19h 25m

£421

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Sun 1/3

09:00-19:55

3 stops29h 55m

London Luton

Sat 7/3

20:50-15:50

2 stops24h 00m

£422

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 often are flights from Washington, D.C. to London delayed?

Historically, on average around 33% of flights between Washington, D.C. and London have experienced a delay on any given week. The average delay length over the past 12 months has been 28 minutes.

What is the most punctual flight time for Washington, D.C. to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Washington, D.C. to London flights?

According to our data, Air Seoul have had the fewest delays on this route over the last 12 months, with about 100% of their flights experiencing any sort of delay.

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

Fastest flight time

9h 45m

Direct flights

None
The fastest flight from Washington, D.C. to London Luton Airport takes 9h 45m
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?

    A flight from Washington, D.C. to London Luton will travel around 3644.3 mi. Flights usually cover this in 9h 45m, 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
Milton Keynes
Luton
Gatwick
Slough
Maidstone
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Wembley
Dover
Folkestone
Colchester
Bedford
Worthing
Ramsgate

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

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