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Cheap flights from Washington, D.C. to London from £222

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 29/1. 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
20:40 - 12:55
IAD
-
LTN
12h 15m1 stop
Multiple Airlines Logo
08:00 - 19:30
LTN
-
IAD
15h 30m1 stop
£428Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Multiple Airlines Logo
09:45 - 20:10
IAD
-
LTN
29h 25m2 stops
Multiple Airlines Logo
20:50 - 15:50
LTN
-
IAD
24h 00m2 stops
£429Multiple Airlines
Mon, 12 Jan - Tue, 20 Jan
Multiple Airlines Logo
09:55 - 20:10
IAD
-
LTN
30h 15m2 stops
Multiple Airlines Logo
20:50 - 16:50
LTN
-
IAD
24h 00m2 stops
£429Multiple Airlines
Tue, 10 Mar - Thu, 19 Mar
Multiple Airlines Logo
20:40 - 14:00
IAD
-
LTN
13h 20m1 stop
Multiple Airlines Logo
06:15 - 19:20
LTN
-
IAD
18h 05m1 stop
£431Multiple Airlines
Mon, 16 Mar - Wed, 15 Apr
Multiple Airlines Logo
16:15 - 20:10
DCA
-
LTN
22h 55m2 stops
Multiple Airlines Logo
20:50 - 15:33
LTN
-
DCA
23h 43m3 stops
£432Multiple Airlines
Mon, 23 Feb - Mon, 2 Mar
Multiple Airlines Logo
19:40 - 12:55
IAD
-
LTN
12h 15m1 stop
Multiple Airlines Logo
08:00 - 18:30
LTN
-
IAD
15h 30m1 stop
£432Multiple Airlines
Wed, 21 Jan - Wed, 28 Jan
Multiple Airlines Logo
16:15 - 14:00
DCA
-
LTN
17h 45m2 stops
Multiple Airlines Logo
20:50 - 21:58
LTN
-
DCA
29h 08m3 stops
£433Multiple Airlines
Tue, 17 Mar - Wed, 25 Mar
Multiple Airlines Logo
20:40 - 12:55
BWI
-
LTN
12h 15m1 stop
Multiple Airlines Logo
06:00 - 19:40
LTN
-
BWI
17h 40m1 stop
£434Multiple Airlines
Wed, 11 Mar - Thu, 26 Mar
Multiple Airlines Logo
19:40 - 14:00
BWI
-
LTN
13h 20m1 stop
Multiple Airlines Logo
08:00 - 18:40
LTN
-
BWI
15h 40m1 stop
£435Multiple Airlines
Mon, 19 Jan - Wed, 4 Feb
Multiple Airlines Logo
20:30 - 18:15
IAD
-
LTN
16h 45m2 stops
Multiple Airlines Logo
08:30 - 15:20
LTN
-
IAD
35h 50m2 stops
£436Multiple Airlines
Mon, 12 Jan - Sun, 18 Jan

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 12 December 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 11/3

20:40-12:55

1 stop12h 15m

London Luton

Wed 18/3

08:00-19:30

1 stop15h 30m

£428

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 12/1

09:45-20:10

2 stops29h 25m

London Luton

Tue 20/1

20:50-15:50

2 stops24h 00m

£429

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Tue 10/3

09:55-20:10

2 stops30h 15m

London Luton

Thu 19/3

20:50-16:50

2 stops24h 00m

£429

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 16/3

20:40-14:00

1 stop13h 20m

London Luton

Wed 15/4

06:15-19:20

1 stop18h 05m

£431

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Mon 23/2

16:15-20:10

2 stops22h 55m

London Luton

Mon 2/3

20:50-15:33

3 stops23h 43m

£432

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Wed 21/1

19:40-12:55

1 stop12h 15m

London Luton

Wed 28/1

08:00-18:30

1 stop15h 30m

£432

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Tue 17/3

16:15-14:00

2 stops17h 45m

London Luton

Wed 25/3

20:50-21:58

3 stops29h 08m

£433

BaltimoreLondon

BWI - LTN

BWILTN

Baltimore/Washington

Wed 11/3

20:40-12:55

1 stop12h 15m

London Luton

Thu 26/3

06:00-19:40

1 stop17h 40m

£434

BaltimoreLondon

BWI - LTN

BWILTN

Baltimore/Washington

Mon 19/1

19:40-14:00

1 stop13h 20m

London Luton

Wed 4/2

08:00-18:40

1 stop15h 40m

£435

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Mon 12/1

20:30-18:15

2 stops16h 45m

London Luton

Sun 18/1

08:30-15:20

2 stops35h 50m

£436

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 25% 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 21 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 30m

Direct flights

None
The fastest flight from Washington, D.C. to London Luton Airport takes 9h 30m
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 30m, 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
Maidstone
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Hayes
Chelmsford
Dover
Worthing
Colchester
Bedford
Ramsgate
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

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