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Cheap flights from Washington, D.C. to London Heathrow Airport from £140

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 Heathrow Airport departing on 22/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to London

Cheap return flights

These are some of the best return flight deals from Washington, D.C. to London that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Washington, D.C. to London.

Cheap last-minute flights

Planning a quick getaway from Washington, D.C. to London? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Washington, D.C. to London

Find recent round-trip train or bus tickets from Washington, D.C. to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
19:30 - 19:30BWI-LHR
19h 00m1 stop
12:15 - 18:30LHR-BWI
11h 15m1 stop
£372Icelandair
Find Deal
Tue, 3 Dec - Tue, 10 Dec
19:30 - 10:50BWI-LHR
10h 20m1 stop
12:15 - 18:30LHR-BWI
11h 15m1 stop
£373Icelandair
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Sat, 11 Jan - Sat, 1 Feb
18:45 - 07:15IAD-LHR
7h 30mdirect
08:40 - 15:45LHR-IAD
12h 05m1 stop
£463Virgin Atlantic
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Mon, 18 Nov - Tue, 26 Nov
18:45 - 07:15IAD-LHR
7h 30mdirect
09:00 - 16:15LHR-IAD
12h 15m1 stop
£467Virgin Atlantic
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Wed, 4 Dec - Wed, 11 Dec
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£472British Airways
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Tue, 10 Dec - Tue, 24 Dec
22:30 - 11:05IAD-LHR
7h 35mdirect
08:30 - 15:50LHR-IAD
12h 20m1 stop
£475Lufthansa
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Wed, 4 Dec - Wed, 11 Dec
20:30 - 08:40BWI-LHR
7h 10mdirect
15:25 - 18:45LHR-BWI
8h 20mdirect
£477Iberia
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Wed, 4 Dec - Wed, 11 Dec
18:00 - 06:15IAD-LHR
7h 15mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£477Iberia
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Tue, 3 Dec - Fri, 13 Dec
06:42 - 22:10DCA-LHR
10h 28m1 stop
19:25 - 19:59LHR-DCA
29h 34m2 stops
£488British Airways
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Sun, 24 Nov - Tue, 3 Dec
18:30 - 06:40IAD-LHR
7h 10mdirect
12:05 - 15:40LHR-IAD
8h 35mdirect
£500Lufthansa
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Sun, 17 Nov - Tue, 26 Nov
19:30 - 10:50BWI-LHR
10h 20m1 stop
£140Icelandair
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Wed, 22 Jan
19:30 - 19:30BWI-LHR
19h 00m1 stop
£140Icelandair
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Mon, 6 Jan
06:55 - 19:30BWI-LHR
31h 35m2 stops
Wed, 4 Dec
09:30 - 19:30BWI-LHR
29h 00m2 stops
Wed, 22 Jan
20:30 - 08:40BWI-LHR
7h 10mdirect
£287Iberia
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Wed, 22 Jan
20:30 - 08:40BWI-LHR
7h 10mdirect
£288Iberia
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Sun, 12 Jan
18:45 - 07:15IAD-LHR
7h 30mdirect
£288Virgin Atlantic
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Mon, 25 Nov
20:30 - 08:40BWI-LHR
7h 10mdirect
£295British Airways
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Wed, 8 Jan
18:00 - 06:15IAD-LHR
7h 15mdirect
£296British Airways
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Wed, 20 Nov
20:40 - 09:10IAD-LHR
7h 30mdirect
£332Virgin Atlantic
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Thu, 12 Dec
19:30 - 10:50BWI-LHR
10h 20m1 stop
20:40 - 18:30LHR-BWI
26h 50m1 stop
£513Icelandair
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Wed, 6 Nov - Wed, 13 Nov
19:30 - 19:30BWI-LHR
19h 00m1 stop
20:40 - 18:30LHR-BWI
26h 50m1 stop
£522Icelandair
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Tue, 5 Nov - Tue, 12 Nov
22:20 - 17:05IAD-LHR
13h 45m1 stop
19:15 - 20:05LHR-IAD
29h 50m1 stop
£592Lufthansa
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Wed, 6 Nov - Tue, 12 Nov
18:22 - 07:00IAD-LHR
31h 38m1 stop
16:30 - 19:45LHR-IAD
8h 15mdirect
£594British Airways
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Sat, 9 Nov - Tue, 19 Nov
22:20 - 16:45IAD-LHR
13h 25m2 stops
11:10 - 20:05LHR-IAD
13h 55m1 stop
£606Lufthansa
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Wed, 6 Nov - Wed, 13 Nov
17:26 - 12:00BWI-LHR
13h 34m1 stop
15:25 - 18:45LHR-BWI
8h 20mdirect
£607British Airways
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Wed, 6 Nov - Wed, 13 Nov
17:58 - 08:35DCA-LHR
9h 37m1 stop
11:25 - 22:37LHR-DCA
16h 12m2 stops
£618Iberia
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Fri, 8 Nov - Fri, 15 Nov
17:58 - 14:55DCA-LHR
15h 57m2 stops
15:35 - 22:33LHR-DCA
11h 58m1 stop
£642Iberia
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Tue, 5 Nov - Sun, 17 Nov
18:45 - 07:15IAD-LHR
7h 30mdirect
12:25 - 16:05LHR-IAD
8h 40mdirect
£663Virgin Atlantic
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Fri, 8 Nov - Tue, 24 Dec
18:45 - 07:15IAD-LHR
7h 30mdirect
06:20 - 16:15LHR-IAD
14h 55m1 stop
£700Virgin Atlantic
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Fri, 8 Nov - Sun, 10 Nov
18:00 - 06:15IAD-LHR
7h 15mdirect
12:10 - 16:35LHR-IAD
8h 25mdirect
£438British Airways
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Wed, 5 Mar - Wed, 12 Mar
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£450British Airways
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Sun, 1 Dec - Wed, 18 Dec
18:45 - 07:15IAD-LHR
7h 30mdirect
12:25 - 16:05LHR-IAD
8h 40mdirect
£466Virgin Atlantic
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Mon, 18 Nov - Tue, 26 Nov
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£467Iberia
Find Deal
Mon, 30 Dec - Thu, 30 Jan
18:45 - 07:15IAD-LHR
7h 30mdirect
13:05 - 16:45LHR-IAD
8h 40mdirect
£470Virgin Atlantic
Find Deal
Mon, 18 Nov - Wed, 27 Nov
20:30 - 08:40BWI-LHR
7h 10mdirect
15:25 - 18:45LHR-BWI
8h 20mdirect
£474Iberia
Find Deal
Sun, 12 Jan - Wed, 22 Jan
20:30 - 08:40BWI-LHR
7h 10mdirect
15:25 - 19:45LHR-BWI
8h 20mdirect
£485Finnair
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Wed, 5 Mar - Wed, 12 Mar
20:30 - 08:40BWI-LHR
7h 10mdirect
15:25 - 18:45LHR-BWI
8h 20mdirect
£487Finnair
Find Deal
Mon, 2 Dec - Fri, 13 Dec
18:30 - 06:40IAD-LHR
7h 10mdirect
12:05 - 15:40LHR-IAD
8h 35mdirect
£500Lufthansa
Find Deal
Sun, 17 Nov - Tue, 26 Nov
22:30 - 11:05IAD-LHR
7h 35mdirect
16:20 - 20:15LHR-IAD
8h 55mdirect
£633Lufthansa
Find Deal
Sun, 1 Dec - Wed, 4 Dec

JetBlue flights from Washington, D.C. to London Heathrow Airport

Our best JetBlue deals on Washington, D.C. to London Heathrow Airport flight tickets
JetBlue
29 Apr
DCA14:45Washington, D.C. Reagan-National
10h 10m
1 stop
LHR05:55London Heathrow
7 May
LHR07:25London Heathrow
11h 20m
1 stop
DCA13:45Washington, D.C. Reagan-National
JetBlue
17 Jan
DCA15:00Washington, D.C. Reagan-National
9h 55m
1 stop
LHR05:55London Heathrow
25 Jan
LHR08:25London Heathrow
12h 35m
1 stop
DCA16:00Washington, D.C. Reagan-National
JetBlue
30 Dec
DCA07:45Washington, D.C. Reagan-National
17h 10m
1 stop
LHR05:55London Heathrow
24 Apr
LHR08:25London Heathrow
13h 18m
1 stop
DCA16:43Washington, D.C. Reagan-National

Scandinavian Airlines flights from Washington, D.C. to London Heathrow Airport

Our best Scandinavian Airlines deals on Washington, D.C. to London Heathrow Airport flight tickets
Scandinavian Airlines
17 Nov
IAD17:10Washington, D.C. Dulles Intl
19h 30m
1 stop
LHR17:40London Heathrow
26 Nov
LHR19:30London Heathrow
25h 10m
1 stop
IAD15:40Washington, D.C. Dulles Intl
Scandinavian Airlines
17 Nov
IAD17:10Washington, D.C. Dulles Intl
18h 15m
2 stops
LHR16:25London Heathrow
26 Nov
LHR18:40London Heathrow
26h 00m
1 stop
IAD15:40Washington, D.C. Dulles Intl
Scandinavian Airlines
8 Jan
IAD17:10Washington, D.C. Dulles Intl
14h 45m
2 stops
LHR12:55London Heathrow
12 Jan
LHR17:00London Heathrow
27h 40m
1 stop
IAD15:40Washington, D.C. Dulles Intl

How to get the cheapest flight ticket from Washington, D.C. to London Heathrow 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 month to fly from Washington, D.C. to London Heathrow Airport?

April. The cheapest time of year to fly to London Heathrow Airport from Washington, D.C. is April. The most expensive is June.

What is the cheapest day to depart Washington, D.C. for London Heathrow Airport?

Saturday. The cheapest day of the week is usually Saturday. The most expensive is usually Sunday.

When is the cheapest time to fly from Washington, D.C. to London Heathrow Airport?

In the morning. Washington, D.C. to London Heathrow Airport flights are approximately 8% more expensive in the evening than in the morning

What is the cheapest airline that flies to London Heathrow Airport from Washington, D.C.?

Aer Lingus. Aer Lingus, Lufthansa, and Virgin Atlantic are the most popular carriers operating from Washington, D.C. to London Heathrow Airport

How far in advance should you book Washington, D.C. to London Heathrow Airport flights?

29 days before. The cheapest time to buy a flight from Washington, D.C. to London Heathrow Airport is approximately 29 days to departure

How many flights depart from Washington, D.C. to London Heathrow Airport on average per day?

21 flights are operational weekly from Washington, D.C. to London Heathrow Airport as of November 2024. The most popular departure time for this route is 19:00, with 95% of flights per day taking off in the evening.

How many flights depart from Washington, D.C. to London Heathrow Airport on average per week?

147 flights are operational weekly from Washington, D.C. to London Heathrow Airport as of November 2024. The most popular departure day for this route is Monday, with 18% of flights per week taking off on this day.

What cabin class options are available on Washington, D.C. to London Heathrow Airport flights?

There are 2 cabin classes available to choose from on Washington, D.C. to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to London Heathrow Airport flights?

You could potentially save up to 51% on your flight if you consider stops on a Washington, D.C. to London Heathrow Airport flight.

How have Washington, D.C. to London Heathrow Airport flight prices changed over time?

As of November 2024, prices for Washington, D.C. to London Heathrow Airport flights are approximately 19% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to London Heathrow 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 Heathrow Airport (WAS to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to London Heathrow Airport

Best price found

£140

Fastest flight time

7h 10m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Washington, D.C. in the past 72 hours is £140. The best return flight deal from Washington, D.C. to London Heathrow Airport found on momondo in the last 72 hours is £372.
The fastest flight from Washington, D.C. to London Heathrow Airport takes 7h 10m
Direct flights go from Washington, D.C. to London Heathrow Airport every day.

  • How far is Washington, D.C. to London Heathrow by plane?

    There are 3649.4 mi between Washington, D.C. and London Heathrow. By plane, this route typically takes 7h 10m.

  • When did momondo last update prices for flights from Washington, D.C. to London Heathrow Airport?

    Prices for flights from Washington, D.C. to London Heathrow Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. to London Heathrow Airport?

  • How old do you have to be to fly from Washington, D.C. to London Heathrow 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 Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents you'll need for your trip to London Heathrow 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 Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Washington, D.C. to London Heathrow Airport?

  • What is the most popular airline from Washington, D.C. to London Heathrow Airport?


Best airlines flying from Washington, D.C. to London Heathrow Airport

Compare and see reviews for airlines that fly from Washington, D.C. to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom £320Free CancellationRating
7.1
1,087 reviews
Search Aer Lingus flights
IcelandairPriceFrom £372Free CancellationRating
7.2
573 reviews
Search Icelandair flights
LufthansaPriceFrom £428Free CancellationRating
6.8
7,165 reviews
Search Lufthansa flights
IberiaPriceFrom £429Free CancellationRating
7.0
2,668 reviews
Search Iberia flights
Virgin AtlanticPriceFrom £440Free CancellationRating
7.6
666 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £440Free CancellationRating
6.7
6,842 reviews
Search British Airways flights
United AirlinesPriceFrom £441Free CancellationRating
7.4
9,226 reviews
Search United Airlines flights
Air FrancePriceFrom £454Free CancellationRating
7.4
1,530 reviews
Search Air France flights
KLMPriceFrom £479Free CancellationRating
7.8
1,350 reviews
Search KLM flights
American AirlinesPriceFrom £480Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • KLM Flights From Washington, D.C. to London Heathrow Airport

    The lowest priced KLM flight from Washington, D.C. to London Heathrow Airport from the last 72 hours was £621. Generally, KLM has 4 flights on this route every week with an average price of £812. KLM is rated 7.8/10 by our users.

  • Virgin Atlantic Flights From Washington, D.C. to London Heathrow Airport

    Across 666 Virgin Atlantic reviews on momondo, the average score is 7.6/10. Virgin Atlantic flies from Washington, D.C. to London Heathrow Airport about 4 times each week, with ticket deals ranging from £570 to £728. Price data is based on momondo searches in the last 72 hours.


Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to London for you.

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

momondo does allow users to show only those flights to London from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Washington, D.C. to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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