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Cheap flights from London Heathrow Airport to Washington, D.C. from £225

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Washington, D.C. departing on 17/3. 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 London Heathrow Airport to Washington, D.C.

Cheap return flights

These are some of the best return flight deals from London Heathrow Airport to Washington, D.C. 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 London Heathrow Airport to Washington, D.C..

Cheap last-minute flights

Planning a quick getaway from London Heathrow Airport to Washington, D.C.? 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 Washington, D.C., so you can enjoy a seamless trip without stopovers.

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

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

All round-trip flight deals to Washington, D.C.

The cheapest plane tickets to Washington, D.C. found on KAYAK recently.
08:25 - 11:35LHR-DCA
32h 10m1 stop
15:35 - 05:55DCA-LHR
9h 20m1 stop
£364Icelandair
Find Deal
Mon, 17 Feb - Mon, 24 Feb
07:30 - 18:00LHR-IAD
14h 30m1 stop
19:10 - 14:55IAD-LHR
15h 45m1 stop
Wed, 12 Mar - Wed, 19 Mar
08:25 - 20:56LHR-DCA
17h 31m1 stop
08:00 - 05:55DCA-LHR
16h 55m1 stop
£368JetBlue
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Wed, 12 Feb - Tue, 18 Feb
15:25 - 18:45LHR-BWI
8h 20mdirect
08:01 - 09:40BWI-LHR
20h 39m1 stop
£516Finnair
Find Deal
Wed, 27 Nov - Tue, 10 Dec
15:25 - 18:45LHR-BWI
8h 20mdirect
08:10 - 12:20BWI-LHR
23h 10m1 stop
£517Finnair
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Wed, 27 Nov - Tue, 14 Jan
16:20 - 20:40LHR-IAD
8h 20mdirect
22:05 - 20:40IAD-LHR
17h 35m1 stop
£525Lufthansa
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Tue, 25 Mar - Sat, 29 Mar
14:30 - 15:13LHR-IAD
29h 43m1 stop
18:30 - 06:40IAD-LHR
7h 10mdirect
£542Lufthansa
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Sat, 23 Nov - Sun, 1 Dec
12:25 - 16:05LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
£576Virgin Atlantic
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Wed, 8 Jan - Wed, 22 Jan
12:25 - 16:05LHR-IAD
8h 40mdirect
21:50 - 10:05IAD-LHR
7h 15mdirect
£579Virgin Atlantic
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Tue, 7 Jan - Wed, 30 Apr
14:05 - 19:59LHR-DCA
34h 54m2 stops
22:30 - 14:35DCA-LHR
35h 05m2 stops
£661British Airways
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Mon, 2 Dec - Sun, 15 Dec
07:35 - 18:00LHR-IAD
14h 25m1 stop
Mon, 17 Mar
20:40 - 18:00LHR-IAD
25h 20m1 stop
Tue, 11 Mar
12:20 - 19:25LHR-DCA
12h 05m1 stop
£464Virgin Atlantic
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Fri, 22 Nov
09:10 - 22:03LHR-DCA
17h 53m1 stop
£475Virgin Atlantic
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Tue, 12 Nov
08:20 - 22:41LHR-DCA
19h 21m1 stop
£595Finnair
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Wed, 8 Jan
10:35 - 17:31LHR-DCA
11h 56m1 stop
£623Finnair
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Thu, 14 Nov
08:00 - 19:32LHR-DCA
16h 32m1 stop
£626Lufthansa
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Mon, 11 Nov
14:10 - 23:20LHR-DCA
14h 10m1 stop
£633British Airways
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Fri, 17 Jan
09:10 - 17:25LHR-DCA
13h 15m1 stop
£638Lufthansa
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Mon, 20 Jan
15:35 - 22:40LHR-DCA
12h 05m1 stop
£661British Airways
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Wed, 1 Jan
06:40 - 15:40LHR-IAD
14h 00m1 stop
17:10 - 21:40IAD-LHR
23h 30m1 stop
£489Scandinavian Airlines
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Fri, 8 Nov - Mon, 18 Nov
16:00 - 22:48LHR-IAD
11h 48m1 stop
22:09 - 08:30IAD-LHR
29h 21m1 stop
£507United Airlines
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Fri, 8 Nov - Sat, 9 Nov
17:05 - 18:59LHR-DCA
30h 54m1 stop
22:10 - 22:10DCA-LHR
19h 00m1 stop
£644Finnair
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Tue, 5 Nov - Thu, 7 Nov
17:05 - 18:59LHR-DCA
30h 54m1 stop
06:42 - 22:10DCA-LHR
10h 28m1 stop
£647Finnair
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Tue, 5 Nov - Sun, 10 Nov
13:05 - 16:45LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
£834Virgin Atlantic
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Wed, 6 Nov - Wed, 20 Nov
13:05 - 16:45LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
£863Virgin Atlantic
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Fri, 8 Nov - Mon, 18 Nov
12:05 - 15:40LHR-IAD
8h 35mdirect
22:15 - 10:50IAD-LHR
7h 35mdirect
£884Lufthansa
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Sat, 9 Nov - Sat, 16 Nov
16:20 - 20:15LHR-IAD
8h 55mdirect
22:30 - 11:05IAD-LHR
7h 35mdirect
£887Lufthansa
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Sat, 9 Nov - Sun, 17 Nov
12:10 - 15:35LHR-IAD
8h 25mdirect
18:00 - 06:15IAD-LHR
7h 15mdirect
£929British Airways
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Wed, 6 Nov - Wed, 13 Nov
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
£929British Airways
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Wed, 6 Nov - Mon, 11 Nov
12:25 - 17:05LHR-IAD
8h 40mdirect
22:20 - 09:30IAD-LHR
7h 10mdirect
£572Air France
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Tue, 18 Mar - Tue, 25 Mar
16:20 - 20:15LHR-IAD
8h 55mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
£573Lufthansa
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Tue, 3 Dec - Tue, 10 Dec
12:25 - 16:05LHR-IAD
8h 40mdirect
18:25 - 06:55IAD-LHR
7h 30mdirect
£574Virgin Atlantic
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Wed, 12 Feb - Tue, 18 Feb
12:25 - 16:05LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
£576Virgin Atlantic
Find Deal
Wed, 8 Jan - Wed, 22 Jan
16:30 - 19:45LHR-IAD
8h 15mdirect
21:55 - 10:05IAD-LHR
7h 10mdirect
£583Aer Lingus
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Wed, 27 Nov - Tue, 10 Dec
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
£598British Airways
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Mon, 17 Feb - Mon, 24 Feb
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
£599British Airways
Find Deal
Mon, 17 Feb - Mon, 24 Feb
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
£608Finnair
Find Deal
Mon, 17 Feb - Thu, 20 Feb
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
£614Aer Lingus
Find Deal
Wed, 4 Dec - Wed, 11 Dec
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
£617Finnair
Find Deal
Wed, 4 Dec - Wed, 11 Dec

TAP AIR PORTUGAL flights from London Heathrow Airport to Washington, D.C.

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to Washington, D.C. flight tickets
TAP AIR PORTUGAL
8 Mar
LHR06:00London Heathrow
14h 00m
1 stop
IAD15:00Washington, D.C. Dulles Intl
17 Mar
IAD20:15Washington, D.C. Dulles Intl
12h 25m
1 stop
LHR12:40London Heathrow
TAP AIR PORTUGAL
8 Dec
LHR18:30London Heathrow
23h 30m
1 stop
IAD13:00Washington, D.C. Dulles Intl
9 Feb
IAD22:30Washington, D.C. Dulles Intl
18h 05m
1 stop
LHR21:35London Heathrow
TAP AIR PORTUGAL
17 Jan
LHR06:00London Heathrow
20h 00m
1 stop
IAD21:00Washington, D.C. Dulles Intl
31 Jan
IAD22:30Washington, D.C. Dulles Intl
15h 25m
1 stop
LHR18:55London Heathrow

Aer Lingus flights from London Heathrow Airport to Washington, D.C.

Our best Aer Lingus deals on London Heathrow Airport to Washington, D.C. flight tickets
Aer Lingus
27 Nov
LHR09:50London Heathrow
10h 50m
1 stop
IAD15:40Washington, D.C. Dulles Intl
12 Dec
IAD17:10Washington, D.C. Dulles Intl
10h 55m
1 stop
LHR09:05London Heathrow
Aer Lingus
6 Dec
LHR07:50London Heathrow
12h 50m
1 stop
IAD15:40Washington, D.C. Dulles Intl
14 Dec
IAD17:10Washington, D.C. Dulles Intl
12h 10m
1 stop
LHR10:20London Heathrow
Aer Lingus
20 Nov
LHR08:50London Heathrow
11h 50m
1 stop
IAD15:40Washington, D.C. Dulles Intl
27 Nov
IAD17:10Washington, D.C. Dulles Intl
9h 55m
1 stop
LHR08:05London Heathrow

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

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 London Heathrow Airport to Washington, D.C.?

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

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

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

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

In the evening. London Heathrow Airport to Washington, D.C. flights are approximately 19% more expensive in the afternoon than in the evening

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

PLAY. PLAY, JetBlue, and Scandinavian Airlines are the most popular carriers operating from London Heathrow Airport to Washington, D.C.

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

37 days before. The cheapest time to buy a flight from London Heathrow Airport to Washington, D.C. is approximately 37 days to departure

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

As of November 2024, there are 19 flights per week flying from London Heathrow Airport to Washington, D.C.. The most common time of day flights depart is 16:00, with 100% of flights taking off in the afternoon.

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

138 flights are operational weekly from London Heathrow Airport to Washington, D.C. as of November 2024. The most popular departure day for this route is Monday, with 19% of flights per week taking off on this day.

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

There are 3 cabin classes available to choose from on London Heathrow Airport to Washington, D.C. 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 London Heathrow Airport to Washington, D.C. flights?

You could potentially save up to 66% on your flight if you consider stops on a London Heathrow Airport to Washington, D.C. flight.

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

As of November 2024, prices for London Heathrow Airport to Washington, D.C. flights are approximately 24% more expensive when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Washington, D.C. (LHR to WAS) flight deals and tips

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

Best price found

£225

Fastest flight time

8h 20m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from London Heathrow Airport in the past 72 hours is £225. The best return flight deal from London Heathrow Airport to Washington, D.C. found on momondo in the last 72 hours is £364.
The fastest flight from London Heathrow Airport to Washington, D.C. takes 8h 20m
Direct flights go from London Heathrow Airport to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

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

    The straight-line distance from London Heathrow to Washington, D.C. is 3649.4 mi. Flights usually cover this in 8h 20m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London Heathrow Airport to Washington, D.C. are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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


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

Compare and see reviews for airlines that fly from London Heathrow Airport to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom £243Free CancellationRating
7.1
87 reviews
Search PLAY flights
DeltaPriceFrom £331Free CancellationRating
8.0
8,829 reviews
Search Delta flights
JetBluePriceFrom £349Free CancellationRating
7.5
3,493 reviews
Search JetBlue flights
Virgin AtlanticPriceFrom £374Free CancellationRating
7.6
666 reviews
Search Virgin Atlantic flights
IcelandairPriceFrom £377Free CancellationRating
7.2
578 reviews
Search Icelandair flights
Air FrancePriceFrom £378Free CancellationRating
7.4
1,532 reviews
Search Air France flights
American AirlinesPriceFrom £379Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Brussels AirlinesPriceFrom £396Free CancellationRating
7.4
379 reviews
Search Brussels Airlines flights
Scandinavian AirlinesPriceFrom £408Free CancellationRating
7.3
1,303 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom £409Free CancellationRating
7.1
1,896 reviews
Search TAP AIR PORTUGAL flights
  • Delta Flights From London Heathrow Airport to Washington, D.C.

    Delta flies from London Heathrow Airport to Washington, D.C. around 2 times per week, with 8,829 momondo users rating the airline 8.0/10. The cheapest Delta deal from London Heathrow Airport to Washington, D.C. in the last 72 hours was £428 (round-trip), much lower than the average airfare cost of £840 for Delta flights on this route.

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

    The best KLM deal for London Heathrow Airport to Washington, D.C. flight tickets found on momondo in the last 72 hours was £621, round-trip. It should be noted that an average KLM flight deal for this route in this time was higher, at £833 round-trip. KLM operates 2 flights out of London Heathrow Airport into Washington, D.C. in an average week, so prices vary by time and availability. 1,350 KLM reviews by users on momondo have scored the airline at 7.8/10.


Why use momondo?

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

Finding the right flight to Washington, D.C. from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

Flights from London to Washington, D.C. 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 London to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Washington, D.C..

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

Of course. momondo tracks the price of London to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.