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Cheap flights from London Heathrow Airport to Washington, D.C. from £192

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 14/3. 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.
07:30 - 18:00LHR-BWI
14h 30m1 stop
19:10 - 14:55BWI-LHR
15h 45m1 stop
Wed, 12 Mar - Sat, 15 Mar
08:25 - 18:01LHR-DCA
14h 36m1 stop
07:59 - 05:55DCA-LHR
16h 56m1 stop
£373JetBlue
Find Deal
Tue, 14 Jan - Mon, 20 Jan
18:00 - 09:46LHR-IAD
20h 46m1 stop
06:05 - 20:35IAD-LHR
9h 30m1 stop
£426Lufthansa
Find Deal
Sat, 18 Jan - Mon, 20 Jan
11:10 - 08:57LHR-DCA
25h 47m1 stop
07:00 - 20:35DCA-LHR
9h 35m1 stop
£483Lufthansa
Find Deal
Sat, 15 Mar - Fri, 21 Mar
16:30 - 12:55LHR-BWI
25h 25m2 stops
20:30 - 08:40BWI-LHR
7h 10mdirect
£530Finnair
Find Deal
Wed, 11 Dec - Sun, 12 Jan
16:30 - 16:49LHR-BWI
29h 19m2 stops
20:30 - 08:40BWI-LHR
7h 10mdirect
£533Finnair
Find Deal
Wed, 4 Dec - Mon, 9 Dec
15:25 - 19:45LHR-BWI
8h 20mdirect
21:30 - 08:40BWI-LHR
7h 10mdirect
£610British Airways
Find Deal
Mon, 17 Mar - Thu, 27 Mar
11:30 - 23:19LHR-BWI
16h 49m2 stops
12:39 - 06:55BWI-LHR
14h 16m2 stops
£628Virgin Atlantic
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Wed, 5 Mar - Thu, 13 Mar
15:25 - 19:45LHR-BWI
8h 20mdirect
21:30 - 08:40BWI-LHR
7h 10mdirect
£639British Airways
Find Deal
Fri, 21 Mar - Thu, 27 Mar
11:30 - 22:59LHR-BWI
15h 29m2 stops
18:55 - 11:40BWI-LHR
12h 45m1 stop
£658Virgin Atlantic
Find Deal
Wed, 12 Mar - Sat, 15 Mar
20:40 - 18:00LHR-IAD
25h 20m1 stop
Fri, 14 Mar
21:00 - 18:00LHR-IAD
25h 00m2 stops
Fri, 14 Mar
07:30 - 17:00LHR-BWI
14h 30m1 stop
Wed, 15 Jan
08:40 - 15:45LHR-IAD
12h 05m1 stop
£440Virgin Atlantic
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Mon, 25 Nov
14:35 - 22:00LHR-DCA
12h 25m1 stop
£467Virgin Atlantic
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Mon, 25 Nov
14:10 - 23:09LHR-DCA
13h 59m1 stop
£658British Airways
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Tue, 4 Mar
10:15 - 16:48LHR-DCA
11h 33m1 stop
£666Finnair
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Thu, 12 Dec
15:35 - 22:41LHR-DCA
12h 06m1 stop
£671Finnair
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Thu, 9 Jan
19:00 - 09:29LHR-DCA
19h 29m1 stop
£716British Airways
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Tue, 17 Dec
18:00 - 08:57LHR-DCA
19h 57m1 stop
£721Lufthansa
Find Deal
Fri, 27 Dec
14:30 - 10:19LHR-DCA
24h 49m1 stop
06:00 - 20:35DCA-LHR
9h 35m1 stop
£470Lufthansa
Find Deal
Sat, 23 Nov - Mon, 25 Nov
16:30 - 13:00LHR-IAD
25h 30m1 stop
19:15 - 22:40IAD-LHR
22h 25m1 stop
£517TAP AIR PORTUGAL
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Sun, 24 Nov - Mon, 13 Jan
20:40 - 18:25LHR-IAD
26h 45m1 stop
19:40 - 10:50IAD-LHR
10h 10m1 stop
£553Icelandair
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Sat, 23 Nov - Mon, 9 Dec
20:40 - 18:25LHR-IAD
26h 45m1 stop
19:40 - 10:50IAD-LHR
10h 10m1 stop
£568Icelandair
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Sat, 23 Nov - Sun, 2 Feb
11:45 - 12:42LHR-DCA
29h 57m1 stop
17:00 - 07:50DCA-LHR
9h 50m1 stop
£594Finnair
Find Deal
Sun, 24 Nov - Mon, 2 Dec
16:30 - 19:45LHR-IAD
8h 15mdirect
09:10 - 06:15IAD-LHR
16h 05m2 stops
£601Finnair
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Thu, 21 Nov - Sun, 24 Nov
08:40 - 15:45LHR-IAD
12h 05m1 stop
18:45 - 07:15IAD-LHR
7h 30mdirect
£745Virgin Atlantic
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Fri, 22 Nov - Mon, 25 Nov
08:40 - 15:45LHR-IAD
12h 05m1 stop
18:45 - 07:15IAD-LHR
7h 30mdirect
£781Virgin Atlantic
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Sun, 24 Nov - Mon, 2 Dec
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
£929British Airways
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Mon, 25 Nov - Mon, 2 Dec
14:05 - 19:59LHR-DCA
34h 54m2 stops
15:59 - 06:35DCA-LHR
9h 36m1 stop
£954British Airways
Find Deal
Sun, 24 Nov - Mon, 13 Jan
16:30 - 19:45LHR-IAD
8h 15mdirect
21:55 - 10:05IAD-LHR
7h 10mdirect
Mon, 13 Jan - Tue, 21 Jan
12:25 - 17:05LHR-IAD
8h 40mdirect
21:50 - 10:05IAD-LHR
7h 15mdirect
£564Delta
Find Deal
Mon, 24 Mar - Wed, 2 Apr
12:25 - 16:05LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
£584Virgin Atlantic
Find Deal
Wed, 15 Jan - Wed, 22 Jan
16:20 - 20:15LHR-IAD
8h 55mdirect
22:15 - 10:50IAD-LHR
7h 35mdirect
£605Lufthansa
Find Deal
Fri, 31 Jan - Mon, 3 Feb
15:25 - 19:45LHR-BWI
8h 20mdirect
21:30 - 08:40BWI-LHR
7h 10mdirect
£610British Airways
Find Deal
Mon, 17 Mar - Thu, 27 Mar
16:30 - 19:45LHR-IAD
8h 15mdirect
21:55 - 10:05IAD-LHR
7h 10mdirect
£611British Airways
Find Deal
Mon, 27 Jan - Thu, 6 Feb
16:20 - 20:15LHR-IAD
8h 55mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
£618Lufthansa
Find Deal
Mon, 13 Jan - Mon, 20 Jan
16:30 - 19:45LHR-IAD
8h 15mdirect
21:55 - 10:05IAD-LHR
7h 10mdirect
£628Finnair
Find Deal
Mon, 27 Jan - Tue, 11 Feb
12:25 - 17:05LHR-IAD
8h 40mdirect
22:00 - 10:30IAD-LHR
7h 30mdirect
£628Virgin Atlantic
Find Deal
Tue, 25 Mar - Sat, 29 Mar
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
£635Finnair
Find Deal
Wed, 4 Dec - Mon, 9 Dec

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

Our best Scandinavian Airlines deals on London Heathrow Airport to Washington, D.C. flight tickets
Scandinavian Airlines
31 Jan
LHR21:05London Heathrow
23h 35m
2 stops
IAD15:40Washington, D.C. Dulles Intl
31 Mar
IAD18:50Washington, D.C. Dulles Intl
18h 40m
1 stop
LHR18:30London Heathrow
Scandinavian Airlines
17 Jan
LHR06:40London Heathrow
38h 00m
2 stops
IAD15:40Washington, D.C. Dulles Intl
24 Jan
IAD17:10Washington, D.C. Dulles Intl
11h 10m
1 stop
LHR09:20London Heathrow
Scandinavian Airlines
28 Nov
LHR19:30London Heathrow
25h 10m
1 stop
IAD15:40Washington, D.C. Dulles Intl
1 Feb
IAD17:10Washington, D.C. Dulles Intl
11h 10m
1 stop
LHR09:20London Heathrow

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
7 Feb
LHR19:55London Heathrow
24h 05m
1 stop
IAD15:00Washington, D.C. Dulles Intl
16 Feb
IAD22:30Washington, D.C. Dulles Intl
18h 05m
1 stop
LHR21:35London Heathrow
TAP AIR PORTUGAL
20 Jan
LHR18:30London Heathrow
25h 00m
1 stop
IAD14:30Washington, D.C. Dulles Intl
27 Jan
IAD19:15Washington, D.C. Dulles Intl
12h 25m
1 stop
LHR12:40London Heathrow
TAP AIR PORTUGAL
29 Jan
LHR08:15London Heathrow
17h 45m
1 stop
IAD21:00Washington, D.C. Dulles Intl
1 Feb
IAD17:30Washington, D.C. Dulles Intl
24h 10m
1 stop
LHR22:40London Heathrow

See travel insights to Washington, D.C. from

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 Sunday.

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

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

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

There are 2 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 26% more expensive when compared to flights at the same time last year.

What is the typical price of a round-trip flight between London Heathrow Airport and Washington, D.C.?


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

£192

Fastest flight time

8h 00m

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 £192. The best return flight deal from London Heathrow Airport to Washington, D.C. found on momondo in the last 72 hours is £372.
The fastest flight from London Heathrow Airport to Washington, D.C. takes 8h 00m
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 00m, 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 £248Free CancellationRating
7.1
88 reviews
Search PLAY flights
DeltaPriceFrom £338Free CancellationRating
8.0
8,756 reviews
Search Delta flights
JetBluePriceFrom £356Free CancellationRating
7.4
3,394 reviews
Search JetBlue flights
IcelandairPriceFrom £393Free CancellationRating
7.2
555 reviews
Search Icelandair flights
Brussels AirlinesPriceFrom £404Free CancellationRating
7.4
367 reviews
Search Brussels Airlines flights
Scandinavian AirlinesPriceFrom £416Free CancellationRating
7.3
1,301 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom £418Free CancellationRating
7.1
1,892 reviews
Search TAP AIR PORTUGAL flights
American AirlinesPriceFrom £419Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom £432Free CancellationRating
7.0
8,237 reviews
Search Air Canada flights
British AirwaysPriceFrom £448Free CancellationRating
6.6
6,837 reviews
Search British Airways flights
  • Delta Flights From London Heathrow Airport to Washington, D.C.

    Delta flies from London Heathrow Airport to Washington, D.C. around 3 times per week, with 8,756 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 £810 round-trip. KLM operates 3 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.