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Cheap flights from London Heathrow Airport to Washington, D.C. from €440

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 12/12. 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.
18:30 - 14:30LHR-IAD
25h 00m1 stop
17:30 - 15:30IAD-LHR
17h 00m1 stop
€524TAP AIR PORTUGAL
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Mon, 17 Feb - Sat, 22 Feb
06:00 - 15:30LHR-IAD
13h 30m1 stop
20:15 - 12:40IAD-LHR
12h 25m1 stop
€525TAP AIR PORTUGAL
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Tue, 11 Mar - Mon, 24 Mar
12:15 - 18:25LHR-IAD
11h 10m1 stop
20:30 - 19:20IAD-LHR
18h 50m1 stop
€564Icelandair
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Thu, 30 Jan - Sat, 29 Mar
12:15 - 18:25LHR-IAD
11h 10m1 stop
19:40 - 19:30IAD-LHR
18h 50m1 stop
€569Icelandair
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Thu, 9 Jan - Mon, 13 Jan
19:50 - 15:40LHR-IAD
24h 50m2 stops
18:50 - 17:40IAD-LHR
17h 50m1 stop
€637Scandinavian Airlines
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Fri, 31 Jan - Mon, 31 Mar
17:30 - 15:40LHR-IAD
27h 10m2 stops
17:10 - 16:25IAD-LHR
18h 15m2 stops
€640Scandinavian Airlines
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Fri, 17 Jan - Sat, 25 Jan
06:30 - 15:45LHR-IAD
14h 15m1 stop
21:50 - 10:05IAD-LHR
7h 15mdirect
€730Delta
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Wed, 29 Jan - Wed, 21 May
15:00 - 11:30LHR-IAD
25h 30m1 stop
06:05 - 20:35IAD-LHR
9h 30m1 stop
€733United Airlines
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Mon, 13 Jan - Mon, 20 Jan
08:55 - 16:25LHR-IAD
12h 30m1 stop
08:20 - 07:10IAD-LHR
17h 50m2 stops
€735United Airlines
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Tue, 21 Jan - Tue, 28 Jan
12:25 - 16:05LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
€747Delta
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Mon, 9 Dec - Mon, 13 Jan
20:50 - 23:23LHR-BWI
31h 33m3 stops
€440
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Thu, 12 Dec
20:50 - 14:45LHR-IAD
46h 55m3 stops
€466
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Thu, 12 Dec
09:55 - 15:40LHR-IAD
34h 45m2 stops
€495
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Thu, 12 Dec
20:40 - 18:30LHR-BWI
26h 50m1 stop
€540Icelandair
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Thu, 12 Dec
06:00 - 15:00LHR-IAD
14h 00m1 stop
€575TAP AIR PORTUGAL
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Thu, 12 Dec
06:00 - 20:20LHR-IAD
19h 20m2 stops
€792TAP AIR PORTUGAL
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Wed, 22 Jan
06:35 - 19:30LHR-IAD
17h 55m1 stop
€864Turkish Airlines
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Tue, 31 Dec
06:35 - 19:30LHR-IAD
17h 55m1 stop
€877Turkish Airlines
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Mon, 30 Dec
12:10 - 15:35LHR-IAD
8h 25mdirect
€985Iberia
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Thu, 12 Dec
12:15 - 18:30LHR-BWI
11h 15m1 stop
€1,845Icelandair
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Mon, 30 Dec
19:30 - 15:40LHR-IAD
25h 10m1 stop
17:10 - 17:40IAD-LHR
19h 30m1 stop
€695Scandinavian Airlines
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Thu, 28 Nov - Thu, 5 Dec
21:05 - 15:40LHR-IAD
23h 35m2 stops
17:10 - 16:00IAD-LHR
17h 50m1 stop
€725Scandinavian Airlines
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Thu, 28 Nov - Thu, 5 Dec
19:30 - 15:40LHR-IAD
25h 10m1 stop
17:10 - 17:40IAD-LHR
19h 30m1 stop
€734Scandinavian Airlines
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Tue, 26 Nov - Thu, 5 Dec
12:15 - 18:25LHR-IAD
11h 10m1 stop
19:40 - 19:30IAD-LHR
18h 50m1 stop
€784Icelandair
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Tue, 26 Nov - Mon, 9 Dec
12:15 - 18:25LHR-IAD
11h 10m1 stop
19:40 - 19:30IAD-LHR
18h 50m1 stop
€785Icelandair
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Tue, 26 Nov - Mon, 9 Dec
22:35 - 12:15LHR-IAD
18h 40m1 stop
14:00 - 22:25IAD-LHR
27h 25m1 stop
€830Turkish Airlines
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Wed, 27 Nov - Sun, 8 Dec
18:30 - 15:00LHR-IAD
25h 30m1 stop
22:30 - 21:35IAD-LHR
18h 05m1 stop
€845TAP AIR PORTUGAL
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Wed, 27 Nov - Sun, 8 Dec
08:15 - 21:00LHR-IAD
17h 45m1 stop
17:30 - 21:35IAD-LHR
23h 05m1 stop
€872TAP AIR PORTUGAL
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Wed, 27 Nov - Tue, 3 Dec
16:20 - 20:15LHR-IAD
8h 55mdirect
17:56 - 07:10IAD-LHR
32h 14m1 stop
€1,017United Airlines
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Tue, 26 Nov - Sat, 30 Nov
16:20 - 20:15LHR-IAD
8h 55mdirect
22:09 - 06:30IAD-LHR
27h 21m1 stop
€1,048United Airlines
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Tue, 26 Nov - Sat, 7 Dec
16:30 - 19:45LHR-IAD
8h 15mdirect
17:50 - 06:05IAD-LHR
7h 15mdirect
€734British Airways
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Wed, 29 Jan - Wed, 2 Apr
15:25 - 18:45LHR-BWI
8h 20mdirect
21:20 - 09:35BWI-LHR
7h 15mdirect
€734British Airways
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Mon, 3 Feb - Thu, 3 Apr
12:25 - 16:05LHR-IAD
8h 40mdirect
18:25 - 06:55IAD-LHR
7h 30mdirect
€743Virgin Atlantic
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Tue, 21 Jan - Tue, 28 Jan
12:05 - 15:40LHR-IAD
8h 35mdirect
22:15 - 10:50IAD-LHR
7h 35mdirect
€744Austrian Airlines
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Mon, 13 Jan - Mon, 20 Jan
12:05 - 15:40LHR-IAD
8h 35mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
€745
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Wed, 22 Jan - Tue, 28 Jan
12:25 - 16:05LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
€747Delta
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Mon, 9 Dec - Mon, 13 Jan
12:25 - 16:05LHR-IAD
8h 40mdirect
18:25 - 06:55IAD-LHR
7h 30mdirect
€769Virgin Atlantic
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Wed, 15 Jan - Sun, 19 Jan
17:05 - 20:01LHR-IAD
7h 56mdirect
21:50 - 10:05IAD-LHR
7h 15mdirect
€771Delta
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Wed, 30 Apr - Sun, 4 May
16:20 - 20:15LHR-IAD
8h 55mdirect
22:15 - 10:40IAD-LHR
7h 25mdirect
€781
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Tue, 28 Jan - Sun, 30 Mar
12:05 - 15:40LHR-IAD
8h 35mdirect
22:30 - 11:05IAD-LHR
7h 35mdirect
€790Austrian Airlines
Find Deal
Tue, 10 Dec - Fri, 10 Jan

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
17 Feb
LHR18:30London Heathrow
25h 00m
1 stop
IAD14:30Washington, D.C. Dulles Intl
22 Feb
IAD17:30Washington, D.C. Dulles Intl
17h 00m
1 stop
LHR15:30London Heathrow
TAP AIR PORTUGAL
11 Mar
LHR06:00London Heathrow
13h 30m
1 stop
IAD15:30Washington, D.C. Dulles Intl
24 Mar
IAD20:15Washington, D.C. Dulles Intl
12h 25m
1 stop
LHR12:40London Heathrow
TAP AIR PORTUGAL
14 Mar
LHR12:25London Heathrow
13h 35m
1 stop
IAD22:00Washington, D.C. Dulles Intl
24 Mar
IAD20:15Washington, D.C. Dulles Intl
17h 15m
1 stop
LHR17:30London Heathrow

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

Our best Icelandair deals on London Heathrow Airport to Washington, D.C. flight tickets
Icelandair
30 Jan
LHR12:15London Heathrow
11h 10m
1 stop
IAD18:25Washington, D.C. Dulles Intl
29 Mar
IAD20:30Washington, D.C. Dulles Intl
18h 50m
1 stop
LHR19:20London Heathrow
Icelandair
9 Jan
LHR12:15London Heathrow
11h 10m
1 stop
IAD18:25Washington, D.C. Dulles Intl
13 Jan
IAD19:40Washington, D.C. Dulles Intl
18h 50m
1 stop
LHR19:30London Heathrow
Icelandair
16 Mar
LHR12:15London Heathrow
11h 10m
1 stop
IAD19:25Washington, D.C. Dulles Intl
26 Mar
IAD20:40Washington, D.C. Dulles Intl
10h 10m
1 stop
LHR10:50London 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 to Washington, D.C.?

The cheapest month to fly to Washington, D.C. from London Heathrow Airport is in February. Flight prices, which tend to average around €564, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Washington, D.C. from London Heathrow Airport during November instead. Flights to Washington, D.C. in November, while not as cheap as those in February, still average around €574.

How far in advance should I book a flight to Washington, D.C.?

Most flyers found that booking tickets 59 days in advance of their planned departure date is the best time to get cheap flights to Washington, D.C.. During this timeframe, flight prices are around €670. In the past 72 hours, momondo users found flights from London Heathrow Airport to Washington, D.C. for as low as €549.

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

You could potentially save up to 49% 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.

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

€440

Fastest flight time

7h 56m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. from London Heathrow Airport in the past 72 hours is €440. The best return flight deal from London Heathrow Airport to Washington, D.C. found on momondo in the last 72 hours is €524.
The fastest flight from London Heathrow Airport to Washington, D.C. takes 7h 56m
Direct flights go from London Heathrow Airport to Washington, D.C. every day.
There are 2 airports near Washington, D.C.: Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

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

    Washington, D.C. is 5873.1 km away from London Heathrow. A reasonable flight in good conditions will take 7h 56m.

  • 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 refreshed on a daily basis.

  • 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 stopovers. 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 licence, 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.?


Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for London to Washington, D.C. flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from London.

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

If you are not ready to book a flight from London to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.


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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 36.1 km from Washington, D.C.