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Cheap flights from London Heathrow Airport to Washington, D.C. from €397

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.
12:15 - 18:30LHR-BWI
11h 15m1 stop
19:30 - 19:30BWI-LHR
19h 00m1 stop
€515Icelandair
Find Deal
Fri, 10 Jan - Wed, 15 Jan
12:15 - 18:30LHR-BWI
11h 15m1 stop
19:30 - 10:50BWI-LHR
10h 20m1 stop
€516Icelandair
Find Deal
Sat, 15 Feb - Sat, 22 Feb
06:00 - 15:00LHR-IAD
14h 00m1 stop
19:15 - 12:40IAD-LHR
12h 25m1 stop
€550TAP AIR PORTUGAL
Find Deal
Thu, 6 Feb - Mon, 17 Feb
19:55 - 13:00LHR-IAD
22h 05m1 stop
19:15 - 12:40IAD-LHR
12h 25m1 stop
€553TAP AIR PORTUGAL
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Sun, 8 Dec - Mon, 20 Jan
19:30 - 15:40LHR-IAD
25h 10m1 stop
17:10 - 09:20IAD-LHR
11h 10m1 stop
€603Scandinavian Airlines
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Wed, 4 Dec - Sun, 19 Jan
19:30 - 15:40LHR-IAD
25h 10m1 stop
17:10 - 16:25IAD-LHR
18h 15m2 stops
€605Scandinavian Airlines
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Fri, 10 Jan - Wed, 15 Jan
06:40 - 21:31LHR-BWI
19h 51m2 stops
10:45 - 18:30BWI-LHR
26h 45m2 stops
€617
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Mon, 13 Jan - Sun, 26 Jan
06:40 - 21:31LHR-BWI
19h 51m2 stops
10:30 - 18:30BWI-LHR
27h 00m2 stops
€626
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Wed, 12 Feb - Wed, 19 Feb
08:50 - 15:40LHR-IAD
11h 50m1 stop
17:10 - 08:05IAD-LHR
9h 55m1 stop
€665Aer Lingus
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Fri, 29 Nov - Fri, 6 Dec
08:50 - 15:40LHR-IAD
11h 50m1 stop
17:10 - 08:05IAD-LHR
9h 55m1 stop
€665Aer Lingus
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Fri, 29 Nov - Sat, 7 Dec
06:15 - 18:40LHR-IAD
41h 25m2 stops
€397
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Thu, 12 Dec
20:50 - 23:23LHR-BWI
31h 33m3 stops
€417
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Thu, 12 Dec
20:40 - 17:00LHR-BWI
25h 20m1 stop
€421
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Thu, 12 Dec
06:00 - 15:00LHR-IAD
14h 00m1 stop
€599TAP AIR PORTUGAL
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Sat, 9 Nov
12:25 - 21:00LHR-IAD
13h 35m1 stop
€605TAP AIR PORTUGAL
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Sun, 2 Feb
12:15 - 18:25LHR-IAD
11h 10m1 stop
€634Icelandair
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Wed, 11 Dec
12:15 - 18:30LHR-BWI
11h 15m1 stop
€670Icelandair
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Thu, 21 Nov
14:50 - 09:59LHR-IAD
48h 09m2 stops
€725WestJet
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Sat, 22 Feb
07:10 - 14:35LHR-IAD
12h 25m1 stop
€789United Airlines
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Fri, 29 Nov
18:00 - 22:57LHR-BWI
33h 57m2 stops
€793United Airlines
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Fri, 8 Nov
06:40 - 15:40LHR-IAD
14h 00m1 stop
17:10 - 16:00IAD-LHR
17h 50m1 stop
€603Scandinavian Airlines
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Thu, 7 Nov - Mon, 11 Nov
16:00 - 22:48LHR-IAD
11h 48m1 stop
22:09 - 08:30IAD-LHR
29h 21m1 stop
€605United Airlines
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Fri, 8 Nov - Sat, 9 Nov
18:30 - 14:30LHR-IAD
25h 00m1 stop
19:15 - 17:30IAD-LHR
17h 15m1 stop
€737TAP AIR PORTUGAL
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Mon, 4 Nov - Mon, 11 Nov
12:15 - 18:25LHR-IAD
11h 10m1 stop
19:40 - 10:50IAD-LHR
10h 10m1 stop
€792Icelandair
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Fri, 8 Nov - Tue, 19 Nov
12:15 - 18:30LHR-BWI
11h 15m1 stop
19:30 - 10:50BWI-LHR
10h 20m1 stop
€803Icelandair
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Fri, 8 Nov - Tue, 19 Nov
18:30 - 14:30LHR-IAD
25h 00m1 stop
22:30 - 18:55IAD-LHR
15h 25m1 stop
€865TAP AIR PORTUGAL
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Mon, 4 Nov - Fri, 8 Nov
20:50 - 21:00LHR-IAD
53h 10m2 stops
19:15 - 17:30IAD-LHR
17h 15m1 stop
€887
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Mon, 4 Nov - Mon, 11 Nov
06:40 - 12:15LHR-IAD
34h 35m3 stops
19:40 - 10:50IAD-LHR
10h 10m1 stop
€900
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Mon, 4 Nov - Mon, 11 Nov
08:40 - 15:45LHR-IAD
12h 05m1 stop
21:00 - 09:30IAD-LHR
7h 30mdirect
€955Delta
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Wed, 6 Nov - Sat, 22 Feb
13:05 - 16:45LHR-IAD
8h 40mdirect
21:00 - 09:30IAD-LHR
7h 30mdirect
€965Delta
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Wed, 6 Nov - Sat, 22 Feb
16:30 - 19:45LHR-IAD
8h 15mdirect
22:55 - 10:05IAD-LHR
7h 10mdirect
€714British Airways
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Wed, 26 Feb - Wed, 12 Mar
17:05 - 20:01LHR-IAD
7h 56mdirect
21:50 - 10:05IAD-LHR
7h 15mdirect
€715Delta
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Mon, 28 Apr - Wed, 14 May
12:05 - 15:40LHR-IAD
8h 35mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
€723Austrian Airlines
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Wed, 4 Dec - Mon, 20 Jan
12:05 - 15:40LHR-IAD
8h 35mdirect
22:15 - 10:50IAD-LHR
7h 35mdirect
€724Austrian Airlines
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Tue, 3 Dec - Tue, 10 Dec
16:30 - 19:45LHR-IAD
8h 15mdirect
22:55 - 10:05IAD-LHR
7h 10mdirect
€744Finnair
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Tue, 25 Feb - Mon, 17 Mar
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
€744Finnair
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Wed, 12 Feb - Mon, 17 Feb
12:05 - 15:40LHR-IAD
8h 35mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
€759United Airlines
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Fri, 6 Dec - Tue, 10 Dec
12:05 - 15:40LHR-IAD
8h 35mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
€771Lufthansa
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Sat, 15 Feb - Wed, 19 Feb
16:20 - 20:15LHR-IAD
8h 55mdirect
22:30 - 11:05IAD-LHR
7h 35mdirect
€796United Airlines
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Tue, 24 Dec - Thu, 9 Jan
12:05 - 15:40LHR-IAD
8h 35mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
€807Lufthansa
Find Deal
Sat, 15 Feb - Sun, 16 Feb

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
10 Jan
LHR12:15London Heathrow
11h 15m
1 stop
BWI18:30Baltimore/Washington
15 Jan
BWI19:30Baltimore/Washington
19h 00m
1 stop
LHR19:30London Heathrow
Icelandair
15 Feb
LHR12:15London Heathrow
11h 15m
1 stop
BWI18:30Baltimore/Washington
22 Feb
BWI19:30Baltimore/Washington
10h 20m
1 stop
LHR10:50London Heathrow
Icelandair
29 Apr
LHR13:05London Heathrow
11h 20m
1 stop
BWI19:25Baltimore/Washington
13 May
BWI20:30Baltimore/Washington
10h 25m
1 stop
LHR11:55London Heathrow

British Airways flights from London Heathrow Airport to Washington, D.C.

Our best British Airways deals on London Heathrow Airport to Washington, D.C. flight tickets
British Airways
26 Feb
LHR16:30London Heathrow
8h 15m
IAD19:45Washington, D.C. Dulles Intl
12 Mar
IAD22:55Washington, D.C. Dulles Intl
7h 10m
LHR10:05London Heathrow
British Airways
28 Apr
LHR16:30London Heathrow
8h 00m
BWI19:30Baltimore/Washington
12 May
BWI21:20Baltimore/Washington
7h 10m
LHR09:30London Heathrow
British Airways
31 Jan
LHR15:25London Heathrow
8h 20m
BWI18:45Baltimore/Washington
6 Feb
BWI20:30Baltimore/Washington
7h 10m
LHR08:40London 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.

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?

The number of flights available between London Heathrow Airport and Washington, D.C. is 18 per day as of November 2024. The most frequent departure time is 12:00, with 100% of daily flights leaving in the afternoon.

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

As of November 2024, 130 flights take off from London Heathrow Airport and land in Washington, D.C. each week. The most common flight departure day for this route is Sunday, with 20% of weekly flights taking off on this day.

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

You could potentially save up to 50% 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

€397

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 €397. The best return flight deal from London Heathrow Airport to Washington, D.C. found on momondo in the last 72 hours is €515.
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.