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Cheap flights from London to Washington, D.C. from €483

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 to Washington, D.C. departing on 9/12. 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 to Washington, D.C.

Cheap return flights

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

Cheap last-minute flights

Planning a quick getaway from London 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 to Washington, D.C.

Find recent round-trip train or bus tickets from London 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 - 12:40IAD-LHR
14h 10m1 stop
€513TAP AIR PORTUGAL
Find Deal
Mon, 17 Feb - Sat, 22 Feb
12:15 - 18:25LHR-IAD
11h 10m1 stop
19:40 - 10:50IAD-LHR
10h 10m1 stop
€517Icelandair
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Sat, 18 Jan - Sat, 25 Jan
17:30 - 15:40LHR-IAD
27h 10m2 stops
17:10 - 16:25IAD-LHR
18h 15m2 stops
€604Scandinavian Airlines
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Thu, 16 Jan - Sun, 19 Jan
19:30 - 15:40LHR-IAD
25h 10m1 stop
18:50 - 16:25IAD-LHR
16h 35m2 stops
€605Scandinavian Airlines
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Fri, 31 Jan - Mon, 31 Mar
19:25 - 14:35LHR-IAD
24h 10m1 stop
18:25 - 06:40IAD-LHR
7h 15mdirect
€676Austrian Airlines
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Mon, 13 Jan - Mon, 20 Jan
06:00 - 14:35LHR-IAD
13h 35m1 stop
18:25 - 06:40IAD-LHR
7h 15mdirect
€677Austrian Airlines
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Tue, 11 Feb - Wed, 19 Feb
13:30 - 20:20LHR-IAD
11h 50m1 stop
18:25 - 06:40IAD-LHR
7h 15mdirect
€680Lufthansa
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Wed, 12 Feb - Wed, 19 Feb
09:30 - 15:13LHR-IAD
10h 43m1 stop
18:30 - 06:55IAD-LHR
7h 25mdirect
€681United Airlines
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Tue, 22 Apr - Mon, 5 May
13:30 - 20:20LHR-IAD
11h 50m1 stop
06:05 - 20:35IAD-LHR
9h 30m1 stop
€683United Airlines
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Mon, 13 Jan - Mon, 20 Jan
07:30 - 14:40LHR-IAD
12h 10m1 stop
17:50 - 10:45IAD-LHR
11h 55m1 stop
€709Lufthansa
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Mon, 13 Jan - Mon, 20 Jan
20:40 - 11:15LHR-BWI
43h 35m2 stops
€483
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Mon, 9 Dec
07:35 - 18:30LHR-BWI
15h 55m1 stop
€569
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Mon, 9 Dec
08:50 - 15:40LHR-IAD
11h 50m1 stop
€570Aer Lingus
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Mon, 9 Dec
16:30 - 13:00LHR-IAD
25h 30m1 stop
€606TAP AIR PORTUGAL
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Sun, 8 Dec
06:00 - 21:00LHR-IAD
20h 00m1 stop
€613TAP AIR PORTUGAL
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Wed, 5 Feb
19:55 - 13:00LHR-IAD
22h 05m1 stop
€614TAP AIR PORTUGAL
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Sun, 19 Jan
13:05 - 19:25LHR-BWI
11h 20m1 stop
€654Icelandair
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Wed, 23 Apr
12:15 - 18:25LHR-IAD
11h 10m1 stop
€680Icelandair
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Thu, 9 Jan
06:35 - 19:30LHR-IAD
17h 55m1 stop
€872Turkish Airlines
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Mon, 30 Dec
18:00 - 12:15LHR-IAD
23h 15m1 stop
€990Turkish Airlines
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Mon, 6 Jan
19:30 - 15:40LHR-IAD
25h 10m1 stop
17:10 - 16:25IAD-LHR
18h 15m2 stops
€687Scandinavian Airlines
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Wed, 4 Dec - Mon, 9 Dec
06:40 - 15:40LHR-IAD
14h 00m1 stop
17:10 - 16:25IAD-LHR
18h 15m2 stops
€703Scandinavian Airlines
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Fri, 6 Dec - Wed, 11 Dec
12:25 - 16:05LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
€921Delta
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Sun, 8 Dec - Wed, 15 Jan
08:40 - 15:45LHR-IAD
12h 05m1 stop
18:25 - 06:55IAD-LHR
7h 30mdirect
€1,039Delta
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Sun, 8 Dec - Tue, 7 Jan
18:00 - 13:51LHR-IAD
24h 51m1 stop
18:25 - 06:40IAD-LHR
7h 15mdirect
€1,043United Airlines
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Sat, 7 Dec - Sat, 14 Dec
16:20 - 20:15LHR-IAD
8h 55mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
€1,107Austrian Airlines
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Wed, 4 Dec - Wed, 11 Dec
19:25 - 14:35LHR-IAD
24h 10m1 stop
22:15 - 10:50IAD-LHR
7h 35mdirect
€1,131Austrian Airlines
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Fri, 6 Dec - Mon, 16 Dec
07:10 - 14:35LHR-IAD
12h 25m1 stop
17:56 - 07:10IAD-LHR
32h 14m1 stop
€1,132United Airlines
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Wed, 4 Dec - Sat, 14 Dec
07:30 - 14:40LHR-IAD
12h 10m1 stop
22:15 - 10:50IAD-LHR
7h 35mdirect
€1,140Lufthansa
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Fri, 6 Dec - Mon, 16 Dec
07:30 - 14:40LHR-IAD
12h 10m1 stop
18:25 - 06:40IAD-LHR
7h 15mdirect
€1,176Lufthansa
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Fri, 6 Dec - Sat, 14 Dec
12:05 - 15:40LHR-IAD
8h 35mdirect
22:15 - 10:50IAD-LHR
7h 35mdirect
€685Austrian Airlines
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Mon, 13 Jan - Mon, 20 Jan
12:05 - 15:40LHR-IAD
8h 35mdirect
22:50 - 11:05IAD-LHR
7h 15mdirect
€686Austrian Airlines
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Mon, 10 Feb - Wed, 19 Feb
16:20 - 20:15LHR-IAD
8h 55mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
€689Lufthansa
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Mon, 13 Jan - Mon, 20 Jan
12:05 - 15:40LHR-IAD
8h 35mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
€690Lufthansa
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Mon, 13 Jan - Tue, 21 Jan
16:20 - 20:15LHR-IAD
8h 55mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
€727United Airlines
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Thu, 16 Jan - Thu, 23 Jan
16:30 - 19:45LHR-IAD
8h 15mdirect
18:00 - 06:15IAD-LHR
7h 15mdirect
€736British Airways
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Mon, 13 Jan - Wed, 22 Jan
12:10 - 15:35LHR-IAD
8h 25mdirect
21:55 - 10:05IAD-LHR
7h 10mdirect
€738Finnair
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Mon, 13 Jan - Mon, 20 Jan
16:35 - 19:35LHR-BWI
8h 00mdirect
21:20 - 09:35BWI-LHR
7h 15mdirect
€742British Airways
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Tue, 22 Apr - Mon, 5 May
12:05 - 15:40LHR-IAD
8h 35mdirect
22:30 - 11:05IAD-LHR
7h 35mdirect
€763United Airlines
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Fri, 10 Jan - Fri, 17 Jan
13:35 - 16:55LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
€768Finnair
Find Deal
Tue, 11 Feb - Wed, 26 Feb

Finnair flights from London to Washington, D.C.

Our best Finnair deals on London to Washington, D.C. flight tickets
Finnair
13 Jan
LHR12:10London Heathrow
8h 25m
IAD15:35Washington, D.C. Dulles Intl
20 Jan
IAD21:55Washington, D.C. Dulles Intl
7h 10m
LHR10:05London Heathrow
Finnair
11 Feb
LHR13:35London Heathrow
8h 20m
BWI16:55Baltimore/Washington
26 Feb
BWI20:30Baltimore/Washington
7h 10m
LHR08:40London Heathrow
Finnair
13 Jan
LHR15:25London Heathrow
8h 20m
BWI18:45Baltimore/Washington
20 Jan
BWI20:30Baltimore/Washington
7h 10m
LHR08:40London Heathrow

Virgin Atlantic flights from London to Washington, D.C.

Our best Virgin Atlantic deals on London to Washington, D.C. flight tickets
Virgin Atlantic
31 Dec
LHR16:10London Heathrow
13h 28m
1 stop
IAD00:38Washington, D.C. Dulles Intl
14 Jan
IAD18:25Washington, D.C. Dulles Intl
7h 30m
LHR06:55London Heathrow
Virgin Atlantic
15 Jan
LHR11:45London Heathrow
16h 34m
2 stops
BWI23:19Baltimore/Washington
21 Jan
BWI16:47Baltimore/Washington
12h 48m
1 stop
LHR10:35London Heathrow
Virgin Atlantic
31 Dec
LHR16:10London Heathrow
13h 28m
1 stop
BWI00:38Baltimore/Washington
14 Jan
BWI11:30Baltimore/Washington
14h 35m
2 stops
LHR07:05London Heathrow

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from London 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 typical price of a round-trip flight between London and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

The cheapest month to fly to Washington, D.C. from London is in February. Flight prices, which tend to average around €560, 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 during November instead. Flights to Washington, D.C. in November, while not as cheap as those in February, still average around €570.

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 €664. In the past 72 hours, momondo users found flights from London to Washington, D.C. for as low as €541.

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

You could potentially save up to 57% on your flight if you consider stops on a London to Washington, D.C. flight.

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

As of December 2024, prices for London to Washington, D.C. flights are approximately 9% cheaper when compared to flights at the same time last year.

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

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

Cheap London to Washington, D.C. (LON to WAS) flight deals and tips

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

Best price found

€483

Fastest flight time

8h 00m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. from London in the past 72 hours is €483. The best return flight deal from London to Washington, D.C. found on momondo in the last 72 hours is €513.
The fastest flight from London to Washington, D.C. takes 8h 00m
Direct flights go from London 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 to Washington, D.C. by plane?

    A flight from London to Washington, D.C. will travel around 5893.9 km. By plane, this route typically takes 8h 00m.

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

    Prices for flights from London to Washington, D.C. refresh daily.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Washington, D.C..

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

    The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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


Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from London.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from London with this policy.

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 simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from London and alert you when they change.


An easier way to manage your Washington, D.C. trip

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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.