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Cheap flights from London to Washington, D.C. from €469

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 11/2. 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 return train or bus tickets from London to Washington, D.C..

All return flight deals to Washington, D.C.

The cheapest plane tickets to Washington, D.C. found on KAYAK recently.
19:50 - 15:20LHR-IAD
24h 30m1 stop
17:00 - 10:20IAD-LHR
12h 20m1 stop
€494TAP AIR PORTUGAL
Find Deal
Mon, 31 Mar - Sun, 27 Apr
08:00 - 15:20LHR-IAD
12h 20m1 stop
22:20 - 17:45IAD-LHR
14h 25m1 stop
€496TAP AIR PORTUGAL
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Tue, 1 Apr - Thu, 24 Apr
12:15 - 18:25LHR-IAD
11h 10m1 stop
19:40 - 10:50IAD-LHR
10h 10m1 stop
€528Icelandair
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Mon, 10 Feb - Mon, 17 Feb
12:15 - 18:30LHR-BWI
11h 15m1 stop
19:30 - 10:50BWI-LHR
10h 20m1 stop
€528Icelandair
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Sun, 2 Feb - Thu, 6 Feb
06:30 - 21:21LHR-IAD
19h 51m2 stops
18:25 - 06:40IAD-LHR
7h 15mdirect
€559United Airlines
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Wed, 29 Jan - Thu, 13 Feb
06:30 - 21:21LHR-IAD
19h 51m2 stops
18:25 - 06:40IAD-LHR
7h 15mdirect
€561United Airlines
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Wed, 29 Jan - Thu, 13 Feb
06:00 - 15:30LHR-IAD
14h 30m1 stop
17:30 - 13:00IAD-LHR
14h 30m1 stop
€573SWISS
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Tue, 28 Jan - Wed, 5 Feb
13:30 - 20:20LHR-IAD
11h 50m1 stop
18:25 - 06:40IAD-LHR
7h 15mdirect
€576Lufthansa
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Wed, 12 Feb - Thu, 27 Feb
06:00 - 15:30LHR-IAD
14h 30m1 stop
17:50 - 08:05IAD-LHR
33h 15m2 stops
€599SWISS
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Wed, 5 Feb - Tue, 11 Feb
13:30 - 20:20LHR-IAD
11h 50m1 stop
18:25 - 06:40IAD-LHR
7h 15mdirect
€612Lufthansa
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Sat, 8 Feb - Wed, 26 Feb
14:50 - 23:53LHR-BWI
38h 03m2 stops
€469WestJet
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Tue, 11 Feb
14:50 - 23:53LHR-BWI
38h 03m2 stops
€470WestJet
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Mon, 3 Feb
14:50 - 23:36LHR-IAD
37h 46m2 stops
€539WestJet
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Mon, 10 Feb
18:30 - 15:00LHR-IAD
25h 30m1 stop
€620TAP AIR PORTUGAL
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Wed, 22 Jan
18:45 - 15:20LHR-IAD
25h 35m1 stop
€622TAP AIR PORTUGAL
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Wed, 16 Apr
13:05 - 19:20LHR-IAD
11h 15m1 stop
€636Icelandair
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Mon, 31 Mar
20:40 - 18:25LHR-IAD
26h 45m1 stop
€638Icelandair
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Mon, 24 Feb
10:20 - 19:25LHR-BWI
14h 05m2 stops
€913
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Fri, 4 Apr
20:15 - 09:00LHR-IAD
40h 45m2 stops
€1,237Ethiopian Air
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Mon, 24 Mar
10:20 - 19:25LHR-BWI
14h 05m2 stops
€1,460
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Sun, 6 Jul
10:05 - 15:06LHR-IAD
34h 01m1 stop
08:30 - 07:10IAD-LHR
17h 40m2 stops
€718United Airlines
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Sat, 18 Jan - Mon, 20 Jan
10:05 - 15:06LHR-IAD
34h 01m1 stop
08:30 - 07:10IAD-LHR
17h 40m2 stops
€721United Airlines
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Sat, 18 Jan - Mon, 20 Jan
19:30 - 15:40LHR-IAD
25h 10m1 stop
17:10 - 17:00IAD-LHR
18h 50m2 stops
€799Scandinavian Airlines
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Thu, 16 Jan - Mon, 20 Jan
20:40 - 18:30LHR-BWI
26h 50m1 stop
19:30 - 19:30BWI-LHR
19h 00m1 stop
€806Icelandair
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Thu, 16 Jan - Wed, 22 Jan
12:15 - 18:30LHR-BWI
11h 15m1 stop
19:30 - 10:50BWI-LHR
10h 20m1 stop
€821Icelandair
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Sat, 18 Jan - Mon, 20 Jan
18:30 - 14:30LHR-IAD
25h 00m1 stop
19:15 - 21:35IAD-LHR
21h 20m1 stop
€845TAP AIR PORTUGAL
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Mon, 20 Jan - Mon, 27 Jan
18:30 - 14:30LHR-IAD
25h 00m1 stop
19:15 - 12:40IAD-LHR
12h 25m1 stop
€848TAP AIR PORTUGAL
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Mon, 20 Jan - Mon, 27 Jan
06:40 - 15:40LHR-IAD
14h 00m1 stop
17:10 - 16:00IAD-LHR
17h 50m1 stop
€943Scandinavian Airlines
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Sat, 18 Jan - Mon, 20 Jan
06:40 - 18:25LHR-IAD
16h 45m2 stops
19:40 - 10:50IAD-LHR
10h 10m1 stop
€1,043
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Fri, 17 Jan - Tue, 21 Jan
16:20 - 20:15LHR-IAD
8h 55mdirect
18:25 - 06:40IAD-LHR
7h 15mdirect
€1,110
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Mon, 20 Jan - Mon, 27 Jan
12:25 - 16:05LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
€590Delta
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Mon, 27 Jan - Mon, 3 Feb
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
€590British Airways
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Mon, 27 Jan - Mon, 3 Feb
16:30 - 19:45LHR-IAD
8h 15mdirect
21:55 - 10:05IAD-LHR
7h 10mdirect
€591British Airways
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Mon, 10 Feb - Tue, 25 Feb
12:05 - 15:40LHR-IAD
8h 35mdirect
22:15 - 10:50IAD-LHR
7h 35mdirect
€603United Airlines
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Mon, 27 Jan - Mon, 3 Feb
12:05 - 15:40LHR-IAD
8h 35mdirect
22:50 - 11:05IAD-LHR
7h 15mdirect
€604Austrian Airlines
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Tue, 11 Feb - Thu, 20 Feb
12:05 - 15:40LHR-IAD
8h 35mdirect
22:15 - 10:50IAD-LHR
7h 35mdirect
€605United Airlines
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Mon, 27 Jan - Mon, 3 Feb
16:40 - 19:50LHR-IAD
8h 10mdirect
22:15 - 10:40IAD-LHR
7h 25mdirect
€608Austrian Airlines
Find Deal
Tue, 22 Apr - Wed, 30 Apr
16:30 - 19:45LHR-IAD
8h 15mdirect
21:55 - 10:05IAD-LHR
7h 10mdirect
€612Finnair
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Tue, 11 Feb - Mon, 3 Mar
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
€612Finnair
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Wed, 12 Feb - Wed, 19 Feb
12:25 - 16:05LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
€628Virgin Atlantic
Find Deal
Fri, 31 Jan - Mon, 3 Feb

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

Our best British Airways deals on London to Washington, D.C. flight tickets
British Airways
27 Jan
LHR15:25London Heathrow
8h 20m
BWI18:45Baltimore/Washington
3 Feb
BWI20:30Baltimore/Washington
7h 10m
LHR08:40London Heathrow
British Airways
10 Feb
LHR16:30London Heathrow
8h 15m
IAD19:45Washington, D.C. Dulles Intl
25 Feb
IAD21:55Washington, D.C. Dulles Intl
7h 10m
LHR10:05London Heathrow
British Airways
26 Feb
LHR15:25London Heathrow
8h 20m
BWI18:45Baltimore/Washington
5 Mar
BWI20:30Baltimore/Washington
7h 10m
LHR08:40London Heathrow

Finnair flights from London to Washington, D.C.

Our best Finnair deals on London to Washington, D.C. flight tickets
Finnair
26 Jan
LHR15:25London Heathrow
8h 20m
BWI18:45Baltimore/Washington
3 Feb
BWI20:30Baltimore/Washington
7h 10m
LHR08:40London Heathrow
Finnair
29 Jan
LHR15:25London Heathrow
8h 20m
BWI18:45Baltimore/Washington
13 Feb
BWI20:30Baltimore/Washington
7h 10m
LHR08:40London Heathrow
Finnair
26 Jan
LHR15:25London Heathrow
8h 20m
BWI18:45Baltimore/Washington
3 Feb
BWI20:30Baltimore/Washington
7h 10m
LHR08:40London 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 €584, 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 September instead. Flights to Washington, D.C. in September, while not as cheap as those in February, still average around €623.

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

Most flyers found that booking tickets 57 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 €848. In the past 72 hours, momondo users found flights from London to Washington, D.C. for as low as €666.

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

As of January 2025, prices for London to Washington, D.C. flights are approximately 55% more expensive 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

€469

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 €469. The best return flight deal from London to Washington, D.C. found on momondo in the last 72 hours is €494.
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.?


Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Gettysburg

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.