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Cheap flights from London to Washington, D.C. from £190

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 3/3. 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 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.
11:00 - 17:00STN-BWI
11h 00m1 stop
18:10 - 10:00BWI-STN
10h 50m1 stop
£301PLAY
Find Deal
Mi, 5 Feb - Mo, 17 Feb
11:00 - 17:00STN-BWI
11h 00m1 stop
18:10 - 10:00BWI-STN
10h 50m1 stop
£304PLAY
Find Deal
Mo, 27 Jan - Mo, 3 Feb
12:05 - 16:25LHR-IAD
33h 20m1 stop
12:45 - 20:35IAD-LHR
26h 50m1 stop
£460Lufthansa
Find Deal
Do, 16 Jan - Sa, 18 Jan
18:00 - 08:57LHR-DCA
19h 57m1 stop
18:00 - 09:10DCA-LHR
10h 10m1 stop
£461Lufthansa
Find Deal
Sa, 18 Jan - Di, 21 Jan
14:10 - 00:18LHR-BWI
15h 08m2 stops
13:48 - 10:15BWI-LHR
15h 27m2 stops
£463Finnair
Find Deal
Mi, 15 Jan - Mi, 22 Jan
20:25 - 15:45LHR-IAD
24h 20m1 stop
20:40 - 09:10IAD-LHR
7h 30mdirect
£484Virgin Atlantic
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Mo, 27 Jan - Do, 20 Feb
15:45 - 15:45LHR-IAD
29h 00m1 stop
18:45 - 07:15IAD-LHR
7h 30mdirect
£490Virgin Atlantic
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Mo, 3 Feb - Mo, 10 Feb
12:10 - 15:35LHR-IAD
8h 25mdirect
18:00 - 06:15IAD-LHR
7h 15mdirect
£495British Airways
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Mo, 13 Jan - Mo, 20 Jan
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
£495British Airways
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Mo, 13 Jan - Mo, 20 Jan
19:00 - 13:23LHR-IAD
23h 23m2 stops
18:00 - 06:15IAD-LHR
7h 15mdirect
£510Finnair
Find Deal
Mi, 8 Jan - Mi, 22 Jan
07:40 - 17:00LGW-BWI
14h 20m1 stop
Mo, 3 Mrz
07:40 - 17:00LGW-BWI
14h 20m1 stop
Mo, 10 Feb
11:40 - 17:40STN-BWI
11h 00m1 stop
£255PLAY
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Mo, 19 Mai
11:00 - 17:00STN-BWI
11h 00m1 stop
£262PLAY
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Mi, 26 Feb
10:15 - 19:59LHR-DCA
14h 44m1 stop
£496British Airways
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Do, 9 Jan
12:10 - 15:35LHR-IAD
8h 25mdirect
£497British Airways
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Mi, 15 Jan
09:10 - 22:00LHR-DCA
17h 50m1 stop
£562Virgin Atlantic
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So, 29 Dez
08:50 - 20:08LHR-DCA
16h 18m1 stop
£563Virgin Atlantic
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Fr, 27 Dez
18:15 - 15:55LCY-IAD
26h 40m2 stops
£766Lufthansa
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Di, 31 Dez
18:15 - 14:00LCY-IAD
24h 45m2 stops
£770Lufthansa
Find Deal
Di, 7 Jan
16:55 - 17:00LHR-BWI
53h 05m2 stops
19:30 - 10:50BWI-LHR
10h 20m1 stop
Mo, 23 Dez - Do, 9 Jan
10:40 - 14:30LGW-IAD
32h 50m1 stop
19:40 - 10:55IAD-LGW
10h 15m1 stop
Mo, 23 Dez - Mi, 8 Jan
14:30 - 09:46LHR-IAD
24h 16m1 stop
08:45 - 08:25IAD-LHR
18h 40m1 stop
£853Lufthansa
Find Deal
Sa, 21 Dez - Mi, 1 Jan
14:30 - 13:51LHR-IAD
28h 21m1 stop
22:15 - 10:50IAD-LHR
7h 35mdirect
£935Lufthansa
Find Deal
Sa, 21 Dez - Sa, 28 Dez
11:30 - 22:57LHR-DCA
16h 27m2 stops
17:05 - 08:45DCA-LHR
10h 40m1 stop
£1,057Virgin Atlantic
Find Deal
Di, 24 Dez - Di, 31 Dez
11:00 - 17:00STN-BWI
11h 00m1 stop
18:10 - 10:00BWI-STN
10h 50m1 stop
£1,168PLAY
Find Deal
Fr, 20 Dez - So, 29 Dez
16:20 - 19:25LHR-BWI
32h 05m2 stops
20:30 - 08:40BWI-LHR
7h 10mdirect
£1,168British Airways
Find Deal
Mo, 23 Dez - Mo, 30 Dez
11:00 - 17:00STN-BWI
11h 00m1 stop
18:10 - 10:00BWI-STN
10h 50m1 stop
£1,175PLAY
Find Deal
Fr, 20 Dez - So, 5 Jan
12:30 - 08:54LHR-BWI
25h 24m1 stop
18:50 - 06:20BWI-LHR
30h 30m1 stop
£1,194Virgin Atlantic
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Fr, 20 Dez - Fr, 27 Dez
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
£1,255British Airways
Find Deal
So, 22 Dez - Fr, 10 Jan
16:30 - 19:45LHR-IAD
8h 15mdirect
21:55 - 10:05IAD-LHR
7h 10mdirect
£481British Airways
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Mo, 13 Jan - Mo, 20 Jan
15:25 - 18:45LHR-BWI
8h 20mdirect
21:20 - 09:35BWI-LHR
7h 15mdirect
£481British Airways
Find Deal
Mo, 20 Jan - Di, 13 Mai
12:25 - 16:05LHR-IAD
8h 40mdirect
20:40 - 09:10IAD-LHR
7h 30mdirect
£498Virgin Atlantic
Find Deal
Mo, 27 Jan - Do, 20 Feb
12:05 - 15:40LHR-IAD
8h 35mdirect
22:30 - 11:05IAD-LHR
7h 35mdirect
£499Austrian Airlines
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Mi, 15 Jan - Mi, 22 Jan
16:20 - 20:15LHR-IAD
8h 55mdirect
22:15 - 10:50IAD-LHR
7h 35mdirect
£501Austrian Airlines
Find Deal
Mo, 13 Jan - Mo, 20 Jan
12:25 - 16:05LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
£507Virgin Atlantic
Find Deal
Mo, 3 Feb - Mo, 10 Feb
16:30 - 19:45LHR-IAD
8h 15mdirect
22:40 - 11:05IAD-LHR
7h 25mdirect
£513Finnair
Find Deal
Di, 28 Jan - Mi, 9 Apr
15:25 - 18:45LHR-BWI
8h 20mdirect
20:30 - 08:40BWI-LHR
7h 10mdirect
£513Finnair
Find Deal
Mo, 13 Jan - Mo, 20 Jan
16:20 - 20:15LHR-IAD
8h 55mdirect
22:15 - 10:50IAD-LHR
7h 35mdirect
£599Lufthansa
Find Deal
Mo, 27 Jan - Mo, 3 Feb
12:05 - 15:45LHR-IAD
8h 40mdirect
19:25 - 06:40IAD-LHR
7h 15mdirect
£622Lufthansa
Find Deal
So, 16 Feb - Mo, 17 Mrz

Lufthansa flights from London to Washington, D.C.

Our best Lufthansa deals on London to Washington, D.C. flight tickets
Lufthansa
16 Jan
LHR12:05London Heathrow
33h 20m
1 stop
IAD16:25Washington, D.C. Dulles Intl
18 Jan
IAD12:45Washington, D.C. Dulles Intl
26h 50m
1 stop
LHR20:35London Heathrow
Lufthansa
18 Jan
LHR18:00London Heathrow
19h 57m
1 stop
DCA08:57Washington, D.C. Reagan-National
21 Jan
DCA18:00Washington, D.C. Reagan-National
10h 10m
1 stop
LHR09:10London Heathrow
Lufthansa
28 Dec
LHR15:00London Heathrow
24h 19m
1 stop
DCA10:19Washington, D.C. Reagan-National
8 Jan
DCA15:00Washington, D.C. Reagan-National
10h 20m
1 stop
LHR06:20London Heathrow

Aer Lingus flights from London to Washington, D.C.

Our best Aer Lingus deals on London to Washington, D.C. flight tickets
Aer Lingus
17 Jan
LHR07:50London Heathrow
12h 50m
1 stop
IAD15:40Washington, D.C. Dulles Intl
31 Jan
IAD17:10Washington, D.C. Dulles Intl
13h 15m
1 stop
LHR11:25London Heathrow
Aer Lingus
22 Dec
LCY18:05London City
26h 35m
1 stop
IAD15:40Washington, D.C. Dulles Intl
12 Jan
IAD17:10Washington, D.C. Dulles Intl
14h 30m
1 stop
LCY12:40London City

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 £467, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. in February, then you should wait until January to fly from London, when ticket prices are also cheap, with an average price of £495.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from London is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £571. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £615.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the evening is the cheapest time of day to fly from London to Washington, D.C. when you can find flight prices for as low as £541. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the afternoon, with an average ticket price of £666. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest London to Washington, D.C. flight route?

Fly from London Gatwick to Washington, D.C. Dulles Intl for the best London - Washington, D.C. flight prices

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

The ideal time to book your flight to Washington, D.C. is 60 days in advance, when prices tend to average £643. Keep in mind that you might be able to find cheaper flights to Washington, D.C. at any time. In fact, our users found flights for as low as £446 in the past 72 hours.

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

There are 4 cabin classes available to choose from on London 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 to Washington, D.C. flights?

You could potentially save up to 60% 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 13% 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

£190

Fastest flight time

7h 56m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from London in the past 72 hours is £190. The best return flight deal from London to Washington, D.C. found on momondo in the last 72 hours is £300.
The fastest flight from London to Washington, D.C. takes 7h 56m
Direct flights go from London 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 to Washington, D.C. by plane?

    The distance between London and Washington, D.C. is about 3662.3 mi. 7h 56m is a normal flight duration for this route.

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

    Prices for flights from London to Washington, D.C. were last updated today.

  • How many operators does momondo search for flights from London to Washington, D.C.?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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 license 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.?

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


Best airlines flying from London to Washington, D.C.

Compare and see reviews for airlines that fly from London to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom £248Free CancellationRating
7.1
91 reviews
Search PLAY flights
DeltaPriceFrom £338Free CancellationRating
8.0
8,604 reviews
Search Delta flights
JetBluePriceFrom £356Free CancellationRating
7.4
3,274 reviews
Search JetBlue flights
IcelandairPriceFrom £372Free CancellationRating
7.1
509 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom £400Free CancellationRating
7.1
1,878 reviews
Search TAP AIR PORTUGAL flights
Brussels AirlinesPriceFrom £404Free CancellationRating
7.4
353 reviews
Search Brussels Airlines flights
Scandinavian AirlinesPriceFrom £416Free CancellationRating
7.3
1,308 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom £419Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom £432Free CancellationRating
7.0
8,391 reviews
Search Air Canada flights
Aer LingusPriceFrom £454Free CancellationRating
7.1
1,078 reviews
Search Aer Lingus flights
  • Delta Flights From London to Washington, D.C.

    Delta flight deals from London to Washington, D.C. start from £428 round-trip. Over the 1 Delta flight for this route in a normal week, average airfare is usually £842 round-trip - but some users have found much cheaper deals with momondo.

  • KLM Flights From London to Washington, D.C.

    KLM (7.8/10 from 1,349 reviews) operates around 1 flight from London to Washington, D.C. in any given week. The average KLM airfare for this route is around £810, with deals from around £624 rare but found on momondo. Referenced prices are for round-trip London to Washington, D.C. flight searches in the last 72 hours.


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?

All flight searches from London to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for London to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for London to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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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.