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Cheap flights from London to Washington, D.C. from $248

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 2/24. 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 round-trip flights

These are some of the best round-trip 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 layovers.

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 am - 5:00 pmSTN-BWI
11h 00m1 stop
6:10 pm - 10:00 amBWI-STN
10h 50m1 stop
$381PLAY
Find Deal
พ., ก.พ. 5 - จ., ก.พ. 17
11:00 am - 5:00 pmSTN-BWI
11h 00m1 stop
6:10 pm - 10:00 amBWI-STN
10h 50m1 stop
$385PLAY
Find Deal
จ., ม.ค. 27 - จ., ก.พ. 3
12:05 pm - 4:25 pmLHR-IAD
33h 20m1 stop
12:45 pm - 8:35 pmIAD-LHR
26h 50m1 stop
$583Lufthansa
Find Deal
พฤ., ม.ค. 16 - ส., ม.ค. 18
6:30 am - 3:50 pmLHR-IAD
14h 20m1 stop
5:17 pm - 6:30 amIAD-LHR
32h 13m1 stop
$592Lufthansa
Find Deal
อ., ม.ค. 28 - ส., ก.พ. 1
7:30 am - 2:40 pmLHR-IAD
12h 10m1 stop
3:55 pm - 7:10 amIAD-LHR
10h 15m1 stop
$602United Airlines
Find Deal
พ., ม.ค. 15 - พ., ม.ค. 22
1:30 pm - 8:20 pmLHR-IAD
11h 50m1 stop
8:15 am - 7:10 amIAD-LHR
17h 55m2 stops
$603United Airlines
Find Deal
พ., ม.ค. 15 - พ., ม.ค. 22
8:25 pm - 3:45 pmLHR-IAD
24h 20m1 stop
8:40 pm - 9:10 amIAD-LHR
7h 30mnonstop
$614Virgin Atlantic
Find Deal
จ., ม.ค. 27 - พฤ., ก.พ. 20
11:45 am - 12:35 amLHR-BWI
17h 50m2 stops
2:01 pm - 10:35 amBWI-LHR
15h 34m1 stop
$618Virgin Atlantic
Find Deal
พ., ก.พ. 5 - จ., ก.พ. 17
12:10 pm - 3:35 pmLHR-IAD
8h 25mnonstop
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
$627British Airways
Find Deal
จ., ม.ค. 13 - จ., ม.ค. 20
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
$627British Airways
Find Deal
จ., ม.ค. 13 - จ., ม.ค. 20
7:40 am - 5:00 pmLGW-BWI
14h 20m1 stop
จ., ก.พ. 24
1:55 pm - 5:00 pmLGW-BWI
32h 05m1 stop
พฤ., ก.พ. 27
11:40 am - 5:40 pmSTN-BWI
11h 00m1 stop
$323PLAY
Find Deal
จ., พ.ค. 19
11:00 am - 5:00 pmSTN-BWI
11h 00m1 stop
$332PLAY
Find Deal
พ., ก.พ. 26
10:15 am - 7:59 pmLHR-DCA
14h 44m1 stop
$629British Airways
Find Deal
พฤ., ม.ค. 9
12:10 pm - 3:35 pmLHR-IAD
8h 25mnonstop
$630British Airways
Find Deal
พ., ม.ค. 15
11:30 am - 7:25 pmLHR-IAD
12h 55m1 stop
$712Virgin Atlantic
Find Deal
อา., ธ.ค. 29
9:10 am - 10:00 pmLHR-DCA
17h 50m1 stop
$712Virgin Atlantic
Find Deal
อา., ธ.ค. 29
4:20 pm - 7:55 pmLHR-IAD
8h 35mnonstop
$790Lufthansa
Find Deal
จ., ก.พ. 17
4:20 pm - 8:15 pmLHR-IAD
8h 55mnonstop
$793Lufthansa
Find Deal
จ., ม.ค. 27
4:55 pm - 5:00 pmLHR-BWI
53h 05m2 stops
7:30 pm - 10:50 amBWI-LHR
10h 20m1 stop
จ., ธ.ค. 23 - พฤ., ม.ค. 9
6:40 pm - 3:40 pmLHR-IAD
26h 00m1 stop
5:10 pm - 6:30 pmIAD-LHR
20h 20m1 stop
$788Scandinavian Airlines
Find Deal
อ., ธ.ค. 24 - ส., ม.ค. 11
4:20 pm - 8:15 pmLHR-IAD
8h 55mnonstop
5:17 pm - 6:30 amIAD-LHR
32h 13m1 stop
$1,098United Airlines
Find Deal
อ., ธ.ค. 24 - ส., ม.ค. 11
8:55 am - 9:36 pmLHR-BWI
17h 41m2 stops
10:52 am - 8:25 amBWI-LHR
16h 33m2 stops
$1,201United Airlines
Find Deal
อ., ธ.ค. 24 - อ., ธ.ค. 31
12:05 pm - 1:36 pmLHR-BWI
30h 31m2 stops
6:20 am - 11:15 amBWI-LHR
23h 55m1 stop
$1,375Lufthansa
Find Deal
อ., ธ.ค. 24 - ส., ธ.ค. 28
1:45 pm - 3:30 pmLHR-IAD
30h 45m1 stop
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
$1,470Lufthansa
Find Deal
อา., ธ.ค. 22 - จ., ธ.ค. 30
11:00 am - 5:00 pmSTN-BWI
11h 00m1 stop
6:10 pm - 10:00 amBWI-STN
10h 50m1 stop
$1,481PLAY
Find Deal
ศ., ธ.ค. 20 - อา., ธ.ค. 29
4:20 pm - 7:25 pmLHR-BWI
32h 05m2 stops
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
$1,481British Airways
Find Deal
จ., ธ.ค. 23 - จ., ธ.ค. 30
11:00 am - 5:00 pmSTN-BWI
11h 00m1 stop
6:10 pm - 10:00 amBWI-STN
10h 50m1 stop
$1,488PLAY
Find Deal
ศ., ธ.ค. 20 - อา., ม.ค. 5
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
$1,553British Airways
Find Deal
ศ., ธ.ค. 20 - พฤ., ธ.ค. 26
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
$610British Airways
Find Deal
จ., ม.ค. 13 - จ., ม.ค. 20
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
9:20 pm - 9:35 amBWI-LHR
7h 15mnonstop
$610British Airways
Find Deal
จ., ม.ค. 20 - อ., พ.ค. 13
4:40 pm - 7:50 pmLHR-IAD
8h 10mnonstop
6:30 pm - 6:55 amIAD-LHR
7h 25mnonstop
$618Lufthansa
Find Deal
อ., เม.ย. 29 - อ., พ.ค. 6
5:05 pm - 8:01 pmLHR-IAD
7h 56mnonstop
9:50 pm - 10:05 amIAD-LHR
7h 15mnonstop
$619Virgin Atlantic
Find Deal
พ., พ.ค. 7 - พ., พ.ค. 21
12:25 pm - 4:05 pmLHR-IAD
8h 40mnonstop
8:40 pm - 9:10 amIAD-LHR
7h 30mnonstop
$631Virgin Atlantic
Find Deal
จ., ม.ค. 27 - พฤ., ก.พ. 20
12:05 pm - 3:40 pmLHR-IAD
8h 35mnonstop
11:35 pm - 10:50 amIAD-LHR
7h 15mnonstop
$638Lufthansa
Find Deal
ศ., มี.ค. 7 - จ., มี.ค. 10
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
9:20 pm - 9:35 amBWI-LHR
7h 15mnonstop
$662American Airlines
Find Deal
พ., ม.ค. 22 - พ., พ.ค. 14
12:45 pm - 3:50 pmLHR-IAD
8h 05mnonstop
10:40 pm - 11:05 amIAD-LHR
7h 25mnonstop
$664American Airlines
Find Deal
อ., เม.ย. 29 - พฤ., พ.ค. 15
12:25 pm - 4:05 pmLHR-IAD
8h 40mnonstop
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
$697Delta
Find Deal
พ., ม.ค. 8 - พ., ม.ค. 15
12:25 pm - 4:05 pmLHR-IAD
8h 40mnonstop
9:50 pm - 10:05 amIAD-LHR
7h 15mnonstop
$700Delta
Find Deal
ศ., ม.ค. 17 - อ., พ.ค. 13

Lufthansa flights from London to Washington, D.C.

Our best Lufthansa deals on London to Washington, D.C. flight tickets
Lufthansa
Jan 16
LHR12:05 pmLondon Heathrow
33h 20m
1 stop
IAD4:25 pmWashington, D.C. Dulles Intl
Jan 18
IAD12:45 pmWashington, D.C. Dulles Intl
26h 50m
1 stop
LHR8:35 pmLondon Heathrow
Lufthansa
Jan 28
LHR6:30 amLondon Heathrow
14h 20m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
Feb 1
IAD5:17 pmWashington, D.C. Dulles Intl
32h 13m
1 stop
LHR6:30 amLondon Heathrow
Lufthansa
Dec 28
LHR12:05 pmLondon Heathrow
8h 35m
IAD3:40 pmWashington, D.C. Dulles Intl
Dec 28
IAD10:33 pmWashington, D.C. Dulles Intl
27h 22m
1 stop
LHR6:55 amLondon 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
Jan 17
LHR7:50 amLondon Heathrow
12h 50m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
Jan 31
IAD5:10 pmWashington, D.C. Dulles Intl
13h 15m
1 stop
LHR11:25 amLondon Heathrow
Aer Lingus
Dec 22
LCY6:05 pmLondon City
26h 35m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
Jan 12
IAD5:10 pmWashington, D.C. Dulles Intl
14h 30m
1 stop
LCY12:40 pmLondon 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 month of February is, on average, the cheapest month to fly to Washington, D.C. from London, with most prices found around $592. If you’re not able to fly to Washington, D.C. in February, then January is your next best option. Flight prices from London to Washington, D.C. during January average around $627.

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 Tuesday. momondo users have found tickets for Tuesday departures for as low as $723. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from London to Washington, D.C. for around $805.

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

In the morning is the cheapest time of day to fly from London to Washington, D.C. when you can find flight prices for as low as $686. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $921. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $815. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $717.

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 round-trip 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

$248

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 in the past 72 hours is $248. The best round-trip flight deal from London to Washington, D.C. found on momondo in the last 72 hours is $381.
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 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?

    There are 3662.3 mi between London and Washington, D.C.. By plane, this route typically takes 7h 56m.

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

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

  • 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.?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted 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 $327Free CancellationRating
7.1
91 reviews
Search PLAY flights
DeltaPriceFrom $444Free CancellationRating
8.0
8,600 reviews
Search Delta flights
Aer LingusPriceFrom $511Free CancellationRating
7.1
1,078 reviews
Search Aer Lingus flights
IcelandairPriceFrom $517Free CancellationRating
7.1
509 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $527Free CancellationRating
7.3
1,308 reviews
Search Scandinavian Airlines flights
IberiaPriceFrom $586Free CancellationRating
7.0
2,655 reviews
Search Iberia flights
Virgin AtlanticPriceFrom $599Free CancellationRating
7.5
668 reviews
Search Virgin Atlantic flights
Austrian AirlinesPriceFrom $608Free CancellationRating
7.5
788 reviews
Search Austrian Airlines flights
American AirlinesPriceFrom $619Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $620Free CancellationRating
6.6
6,817 reviews
Search British Airways flights
  • Delta Flights From London to Washington, D.C.

    The lowest priced Delta flight from London to Washington, D.C. from the last 72 hours was $444. Generally, Delta has 1 flight on this route every week with an average price of $936. Delta is rated 8.0/10 by our users.

  • Virgin Atlantic Flights From London to Washington, D.C.

    Virgin Atlantic (7.5/10 from 668 reviews) operates around 1 flight from London to Washington, D.C. in any given week. The average Virgin Atlantic airfare for this route is around $973, with deals from around $599 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.?

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 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?

Price alerts on flights to Washington, D.C. from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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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.