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Cheap flights from London to Washington, D.C. from $175

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 3/14. 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.
7:45 am - 5:00 pmLTN-BWI
14h 15m1 stop
7:10 pm - 2:10 pmBWI-LTN
15h 00m1 stop
Wed, Mar 5 - Thu, Mar 13
6:30 am - 6:00 pmLTN-BWI
15h 30m1 stop
7:10 pm - 2:10 pmBWI-LTN
15h 00m1 stop
Thu, Mar 20 - Thu, Mar 27
11:00 am - 5:00 pmSTN-BWI
11h 00m1 stop
6:10 pm - 10:00 amBWI-STN
10h 50m1 stop
$384PLAY
Find Deal
Fri, Jan 31 - Sun, Feb 2
11:00 am - 5:00 pmSTN-BWI
11h 00m1 stop
7:10 pm - 10:00 amBWI-STN
10h 50m1 stop
$386PLAY
Find Deal
Wed, Mar 5 - Thu, Mar 13
11:10 am - 8:57 amLHR-DCA
25h 47m1 stop
7:00 am - 8:35 pmDCA-LHR
9h 35m1 stop
$612Lufthansa
Find Deal
Sat, Mar 15 - Fri, Mar 21
6:00 pm - 9:46 amLHR-IAD
20h 46m1 stop
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
$617Lufthansa
Find Deal
Sat, Jan 25 - Sat, Feb 8
4:30 pm - 8:45 pmLHR-IAD
8h 15mnonstop
5:55 pm - 6:15 amIAD-LHR
7h 20mnonstop
$742British Airways
Find Deal
Wed, Mar 12 - Wed, May 7
3:00 pm - 9:00 pmLHR-DCA
11h 00m1 stop
4:10 pm - 7:10 amDCA-LHR
10h 00m1 stop
$771United Airlines
Find Deal
Wed, Jan 8 - Mon, Jan 27
3:25 pm - 7:45 pmLHR-BWI
8h 20mnonstop
9:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
$773British Airways
Find Deal
Mon, Mar 17 - Thu, Mar 27
3:00 pm - 9:00 pmLHR-DCA
11h 00m1 stop
4:10 pm - 7:10 amDCA-LHR
10h 00m1 stop
$793United Airlines
Find Deal
Wed, Dec 11 - Mon, Jan 27
3:05 pm - 6:00 pmLGW-IAD
30h 55m1 stop
Fri, Mar 14
5:00 pm - 6:00 pmLGW-IAD
29h 00m2 stops
Fri, Mar 14
11:00 am - 5:00 pmSTN-BWI
11h 00m1 stop
$248PLAY
Find Deal
Wed, Jan 15
11:00 am - 6:00 pmSTN-BWI
11h 00m1 stop
$254PLAY
Find Deal
Fri, Mar 14
6:55 pm - 3:45 pmLCY-IAD
25h 50m1 stop
$587Virgin Atlantic
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Mon, Nov 25
12:30 pm - 8:54 amLHR-BWI
25h 24m1 stop
$617Virgin Atlantic
Find Deal
Sat, Dec 7
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
$796British Airways
Find Deal
Wed, Dec 11
2:10 pm - 11:09 pmLHR-DCA
13h 59m1 stop
$833British Airways
Find Deal
Tue, Mar 4
6:00 pm - 8:57 amLHR-DCA
19h 57m1 stop
$913Lufthansa
Find Deal
Fri, Dec 27
10:00 am - 8:20 pmLCY-IAD
15h 20m1 stop
$946Lufthansa
Find Deal
Wed, Jan 1
6:00 am - 5:00 pmLTN-BWI
16h 00m1 stop
6:10 pm - 1:55 pmBWI-LTN
14h 45m1 stop
Sun, Nov 24 - Mon, Jan 13
2:35 pm - 5:00 pmLGW-BWI
31h 25m1 stop
6:10 pm - 3:30 pmBWI-LGW
16h 20m1 stop
Sat, Nov 23 - Mon, Dec 9
11:00 am - 5:00 pmSTN-BWI
11h 00m1 stop
6:10 pm - 10:00 amBWI-STN
10h 50m1 stop
$521PLAY
Find Deal
Sat, Nov 23 - Wed, Dec 4
11:00 am - 5:00 pmSTN-BWI
11h 00m1 stop
6:10 pm - 10:00 amBWI-STN
10h 50m1 stop
$523PLAY
Find Deal
Sat, Nov 23 - Wed, Dec 4
2:30 pm - 10:19 amLHR-DCA
24h 49m1 stop
6:00 am - 8:35 pmDCA-LHR
9h 35m1 stop
$596Lufthansa
Find Deal
Sat, Nov 23 - Mon, Nov 25
2:30 pm - 10:19 amLHR-DCA
24h 49m1 stop
11:05 am - 5:55 amDCA-LHR
13h 50m1 stop
$678Lufthansa
Find Deal
Sat, Nov 23 - Tue, Nov 26
12:05 pm - 3:40 pmLHR-IAD
8h 35mnonstop
5:56 pm - 7:10 amIAD-LHR
32h 14m1 stop
$1,069United Airlines
Find Deal
Fri, Nov 22 - Sat, Nov 30
4:20 pm - 8:15 pmLHR-IAD
8h 55mnonstop
5:56 pm - 7:10 amIAD-LHR
32h 14m1 stop
$1,071United Airlines
Find Deal
Sat, Nov 23 - Sat, Nov 30
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
$1,177British Airways
Find Deal
Mon, Nov 25 - Mon, Dec 2
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
$1,220British Airways
Find Deal
Sat, Nov 23 - Mon, Dec 9
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
Mon, Jan 13 - Tue, Jan 21
12:25 pm - 5:05 pmLHR-IAD
8h 40mnonstop
9:50 pm - 10:05 amIAD-LHR
7h 15mnonstop
$714Delta
Find Deal
Mon, Mar 24 - Wed, Apr 2
12:25 pm - 4:05 pmLHR-IAD
8h 40mnonstop
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
$740Virgin Atlantic
Find Deal
Wed, Jan 15 - Wed, Jan 22
4:20 pm - 8:15 pmLHR-IAD
8h 55mnonstop
10:15 pm - 10:50 amIAD-LHR
7h 35mnonstop
$767Lufthansa
Find Deal
Fri, Jan 31 - Mon, Feb 3
3:25 pm - 7:45 pmLHR-BWI
8h 20mnonstop
9:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
$773British Airways
Find Deal
Mon, Mar 17 - Thu, Mar 27
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
$774British Airways
Find Deal
Mon, Jan 27 - Thu, Feb 6
4:20 pm - 8:15 pmLHR-IAD
8h 55mnonstop
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
$783Lufthansa
Find Deal
Mon, Jan 13 - Mon, Jan 20
4:20 pm - 8:15 pmLHR-IAD
8h 55mnonstop
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
$793United Airlines
Find Deal
Wed, Dec 11 - Mon, Jan 27
12:25 pm - 5:05 pmLHR-IAD
8h 40mnonstop
10:00 pm - 10:30 amIAD-LHR
7h 30mnonstop
$796Virgin Atlantic
Find Deal
Tue, Mar 25 - Sat, Mar 29
12:05 pm - 3:40 pmLHR-IAD
8h 35mnonstop
10:15 pm - 10:50 amIAD-LHR
7h 35mnonstop
$869United Airlines
Find Deal
Wed, Dec 4 - Mon, Dec 30

SWISS flights from London to Washington, D.C.

Our best SWISS deals on London to Washington, D.C. flight tickets
SWISS
Jan 15
LCY7:10 pmLondon City
26h 15m
1 stop
IAD4:25 pmWashington, D.C. Dulles Intl
Jan 22
IAD5:30 pmWashington, D.C. Dulles Intl
14h 20m
1 stop
LCY12:50 pmLondon City
SWISS
Dec 3
LCY9:15 amLondon City
12h 10m
1 stop
IAD4:25 pmWashington, D.C. Dulles Intl
Dec 10
IAD8:45 pmWashington, D.C. Dulles Intl
11h 05m
1 stop
LCY12:50 pmLondon City

TAP AIR PORTUGAL flights from London to Washington, D.C.

Our best TAP AIR PORTUGAL deals on London to Washington, D.C. flight tickets
TAP AIR PORTUGAL
Feb 17
LHR6:30 pmLondon Heathrow
25h 00m
1 stop
IAD2:30 pmWashington, D.C. Dulles Intl
Feb 22
IAD5:30 pmWashington, D.C. Dulles Intl
24h 10m
1 stop
LHR10:40 pmLondon Heathrow
TAP AIR PORTUGAL
Feb 17
LGW4:35 pmLondon Gatwick
26h 55m
1 stop
IAD2:30 pmWashington, D.C. Dulles Intl
Feb 22
IAD5:30 pmWashington, D.C. Dulles Intl
11h 20m
1 stop
LGW9:50 amLondon Gatwick
TAP AIR PORTUGAL
Jan 25
LHR6:00 amLondon Heathrow
14h 00m
1 stop
IAD3:00 pmWashington, D.C. Dulles Intl
Feb 8
IAD5:30 pmWashington, D.C. Dulles Intl
23h 05m
1 stop
LHR9:35 pmLondon 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 cheapest month to fly from London to Washington, D.C.?

February. The cheapest time of year to fly to Washington, D.C. from London is February. Most expensive is July

What is the cheapest day to depart London for Washington, D.C.?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Monday

When is the cheapest time to fly from London to Washington, D.C.?

In the morning. London to Washington, D.C. flights are approximately 24% more expensive in the afternoon than in the morning

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

London Luton - Baltimore/Washington. Fly from London Luton to Baltimore/Washington for the best London - Washington, D.C. flight prices

How far in advance should you book London to Washington, D.C. flights?

59 days before. The cheapest time to buy a flight from London to Washington, D.C. is approximately 59 days to departure

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

There are 3 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 75% 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 November 2024, prices for London to Washington, D.C. flights are approximately 3% more expensive when compared to flights at the same time last year.

What is the typical price of a round-trip flight between London and Washington, D.C.?


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

$175

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 $175. The best round-trip flight deal from London to Washington, D.C. found on momondo in the last 72 hours is $365.
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
88 reviews
Search PLAY flights
IcelandairPriceFrom $517Free CancellationRating
7.2
555 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $525Free CancellationRating
7.3
1,301 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom $538Free CancellationRating
7.1
1,089 reviews
Search Aer Lingus flights
Virgin AtlanticPriceFrom $562Free CancellationRating
7.5
663 reviews
Search Virgin Atlantic flights
IberiaPriceFrom $581Free CancellationRating
7.0
2,664 reviews
Search Iberia flights
British AirwaysPriceFrom $587Free CancellationRating
6.6
6,837 reviews
Search British Airways flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
9,173 reviews
Search United Airlines flights
TAP AIR PORTUGALPriceFrom $598Free CancellationRating
7.1
1,892 reviews
Search TAP AIR PORTUGAL flights
Austrian AirlinesPriceFrom $608Free CancellationRating
7.6
805 reviews
Search Austrian Airlines 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 $608. Generally, Delta has 3 flights on this route every week with an average price of $922. Delta is rated 8.0/10 by our users.

  • Austrian Airlines Flights From London to Washington, D.C.

    Austrian Airlines (7.6/10 from 805 reviews) operates around 14 flights from London to Washington, D.C. in any given week. The average Austrian Airlines airfare for this route is around $858, with deals from around $608 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.