Cheap flights from Washington, D.C. to London Heathrow Airport from $203

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Flight information for Washington, D.C. to London Heathrow Airport
(WAS to LHR)

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

Best Price Found

$203

Fastest flight time

6h 20m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Washington, D.C. in the past 72 hours is $203. The best round-trip flight deal from Washington, D.C. to London Heathrow Airport found on momondo in the last 72 hours is $426.
The fastest flight from Washington, D.C. to London Heathrow Airport takes 6h 20m
Direct flights go from Washington, D.C. to London Heathrow Airport every day.

How to get the cheapest flight ticket from Washington, D.C. to London Heathrow Airport

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 Washington, D.C. to London Heathrow Airport?

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

What is the cheapest airline that flies to London Heathrow Airport from Washington, D.C.?

Scandinavian Airlines. Icelandair, Norse Atlantic UK, and PLAY are the most popular carriers operating from Washington, D.C. to London Heathrow Airport

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

60 days before. The cheapest time to buy a flight from Washington, D.C. to London Heathrow Airport is approximately 60 days to departure

How many flights depart from Washington, D.C. to London Heathrow Airport on average per day?

29 flights are operational weekly from Washington, D.C. to London Heathrow Airport as of September 2023. The most popular departure time for this route is 9:00PM, with 46% of flights per day taking off in the evening.

How many flights depart from Washington, D.C. to London Heathrow Airport on average per week?

As of September 2023, there are 204 flights per week flying from Washington, D.C. to London Heathrow Airport. The most common day of the week flights depart is Sunday, with 15% of flights taking off on this day.

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

There are 3 cabin classes available to choose from on Washington, D.C. to London Heathrow Airport 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 Washington, D.C. to London Heathrow Airport flights?

You could potentially save up to 22% on your flight if you consider stops on a Washington, D.C. to London Heathrow Airport flight.

If you are looking to fly from Washington, D.C. to London, you are most likely going to fly from Washington, D.C. Dulles Intl Airport to London Heathrow Airport, the most popular airports on that route. You may be looking for an airport near Washington, D.C. Dulles Intl Airport to depart from when traveling to London and luckily, there are options! You can try Baltimore/Washington Airport which is located in Baltimore or Washington, D.C. Reagan-National Airport which is located in Washington, D.C.. The least expensive flight option from Washington, D.C. to London will typically be IAD ā€” LHR during the month of September with an average price of $427 RT.

Washington, D.C. Dulles Intl Airport (IAD) to London Heathrow Airport (LHR)$427
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Baltimore/Washington Airport (BWI) to London Heathrow Airport (LHR)$477
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Washington, D.C. Reagan-National Airport (DCA) to London Heathrow Airport (LHR)$514
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Easily compare round-trip flights from Washington, D.C. to London Heathrow Airport

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Washington, D.C. to London Heathrow Airport by changing tabs
Scandinavian Airlines
Oct 10
IAD1:30 pmWashington, D.C. Dulles Intl
17h 30m
1 stop
LHR12:00 pmLondon Heathrow
Oct 24
LHR4:30 pmLondon Heathrow
23h 50m
1 stop
IAD4:20 pmWashington, D.C. Dulles Intl
Aer Lingus
Dec 1
IAD12:00 pmWashington, D.C. Dulles Intl
12h 20m
1 stop
LHR5:20 amLondon Heathrow
Dec 9
LHR2:50 amLondon Heathrow
16h 20m
1 stop
IAD7:10 pmWashington, D.C. Dulles Intl
Icelandair
Dec 6
IAD2:40 pmWashington, D.C. Dulles Intl
18h 50m
1 stop
LHR2:30 pmLondon Heathrow
Mar 12
LHR4:40 pmLondon Heathrow
26h 40m
1 stop
IAD7:20 pmWashington, D.C. Dulles Intl
TAP AIR PORTUGAL
Feb 18
IAD5:35 pmWashington, D.C. Dulles Intl
18h 00m
1 stop
LHR4:35 pmLondon Heathrow
Mar 3
LHR2:55 pmLondon Heathrow
22h 05m
1 stop
IAD1:00 pmWashington, D.C. Dulles Intl
Multiple Airlines
Oct 18
IAD2:50 pmWashington, D.C. Dulles Intl
14h 55m
1 stop
LHR10:45 amLondon Heathrow
Oct 25
LHR4:15 pmLondon Heathrow
26h 25m
2 stops
IAD6:40 pmWashington, D.C. Dulles Intl
Virgin Atlantic
Oct 27
IAD2:15 pmWashington, D.C. Dulles Intl
7h 30m
LHR2:45 amLondon Heathrow
Oct 29
LHR2:20 amLondon Heathrow
18h 05m
1 stop
IAD8:25 pmWashington, D.C. Dulles Intl

Find the cheapest one-way flights from Washington, D.C. to London Heathrow Airport

If you're looking for one-way flights from Washington, D.C. to London Heathrow Airport, view some of our deals below provided by Aer Lingus, British Airways and Finnair
TAP AIR PORTUGAL
Feb 7
IAD5:35 pmWashington, D.C. Dulles Intl
11h 55m
1 stop
LHR10:30 amLondon Heathrow
Aer Lingus
Dec 12
IAD12:00 pmWashington, D.C. Dulles Intl
12h 20m
1 stop
LHR5:20 amLondon Heathrow
Icelandair
Dec 12
BWI2:30 pmBaltimore/Washington
10h 20m
1 stop
LHR5:50 amLondon Heathrow

Search last-minute flights to London Heathrow Airport from Washington, D.C.

Find and compare round-trip flight prices for your last-minute flight from Washington, D.C. to London Heathrow Airport
Scandinavian Airlines
Oct 3
IAD1:30 pmWashington, D.C. Dulles Intl
17h 30m
1 stop
LHR12:00 pmLondon Heathrow
Oct 10
LHR4:30 pmLondon Heathrow
23h 50m
1 stop
IAD4:20 pmWashington, D.C. Dulles Intl
Icelandair
Oct 2
IAD4:35 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
LHR7:55 amLondon Heathrow
Oct 31
LHR4:40 pmLondon Heathrow
26h 40m
1 stop
IAD7:20 pmWashington, D.C. Dulles Intl
Aer Lingus
Oct 1
IAD4:55 pmWashington, D.C. Dulles Intl
9h 15m
1 stop
LHR7:10 amLondon Heathrow
Nov 8
LHR2:50 amLondon Heathrow
12h 40m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
JetBlue
Oct 2
DCA2:30 amWashington, D.C. Reagan-National
9h 15m
1 stop
LHR4:45 pmLondon Heathrow
Oct 18
LHR3:25 amLondon Heathrow
12h 13m
1 stop
DCA3:38 pmWashington, D.C. Reagan-National
Multiple Airlines
Oct 1
BWI2:50 pmBaltimore/Washington
21h 20m
2 stops
LHR5:10 pmLondon Heathrow
Oct 12
LHR3:35 amLondon Heathrow
15h 05m
1 stop
BWI6:40 pmBaltimore/Washington
Turkish Airlines
Oct 4
IAD12:40 pmWashington, D.C. Dulles Intl
18h 20m
1 stop
LHR12:00 pmLondon Heathrow
Oct 9
LHR12:40 pmLondon Heathrow
24h 30m
1 stop
IAD1:10 pmWashington, D.C. Dulles Intl

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

Compare and see reviews for airlines that fly from Washington, D.C. to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Norse Atlantic UKPriceFrom $290Free CancellationRating
6.6
3 reviews
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PLAYPriceFrom $335Free CancellationRating
6.4
9 reviews
Search PLAY flights
IcelandairPriceFrom $367Free CancellationRating
7.5
119 reviews
Search Icelandair flights
LufthansaPriceFrom $386Free CancellationRating
6.7
1,054 reviews
Search Lufthansa flights
Air CanadaPriceFrom $386Free CancellationRating
7.3
568 reviews
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DeltaPriceFrom $416Free CancellationRating
7.8
1,565 reviews
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Scandinavian AirlinesPriceFrom $428Free CancellationRating
7.2
445 reviews
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KLMPriceFrom $445Free CancellationRating
7.5
355 reviews
Search KLM flights
TAP AIR PORTUGALPriceFrom $470Free CancellationRating
7.1
440 reviews
Search TAP AIR PORTUGAL flights
Virgin AtlanticPriceFrom $508Free CancellationRating
7.6
329 reviews
Search Virgin Atlantic flights
  • Singapore Airlines Flights From Washington, D.C. to London Heathrow Airport

    Singapore Airlines flight deals from Washington, D.C. to London Heathrow Airport start from $559 round-trip. Over the 7 Singapore Airlines flights for this route in a normal week, average airfare is usually $715 round-trip - but some users have found much cheaper deals with momondo.

  • Delta Flights From Washington, D.C. to London Heathrow Airport

    Across 1,565 Delta reviews on momondo, the average score is 7.8/10. Delta flies from Washington, D.C. to London Heathrow Airport about 7 times each week, with ticket deals ranging from $416 to $737. Price data is based on momondo searches in the last 72 hours.


American Airlines flights from Washington, D.C. to London Heathrow Airport

Our best American Airlines deals on Washington, D.C. to London Heathrow Airport flight tickets
American Airlines
Jan 11
DCA2:45 pmWashington, D.C. Reagan-National
10h 30m
1 stop
LHR6:15 amLondon Heathrow
Jan 18
LHR5:15 amLondon Heathrow
11h 21m
1 stop
DCA4:36 pmWashington, D.C. Reagan-National
American Airlines
Oct 26
BWI4:50 pmBaltimore/Washington
7h 10m
LHR5:00 amLondon Heathrow
Oct 29
LHR11:25 amLondon Heathrow
8h 30m
BWI7:55 pmBaltimore/Washington
American Airlines
Nov 27
BWI3:40 pmBaltimore/Washington
6h 55m
LHR3:35 amLondon Heathrow
Dec 3
LHR9:10 amLondon Heathrow
14h 48m
1 stop
BWI11:58 pmBaltimore/Washington

Lufthansa flights from Washington, D.C. to London Heathrow Airport

Our best Lufthansa deals on Washington, D.C. to London Heathrow Airport flight tickets
Lufthansa
Oct 10
IAD4:30 amWashington, D.C. Dulles Intl
7h 25m
LHR4:55 pmLondon Heathrow
Nov 1
LHR4:30 amLondon Heathrow
12h 20m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
Lufthansa
Oct 2
IAD6:20 pmWashington, D.C. Dulles Intl
18h 50m
2 stops
LHR6:10 pmLondon Heathrow
Oct 31
LHR7:10 amLondon Heathrow
13h 55m
1 stop
IAD9:05 pmWashington, D.C. Dulles Intl
Lufthansa
Oct 3
IAD6:20 pmWashington, D.C. Dulles Intl
14h 20m
2 stops
LHR1:40 pmLondon Heathrow
Oct 9
LHR12:25 pmLondon Heathrow
32h 15m
1 stop
IAD8:40 pmWashington, D.C. Dulles Intl

  • How far is Washington, D.C. to London Heathrow by plane?

    Washington, D.C. and London Heathrow are 3649.4 mi apart from one another. 6h 55m is a normal flight duration for this route.

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

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

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

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

    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 Washington, D.C. to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport 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 London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.


Alternative routes for Washington, D.C. to London Heathrow Airport

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Washington, D.C. to London Gatwick Airport Flights
Fastest flight time7h 20m
Cheapest price$421
Washington, D.C. to London City Airport Flights
Fastest flight time9h 30m
Cheapest price$526
Washington, D.C. to London Stansted Airport Flights
Fastest flight time10h 25m
Cheapest price$391
Washington, D.C. to London Luton Airport Flights
Fastest flight time9h 50m
Cheapest price$375
Washington, D.C. to London Southend Airport Flights
Fastest flight time20h 25m
Cheapest price$816

Similar Washington, D.C. to London Heathrow Airport flights

Flexible with your destination? Broaden your search and find flights similar to your Washington, D.C. to London Heathrow Airport route

Why use momondo?

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

Finding the right flight to London from Washington, D.C. 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 London quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Washington, D.C. to London flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to London from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Washington, D.C. to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.


An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free ā€” and available to use no matter where you book.