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Cheap flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport from £153

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport departing on 15/1. 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 Washington, D.C. Dulles Intl Airport to London

Cheap return flights

These are some of the best return flight deals from Washington, D.C. Dulles Intl Airport to London 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 Washington, D.C. Dulles Intl Airport to London.

Cheap last-minute flights

Planning a quick getaway from Washington, D.C. Dulles Intl Airport to London? 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 London, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Washington, D.C. Dulles Intl Airport to London

Find recent round-trip train or bus tickets from Washington, D.C. Dulles Intl Airport to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
20:15 - 22:40IAD-LHR
22h 25m1 stop
06:00 - 15:30LHR-IAD
13h 30m1 stop
£364TAP AIR PORTUGAL
Find Deal
Mon, 10 Mar - Tue, 18 Mar
19:15 - 22:40IAD-LHR
22h 25m1 stop
06:00 - 16:00LHR-IAD
14h 00m1 stop
£378TAP AIR PORTUGAL
Find Deal
Mon, 3 Mar - Thu, 13 Mar
19:40 - 10:50IAD-LHR
10h 10m1 stop
12:15 - 18:25LHR-IAD
11h 10m1 stop
£399Icelandair
Find Deal
Sun, 19 Jan - Sun, 26 Jan
20:40 - 19:30IAD-LHR
18h 50m1 stop
12:15 - 19:25LHR-IAD
11h 10m1 stop
£401Icelandair
Find Deal
Wed, 12 Mar - Tue, 18 Mar
18:25 - 06:55IAD-LHR
7h 30mdirect
06:20 - 19:25LHR-IAD
18h 05m1 stop
£468Virgin Atlantic
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Sun, 8 Dec - Tue, 17 Dec
18:45 - 07:15IAD-LHR
7h 30mdirect
12:25 - 16:05LHR-IAD
8h 40mdirect
£481Virgin Atlantic
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Mon, 9 Dec - Wed, 25 Dec
18:25 - 06:40IAD-LHR
7h 15mdirect
08:30 - 15:50LHR-IAD
12h 20m1 stop
£482United Airlines
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Wed, 4 Dec - Wed, 11 Dec
21:55 - 10:05IAD-LHR
7h 10mdirect
12:10 - 15:35LHR-IAD
8h 25mdirect
£486Iberia
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Wed, 15 Jan - Wed, 29 Jan
22:30 - 11:05IAD-LHR
7h 35mdirect
08:30 - 15:50LHR-IAD
12h 20m1 stop
£486United Airlines
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Wed, 11 Dec - Fri, 7 Mar
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£488Iberia
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Tue, 10 Dec - Thu, 16 Jan
19:40 - 10:50IAD-LHR
10h 10m1 stop
£153Icelandair
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Wed, 15 Jan
19:40 - 10:50IAD-LHR
10h 10m1 stop
£158Icelandair
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Thu, 6 Feb
19:40 - 19:30IAD-LHR
18h 50m1 stop
£159Icelandair
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Tue, 28 Jan
18:25 - 06:55IAD-LHR
7h 30mdirect
£293Virgin Atlantic
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Tue, 3 Dec
18:45 - 07:15IAD-LHR
7h 30mdirect
£301Virgin Atlantic
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Mon, 24 Feb
21:55 - 10:05IAD-LHR
7h 10mdirect
£309British Airways
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Wed, 5 Mar
22:30 - 11:05IAD-LHR
7h 35mdirect
£315United Airlines
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Sun, 19 Jan
08:45 - 07:10IAD-LHR
17h 25m2 stops
£318United Airlines
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Wed, 4 Dec
22:45 - 11:05IAD-LHR
7h 20mdirect
£347British Airways
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Thu, 24 Apr
22:20 - 17:45IAD-LHR
14h 25m2 stops
£355Lufthansa
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Wed, 1 Jan
17:10 - 16:00IAD-LHR
17h 50m1 stop
06:40 - 15:40LHR-IAD
14h 00m1 stop
£532Scandinavian Airlines
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Sun, 24 Nov - Thu, 12 Dec
17:10 - 16:25IAD-LHR
18h 15m2 stops
06:40 - 15:40LHR-IAD
14h 00m1 stop
£533Scandinavian Airlines
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Sat, 23 Nov - Mon, 25 Nov
18:25 - 06:55IAD-LHR
7h 30mdirect
11:30 - 19:25LHR-IAD
12h 55m1 stop
£553Virgin Atlantic
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Sun, 24 Nov - Thu, 5 Dec
18:25 - 06:55IAD-LHR
7h 30mdirect
13:15 - 16:55LHR-IAD
8h 40mdirect
£558Virgin Atlantic
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Sun, 24 Nov - Thu, 5 Dec
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£593British Airways
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Mon, 25 Nov - Thu, 12 Dec
20:10 - 12:00IAD-LHR
10h 50m1 stop
19:10 - 19:31LHR-IAD
29h 21m2 stops
£642British Airways
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Sun, 24 Nov - Tue, 3 Dec
18:30 - 06:40IAD-LHR
7h 10mdirect
12:05 - 15:30LHR-IAD
32h 25m1 stop
£696United Airlines
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Sun, 24 Nov - Tue, 3 Dec
22:05 - 07:10IAD-LHR
28h 05m2 stops
13:45 - 15:30LHR-IAD
30h 45m1 stop
£699United Airlines
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Sat, 23 Nov - Tue, 3 Dec
17:50 - 09:45IAD-LHR
10h 55m1 stop
20:15 - 15:50LHR-IAD
24h 35m2 stops
£813Lufthansa
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Mon, 25 Nov - Mon, 2 Dec
17:50 - 09:45IAD-LHR
10h 55m1 stop
08:30 - 15:50LHR-IAD
12h 20m1 stop
£827Lufthansa
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Thu, 21 Nov - Wed, 4 Dec
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 20:45LHR-IAD
8h 15mdirect
£452Iberia
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Wed, 5 Mar - Wed, 12 Mar
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£456British Airways
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Thu, 9 Jan - Thu, 16 Jan
18:45 - 07:15IAD-LHR
7h 30mdirect
12:25 - 16:05LHR-IAD
8h 40mdirect
£481Virgin Atlantic
Find Deal
Mon, 9 Dec - Wed, 25 Dec
18:45 - 07:15IAD-LHR
7h 30mdirect
12:25 - 16:05LHR-IAD
8h 40mdirect
£482Virgin Atlantic
Find Deal
Wed, 11 Dec - Wed, 18 Dec
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£493Finnair
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Tue, 28 Jan - Wed, 5 Feb
22:30 - 11:05IAD-LHR
7h 35mdirect
16:20 - 20:15LHR-IAD
8h 55mdirect
£495United Airlines
Find Deal
Wed, 4 Dec - Wed, 11 Dec
22:30 - 11:05IAD-LHR
7h 35mdirect
16:20 - 20:15LHR-IAD
8h 55mdirect
£496United Airlines
Find Deal
Wed, 4 Dec - Tue, 24 Dec
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£497Finnair
Find Deal
Wed, 8 Jan - Tue, 21 Jan
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£625American Airlines
Find Deal
Sat, 14 Dec - Fri, 27 Dec
21:55 - 10:05IAD-LHR
7h 10mdirect
12:10 - 15:35LHR-IAD
8h 25mdirect
£628American Airlines
Find Deal
Thu, 5 Dec - Fri, 20 Dec

Scandinavian Airlines flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport

Our best Scandinavian Airlines deals on Washington, D.C. Dulles Intl Airport to London Heathrow Airport flight tickets
Scandinavian Airlines
14 Mar
IAD18:10Washington, D.C. Dulles Intl
20h 20m
2 stops
LHR18:30London Heathrow
16 Mar
LHR17:00London Heathrow
27h 40m
1 stop
IAD16:40Washington, D.C. Dulles Intl
Scandinavian Airlines
1 Mar
IAD17:10Washington, D.C. Dulles Intl
17h 50m
1 stop
LHR16:00London Heathrow
2 Mar
LHR18:40London Heathrow
26h 00m
1 stop
IAD15:40Washington, D.C. Dulles Intl
Scandinavian Airlines
1 Mar
IAD17:10Washington, D.C. Dulles Intl
16h 25m
2 stops
LHR14:35London Heathrow
2 Mar
LHR19:30London Heathrow
25h 10m
1 stop
IAD15:40Washington, D.C. Dulles Intl

Virgin Atlantic flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport

Our best Virgin Atlantic deals on Washington, D.C. Dulles Intl Airport to London Heathrow Airport flight tickets
Virgin Atlantic
8 Dec
IAD18:25Washington, D.C. Dulles Intl
7h 30m
LHR06:55London Heathrow
17 Dec
LHR06:20London Heathrow
18h 05m
1 stop
IAD19:25Washington, D.C. Dulles Intl
Virgin Atlantic
9 Dec
IAD18:45Washington, D.C. Dulles Intl
7h 30m
LHR07:15London Heathrow
25 Dec
LHR12:25London Heathrow
8h 40m
IAD16:05Washington, D.C. Dulles Intl
Virgin Atlantic
11 Dec
IAD18:45Washington, D.C. Dulles Intl
7h 30m
LHR07:15London Heathrow
18 Dec
LHR12:25London Heathrow
8h 40m
IAD16:05Washington, D.C. Dulles Intl

See travel insights to London from

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

September. The cheapest time of year to fly to London Heathrow Airport from Washington, D.C. Dulles Intl Airport is September. The most expensive is June.

What is the cheapest day to depart Washington, D.C. Dulles Intl Airport for London Heathrow Airport?

Tuesday. The cheapest day of the week is usually Tuesday. The most expensive is usually Thursday.

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to London Heathrow Airport?

In the evening. Washington, D.C. Dulles Intl Airport to London Heathrow Airport flights are approximately 17% more expensive in the morning than in the evening

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

30 days before. The cheapest time to buy a flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport is approximately 30 days to departure

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

There are 2 cabin classes available to choose from on Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to London Heathrow Airport flights?

You could potentially save up to 47% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to London Heathrow Airport flight.

How have Washington, D.C. Dulles Intl Airport to London Heathrow Airport flight prices changed over time?

As of November 2024, prices for Washington, D.C. Dulles Intl Airport to London Heathrow Airport flights are approximately 2% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Washington, D.C. Dulles Intl Airport to London Heathrow Airport (IAD to LHR) flight deals and tips

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

Best price found

£153

Fastest flight time

7h 10m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Washington, D.C. Dulles Intl Airport in the past 72 hours is £153. The best return flight deal from Washington, D.C. Dulles Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is £364.
The fastest flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport takes 7h 10m
Direct flights go from Washington, D.C. Dulles Intl Airport to London Heathrow Airport every day.

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

    London Heathrow is 3664.4 mi away from Washington, D.C. Dulles Intl. In terms of flight time, this usually takes a little over 7h 10m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport are refreshed on a daily basis.

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

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

    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 Washington, D.C. Dulles Intl Airport to London Heathrow Airport.

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

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Washington, D.C. Dulles Intl Airport to London Heathrow Airport?

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


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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom £328Free CancellationRating
7.1
1,089 reviews
Search Aer Lingus flights
IcelandairPriceFrom £381Free CancellationRating
7.2
555 reviews
Search Icelandair flights
Virgin AtlanticPriceFrom £461Free CancellationRating
7.5
663 reviews
Search Virgin Atlantic flights
Air FrancePriceFrom £465Free CancellationRating
7.4
1,525 reviews
Search Air France flights
United AirlinesPriceFrom £467Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights
IberiaPriceFrom £473Free CancellationRating
7.0
2,663 reviews
Search Iberia flights
British AirwaysPriceFrom £477Free CancellationRating
6.6
6,837 reviews
Search British Airways flights
KLMPriceFrom £490Free CancellationRating
7.8
1,350 reviews
Search KLM flights
American AirlinesPriceFrom £492Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom £496Free CancellationRating
6.8
7,148 reviews
Search Lufthansa flights
  • KLM Flights From Washington, D.C. Dulles Intl Airport to London Heathrow Airport

    KLM operates around 5 flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been £707, but momondo users have found KLM deals from Washington, D.C. Dulles Intl Airport to London Heathrow Airport from as low as £621 round-trip. KLM has been scored 7.8/10 in 1,350 reviews.

  • Virgin Atlantic Flights From Washington, D.C. Dulles Intl Airport to London Heathrow Airport

    £583 is the best Virgin Atlantic flight deal from Washington, D.C. Dulles Intl Airport to London Heathrow Airport found on momondo over the last 72 hours. The average Virgin Atlantic ticket price found was closer to £740, however, with flight time and availability significantly affecting the price. Virgin Atlantic (7.5/10 from 663 user reviews) flies into London Heathrow Airport from Washington, D.C. Dulles Intl Airport 5 times in an average week so prices can vary.


Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to London for you.

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

Flights from Washington, D.C. to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Washington, D.C. to London 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 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.


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