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Cheap flights from Washington, D.C. Dulles Intl Airport to London from £151

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 departing on 10/2. 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.
19:40 - 19:30IAD-LHR
18h 50m1 stop
12:15 - 18:25LHR-IAD
11h 10m1 stop
£362Icelandair
Find Deal
Sun, 12 Jan - Tue, 21 Jan
19:40 - 10:50IAD-LHR
10h 10m1 stop
20:40 - 18:25LHR-IAD
26h 45m1 stop
£365Icelandair
Find Deal
Fri, 31 Jan - Fri, 7 Feb
18:25 - 06:55IAD-LHR
7h 30mdirect
08:40 - 15:45LHR-IAD
12h 05m1 stop
£477KLM
Find Deal
Sun, 12 Jan - Tue, 21 Jan
17:35 - 16:35IAD-LCY
18h 00m1 stop
18:10 - 15:45LCY-IAD
26h 35m1 stop
£525Virgin Atlantic
Find Deal
Mon, 13 Jan - Thu, 30 Jan
17:35 - 16:35IAD-LCY
18h 00m1 stop
08:40 - 15:45LCY-IAD
12h 05m1 stop
£532Virgin Atlantic
Find Deal
Mon, 13 Jan - Tue, 28 Jan
18:50 - 09:25IAD-LCY
10h 35m1 stop
09:15 - 15:50LCY-IAD
11h 35m1 stop
£554Lufthansa
Find Deal
Wed, 12 Mar - Wed, 2 Apr
17:35 - 09:30IAD-LCY
10h 55m1 stop
09:20 - 16:45LCY-IAD
11h 25m1 stop
£555KLM
Find Deal
Wed, 5 Mar - Wed, 12 Mar
18:10 - 16:25IAD-LCY
17h 15m1 stop
09:15 - 15:50LCY-IAD
11h 35m1 stop
£558Lufthansa
Find Deal
Mon, 21 Apr - Wed, 30 Apr
17:10 - 10:25IAD-LCY
12h 15m1 stop
06:50 - 15:40LCY-IAD
13h 50m1 stop
£668British Airways
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Wed, 29 Jan - Thu, 13 Feb
17:10 - 08:35IAD-LCY
10h 25m1 stop
06:50 - 15:40LCY-IAD
13h 50m1 stop
£689British Airways
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Wed, 29 Jan - Tue, 4 Feb
19:40 - 19:30IAD-LHR
18h 50m1 stop
£151Icelandair
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Mon, 10 Feb
19:40 - 10:55IAD-LGW
10h 15m1 stop
£153Icelandair
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Mon, 13 Jan
19:25 - 06:55IAD-LHR
7h 30mdirect
£297Virgin Atlantic
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Tue, 25 Mar
18:00 - 06:15IAD-LHR
7h 15mdirect
£300British Airways
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Mon, 3 Feb
17:50 - 06:15IAD-LHR
7h 25mdirect
£304British Airways
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Tue, 15 Apr
18:25 - 06:55IAD-LHR
7h 30mdirect
£307Virgin Atlantic
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Sun, 26 Jan
22:30 - 11:05IAD-LHR
7h 35mdirect
£319United Airlines
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Wed, 15 Jan
17:50 - 09:25IAD-LCY
10h 35m1 stop
£334Lufthansa
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Mon, 13 Jan
22:20 - 18:35IAD-LHR
15h 15m1 stop
£335United Airlines
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Wed, 1 Jan
17:50 - 09:25IAD-LCY
10h 35m1 stop
£398Lufthansa
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Mon, 30 Dec
22:20 - 07:55IAD-LHR
28h 35m1 stop
15:00 - 15:13LHR-IAD
29h 13m1 stop
£734United Airlines
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Mon, 23 Dec - Fri, 10 Jan
22:20 - 07:55IAD-LHR
28h 35m1 stop
09:00 - 09:46LHR-IAD
29h 46m2 stops
£737United Airlines
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Mon, 23 Dec - Fri, 10 Jan
20:10 - 09:15IAD-LHR
32h 05m1 stop
16:30 - 19:45LHR-IAD
8h 15mdirect
£768British Airways
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Mon, 23 Dec - Fri, 24 Jan
20:10 - 09:15IAD-LHR
32h 05m1 stop
16:30 - 19:45LHR-IAD
8h 15mdirect
£771British Airways
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Mon, 23 Dec - Fri, 10 Jan
22:20 - 11:15IAD-LHR
31h 55m1 stop
12:05 - 16:25LHR-IAD
33h 20m1 stop
£985Lufthansa
Find Deal
Sat, 21 Dec - Mon, 20 Jan
22:20 - 11:15IAD-LHR
31h 55m1 stop
16:20 - 20:15LHR-IAD
8h 55mdirect
£999Lufthansa
Find Deal
Sun, 22 Dec - Wed, 22 Jan
19:40 - 10:55IAD-LGW
10h 15m1 stop
11:55 - 18:25LGW-IAD
11h 30m1 stop
£1,476Icelandair
Find Deal
Fri, 20 Dec - Sun, 29 Dec
17:35 - 16:35IAD-LCY
18h 00m1 stop
10:00 - 15:45LCY-IAD
10h 45m1 stop
£1,496Virgin Atlantic
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Sun, 22 Dec - Sat, 11 Jan
19:40 - 10:55IAD-LGW
10h 15m1 stop
11:55 - 18:25LGW-IAD
11h 30m1 stop
£1,512Icelandair
Find Deal
Fri, 20 Dec - Mon, 23 Dec
17:35 - 18:25IAD-LCY
19h 50m1 stop
08:40 - 15:45LCY-IAD
12h 05m1 stop
£1,634Virgin Atlantic
Find Deal
Sat, 21 Dec - Sat, 28 Dec
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 20:45LHR-IAD
8h 15mdirect
£465Iberia
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Wed, 5 Mar - Wed, 12 Mar
22:40 - 11:05IAD-LHR
7h 25mdirect
17:00 - 20:10LHR-IAD
8h 10mdirect
£466Iberia
Find Deal
Wed, 23 Apr - Wed, 30 Apr
19:00 - 06:15IAD-LHR
7h 15mdirect
16:30 - 20:45LHR-IAD
8h 15mdirect
£495British Airways
Find Deal
Tue, 18 Mar - Wed, 26 Mar
22:55 - 10:05IAD-LHR
7h 10mdirect
12:45 - 15:50LHR-IAD
8h 05mdirect
£496British Airways
Find Deal
Tue, 25 Mar - Thu, 3 Apr
18:45 - 07:15IAD-LHR
7h 30mdirect
12:25 - 16:05LHR-IAD
8h 40mdirect
£505Virgin Atlantic
Find Deal
Mon, 13 Jan - Tue, 28 Jan
18:25 - 06:55IAD-LHR
7h 30mdirect
12:25 - 16:05LHR-IAD
8h 40mdirect
£506Virgin Atlantic
Find Deal
Sun, 12 Jan - Tue, 21 Jan
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£513Finnair
Find Deal
Wed, 22 Jan - Wed, 5 Feb
21:55 - 10:05IAD-LHR
7h 10mdirect
16:30 - 19:45LHR-IAD
8h 15mdirect
£513Finnair
Find Deal
Wed, 8 Jan - Tue, 14 Jan
18:25 - 06:40IAD-LHR
7h 15mdirect
12:05 - 15:40LHR-IAD
8h 35mdirect
£521United Airlines
Find Deal
Wed, 15 Jan - Tue, 21 Jan
22:15 - 10:40IAD-LHR
7h 25mdirect
16:40 - 20:00LHR-IAD
8h 20mdirect
£591United Airlines
Find Deal
Mon, 19 May - Tue, 27 May

Icelandair flights from Washington, D.C. Dulles Intl Airport to London

Our best Icelandair deals on Washington, D.C. Dulles Intl Airport to London flight tickets
Icelandair
12 Jan
IAD19:40Washington, D.C. Dulles Intl
18h 50m
1 stop
LHR19:30London Heathrow
21 Jan
LHR12:15London Heathrow
11h 10m
1 stop
IAD18:25Washington, D.C. Dulles Intl
Icelandair
31 Jan
IAD19:40Washington, D.C. Dulles Intl
10h 10m
1 stop
LHR10:50London Heathrow
7 Feb
LHR20:40London Heathrow
26h 45m
1 stop
IAD18:25Washington, D.C. Dulles Intl
Icelandair
31 Jan
IAD19:40Washington, D.C. Dulles Intl
10h 15m
1 stop
LGW10:55London Gatwick
7 Feb
LGW11:55London Gatwick
11h 30m
1 stop
IAD18:25Washington, D.C. Dulles Intl

KLM flights from Washington, D.C. Dulles Intl Airport to London

Our best KLM deals on Washington, D.C. Dulles Intl Airport to London flight tickets
KLM
12 Jan
IAD18:25Washington, D.C. Dulles Intl
7h 30m
LHR06:55London Heathrow
21 Jan
LHR08:40London Heathrow
12h 05m
1 stop
IAD15:45Washington, D.C. Dulles Intl
KLM
5 Mar
IAD17:35Washington, D.C. Dulles Intl
10h 55m
1 stop
LCY09:30London City
12 Mar
LCY09:20London City
11h 25m
1 stop
IAD16:45Washington, D.C. Dulles Intl
KLM
13 Jan
IAD17:35Washington, D.C. Dulles Intl
9h 35m
1 stop
LCY08:10London City
20 Jan
LCY10:00London City
10h 45m
1 stop
IAD15:45Washington, 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

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 to London?

The cheapest month to fly to London from Washington, D.C. Dulles Intl Airport is in January. Flight prices, which tend to average around £505, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around £508.

What is the cheapest day to depart on your flight to London?

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £559. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Dulles Intl Airport to London for around £686.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as £592. Flights at midday are often more expensive, with an average ticket price of £1,509.

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

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

How far in advance should I book a flight to London?

In general, most travellers find the cheapest time to book a flight to London is about 30 days prior to their departure date, when tickets on average are £620. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Washington, D.C. Dulles Intl Airport for as low as £438 on momondo.

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

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

You could potentially save up to 45% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to London flight.

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

As of December 2024, prices for Washington, D.C. Dulles Intl Airport to London flights are approximately 40% more expensive when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to London 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 (IAD to LON) 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

Best price found

£151

Fastest flight time

7h 10m

Direct flights

Every day

Airports in London

4 airports
The best one-way flight to London from Washington, D.C. Dulles Intl Airport in the past 72 hours is £151. The best return flight deal from Washington, D.C. Dulles Intl Airport to London found on momondo in the last 72 hours is £362.
The fastest flight from Washington, D.C. Dulles Intl Airport to London takes 7h 10m
Direct flights go from Washington, D.C. Dulles Intl Airport to London every day.
There are 4 airports near London: London City (LCY), London Heathrow (LHR), London Stansted (STN), London Gatwick (LGW)

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

    London is 3677.3 mi away from Washington, D.C. Dulles Intl. In terms of flight time, this usually takes a little over 7h 30m.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to London.

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

    The travel and health documents required for your trip to London 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. 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?

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


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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to London with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom £328Free CancellationRating
7.1
1,078 reviews
Search Aer Lingus flights
IcelandairPriceFrom £396Free CancellationRating
7.1
509 reviews
Search Icelandair flights
Virgin AtlanticPriceFrom £460Free CancellationRating
7.5
668 reviews
Search Virgin Atlantic flights
Air FrancePriceFrom £464Free CancellationRating
7.4
1,505 reviews
Search Air France flights
United AirlinesPriceFrom £467Free CancellationRating
7.4
9,048 reviews
Search United Airlines flights
IberiaPriceFrom £472Free CancellationRating
7.0
2,655 reviews
Search Iberia flights
British AirwaysPriceFrom £473Free CancellationRating
6.6
6,817 reviews
Search British Airways flights
KLMPriceFrom £490Free CancellationRating
7.8
1,349 reviews
Search KLM flights
LufthansaPriceFrom £507Free CancellationRating
6.8
7,087 reviews
Search Lufthansa flights
  • KLM Flights From Washington, D.C. Dulles Intl Airport to London

    The lowest priced KLM flight from Washington, D.C. Dulles Intl Airport to London from the last 72 hours was £621. Generally, KLM has 1 flight on this route every week with an average price of £727. KLM is rated 7.8/10 by our users.

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

    Across 668 Virgin Atlantic reviews on momondo, the average score is 7.5/10. Virgin Atlantic flies from Washington, D.C. Dulles Intl Airport to London about 1 time each week, with ticket deals ranging from £583 to £749. Price data is based on momondo searches in the last 72 hours.


Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to London. momondo saves you time and could save you money on your trip.

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

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

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?

Yes momondo offers price alerts on flights to London from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London