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Cheap flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport from $194

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 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 Washington, D.C. Dulles Intl Airport to London

Cheap round-trip flights

These are some of the best round-trip 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 layovers.

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.
5:30 pm - 10:40 pmIAD-LHR
24h 10m1 stop
6:00 am - 3:00 pmLHR-IAD
14h 00m1 stop
$482TAP AIR PORTUGAL
Find Deal
Tue, Jan 28 - Thu, Feb 13
10:30 pm - 6:55 pmIAD-LHR
15h 25m1 stop
7:55 pm - 3:00 pmLHR-IAD
24h 05m1 stop
$483TAP AIR PORTUGAL
Find Deal
Fri, Jan 31 - Fri, Feb 7
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
4:30 pm - 8:45 pmLHR-IAD
8h 15mnonstop
$572Iberia
Find Deal
Wed, Mar 5 - Wed, Mar 12
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
7:25 am - 4:25 pmLHR-IAD
14h 00m1 stop
$596Iberia
Find Deal
Wed, Feb 19 - Wed, Feb 26
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
8:40 am - 3:45 pmLHR-IAD
12h 05m1 stop
$601Virgin Atlantic
Find Deal
Mon, Dec 9 - Wed, Dec 18
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
6:30 am - 3:45 pmLHR-IAD
14h 15m1 stop
$604Virgin Atlantic
Find Deal
Mon, Dec 9 - Wed, Dec 18
10:30 pm - 11:05 amIAD-LHR
7h 35mnonstop
1:45 pm - 4:25 pmLHR-IAD
31h 40m1 stop
$611United Airlines
Find Deal
Wed, Dec 4 - Wed, Dec 11
10:30 pm - 11:05 amIAD-LHR
7h 35mnonstop
8:30 am - 3:50 pmLHR-IAD
12h 20m1 stop
$616United Airlines
Find Deal
Wed, Dec 11 - Tue, Jan 14
5:04 pm - 8:45 amIAD-LHR
10h 41m1 stop
8:40 am - 3:45 pmLHR-IAD
12h 05m1 stop
$620Delta
Find Deal
Wed, Dec 4 - Wed, Dec 18
9:50 pm - 10:05 amIAD-LHR
7h 15mnonstop
8:40 am - 3:35 pmLHR-IAD
11h 55m1 stop
$636Delta
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Tue, Apr 22 - Fri, May 9
7:40 pm - 10:50 amIAD-LHR
10h 10m1 stop
$194Icelandair
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Mon, Feb 24
7:40 pm - 7:30 pmIAD-LHR
18h 50m1 stop
$202Icelandair
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Mon, Jan 27
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
$382Virgin Atlantic
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Mon, Dec 9
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
$385Virgin Atlantic
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Mon, Jan 27
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
$391Iberia
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Sun, Dec 8
10:15 pm - 10:50 amIAD-LHR
7h 35mnonstop
$399United Airlines
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Mon, Jan 20
10:05 pm - 7:10 amIAD-LHR
28h 05m2 stops
$403United Airlines
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Sat, Dec 7
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
$440British Airways
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Fri, Feb 21
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
$441Iberia
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Sat, Dec 7
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
$444British Airways
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Thu, Dec 5
5:10 pm - 4:25 pmIAD-LHR
18h 15m2 stops
6:40 am - 3:40 pmLHR-IAD
14h 00m1 stop
$675Scandinavian Airlines
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Sat, Nov 23 - Mon, Nov 25
7:40 pm - 10:50 amIAD-LHR
10h 10m1 stop
8:40 pm - 6:25 pmLHR-IAD
26h 45m1 stop
$713Icelandair
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Sun, Nov 24 - Sun, Dec 8
6:30 pm - 6:40 amIAD-LHR
7h 10mnonstop
8:55 am - 3:30 pmLHR-IAD
35h 35m1 stop
$731United Airlines
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Tue, Nov 26 - Tue, Dec 3
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
6:30 am - 3:45 pmLHR-IAD
14h 15m1 stop
$739Delta
Find Deal
Mon, Nov 25 - Wed, Dec 4
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
$750Iberia
Find Deal
Mon, Nov 25 - Wed, Dec 4
6:25 pm - 6:55 amIAD-LHR
7h 30mnonstop
12:25 pm - 4:05 pmLHR-IAD
8h 40mnonstop
$751Delta
Find Deal
Tue, Nov 26 - Wed, Dec 4
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
$801Iberia
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Sun, Nov 24 - Sun, Dec 8
8:10 pm - 7:00 amIAD-LHR
29h 50m1 stop
7:10 pm - 7:31 pmLHR-IAD
29h 21m2 stops
$819British Airways
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Sat, Nov 23 - Tue, Dec 3
6:30 pm - 6:40 amIAD-LHR
7h 10mnonstop
7:30 am - 3:50 pmLHR-IAD
13h 20m1 stop
$853United Airlines
Find Deal
Tue, Nov 26 - Sat, Dec 28
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
$994British Airways
Find Deal
Tue, Nov 26 - Tue, Dec 3
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
4:30 pm - 8:45 pmLHR-IAD
8h 15mnonstop
$572Iberia
Find Deal
Wed, Mar 5 - Wed, Mar 12
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
12:25 pm - 4:05 pmLHR-IAD
8h 40mnonstop
$609Virgin Atlantic
Find Deal
Mon, Dec 9 - Wed, Dec 25
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
12:25 pm - 4:05 pmLHR-IAD
8h 40mnonstop
$610Virgin Atlantic
Find Deal
Mon, Dec 9 - Wed, Dec 18
10:45 pm - 11:05 amIAD-LHR
7h 20mnonstop
5:25 pm - 8:30 pmLHR-IAD
8h 05mnonstop
$617British Airways
Find Deal
Wed, Apr 23 - Wed, May 7
10:30 pm - 11:05 amIAD-LHR
7h 35mnonstop
12:05 pm - 3:40 pmLHR-IAD
8h 35mnonstop
$627United Airlines
Find Deal
Wed, Dec 4 - Wed, Dec 11
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
12:05 pm - 3:40 pmLHR-IAD
8h 35mnonstop
$631United Airlines
Find Deal
Sun, Dec 8 - Fri, Jan 10
9:50 pm - 10:05 amIAD-LHR
7h 15mnonstop
5:05 pm - 8:01 pmLHR-IAD
7h 56mnonstop
$643Delta
Find Deal
Tue, Apr 22 - Tue, May 6
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
$645British Airways
Find Deal
Tue, Dec 31 - Tue, Jan 14
8:40 pm - 9:10 amIAD-LHR
7h 30mnonstop
12:25 pm - 4:05 pmLHR-IAD
8h 40mnonstop
$677Delta
Find Deal
Thu, Dec 5 - Fri, Dec 13
10:30 pm - 11:05 amIAD-LHR
7h 35mnonstop
4:20 pm - 8:15 pmLHR-IAD
8h 55mnonstop
$704Lufthansa
Find Deal
Sun, Jan 12 - Mon, Jan 27

TAP AIR PORTUGAL flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Washington, D.C. Dulles Intl Airport to London Heathrow Airport flight tickets
TAP AIR PORTUGAL
Jan 28
IAD5:30 pmWashington, D.C. Dulles Intl
24h 10m
1 stop
LHR10:40 pmLondon Heathrow
Feb 13
LHR6:00 amLondon Heathrow
14h 00m
1 stop
IAD3:00 pmWashington, D.C. Dulles Intl
TAP AIR PORTUGAL
Jan 31
IAD10:30 pmWashington, D.C. Dulles Intl
15h 25m
1 stop
LHR6:55 pmLondon Heathrow
Feb 7
LHR7:55 pmLondon Heathrow
24h 05m
1 stop
IAD3:00 pmWashington, D.C. Dulles Intl
TAP AIR PORTUGAL
Jan 28
IAD5:30 pmWashington, D.C. Dulles Intl
24h 10m
1 stop
LHR10:40 pmLondon Heathrow
Feb 5
LHR6:00 amLondon Heathrow
20h 00m
1 stop
IAD9:00 pmWashington, D.C. Dulles Intl

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

Our best Icelandair deals on Washington, D.C. Dulles Intl Airport to London Heathrow Airport flight tickets
Icelandair
Jan 19
IAD7:40 pmWashington, D.C. Dulles Intl
18h 50m
1 stop
LHR7:30 pmLondon Heathrow
Jan 26
LHR12:15 pmLondon Heathrow
11h 10m
1 stop
IAD6:25 pmWashington, D.C. Dulles Intl
Icelandair
Jan 12
IAD7:40 pmWashington, D.C. Dulles Intl
10h 10m
1 stop
LHR10:50 amLondon Heathrow
Jan 19
LHR12:15 pmLondon Heathrow
11h 10m
1 stop
IAD6:25 pmWashington, D.C. Dulles Intl
Icelandair
Dec 10
IAD7:40 pmWashington, D.C. Dulles Intl
18h 50m
1 stop
LHR7:30 pmLondon Heathrow
Jan 11
LHR12:15 pmLondon Heathrow
11h 10m
1 stop
IAD6:25 pmWashington, 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. Most expensive is June

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

Wednesday. The cheapest day of the week is typically Wednesday. The most expensive is typically Friday

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

In the morning. Washington, D.C. Dulles Intl Airport to London Heathrow Airport flights are approximately 8% more expensive in the evening than in the morning

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 4 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 round-trip 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

$194

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 $194. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is $482.
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?

    A flight from Washington, D.C. Dulles Intl to London Heathrow will travel around 3664.4 mi. By plane, this route typically takes 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 you'll need for your trip to London Heathrow Airport 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 London Heathrow Airport. 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 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
PLAYPriceFrom $381Free CancellationRating
7.1
88 reviews
Search PLAY flights
Scandinavian AirlinesPriceFrom $432Free CancellationRating
7.3
1,301 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom $470Free CancellationRating
7.1
1,892 reviews
Search TAP AIR PORTUGAL flights
Aer LingusPriceFrom $479Free CancellationRating
7.1
1,089 reviews
Search Aer Lingus flights
IcelandairPriceFrom $485Free CancellationRating
7.2
555 reviews
Search Icelandair flights
KLMPriceFrom $546Free CancellationRating
7.8
1,350 reviews
Search KLM flights
FinnairPriceFrom $551Free CancellationRating
7.7
1,300 reviews
Search Finnair flights
SWISSPriceFrom $572Free CancellationRating
7.6
1,637 reviews
Search SWISS flights
IberiaPriceFrom $582Free CancellationRating
7.0
2,664 reviews
Search Iberia flights
DeltaPriceFrom $583Free CancellationRating
8.0
8,759 reviews
Search Delta flights
  • Delta Flights From Washington, D.C. Dulles Intl Airport to London Heathrow Airport

    The lowest priced Delta flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport from the last 72 hours was $583. Generally, Delta has 4 flights on this route every week with an average price of $824. Delta is rated 8.0/10 by our users.

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

    $546 is the best KLM flight deal from Washington, D.C. Dulles Intl Airport to London Heathrow Airport found on momondo over the last 72 hours. The average KLM ticket price found was closer to $798, however, with flight time and availability significantly affecting the price. KLM (7.8/10 from 1,350 user reviews) flies into London Heathrow Airport from Washington, D.C. Dulles Intl Airport 4 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?

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 London from Washington, D.C..

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

Yes. All flights to London from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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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