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Cheap flights from Washington, D.C. Dulles Intl Airport to London from $190

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 3/13. 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.
7:10 pm - 10:00 amIAD-STN
10h 50m1 stop
11:00 am - 6:00 pmSTN-IAD
11h 00m1 stop
$371PLAY
Find Deal
Mon, Mar 10 - Tue, Mar 18
6:10 pm - 10:00 amIAD-STN
10h 50m1 stop
11:00 am - 6:00 pmSTN-IAD
11h 00m1 stop
$373PLAY
Find Deal
Wed, Mar 5 - Wed, Mar 12
7:40 pm - 10:55 amIAD-LGW
10h 15m1 stop
11:55 am - 6:25 pmLGW-IAD
11h 30m1 stop
$502Icelandair
Find Deal
Sun, Jan 19 - Sun, Jan 26
7:40 pm - 7:30 pmIAD-LHR
18h 50m1 stop
12:15 pm - 6:25 pmLHR-IAD
11h 10m1 stop
$506Icelandair
Find Deal
Sun, Jan 19 - Sun, Jan 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
10:30 pm - 11:05 amIAD-LHR
7h 35mnonstop
7:00 am - 2:55 pmLHR-IAD
12h 55m1 stop
$608United Airlines
Find Deal
Fri, Dec 6 - Sun, Dec 8
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
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
8:30 am - 3:50 pmLHR-IAD
12h 20m1 stop
$611United Airlines
Find Deal
Wed, Dec 4 - Wed, Dec 11
5:10 pm - 8:35 amIAD-LCY
10h 25m1 stop
9:10 am - 3:40 pmLCY-IAD
11h 30m1 stop
$853British Airways
Find Deal
Wed, Jan 8 - Wed, Jan 15
5:10 pm - 8:35 amIAD-LCY
10h 25m1 stop
6:50 am - 3:40 pmLCY-IAD
13h 50m1 stop
$854British Airways
Find Deal
Wed, Jan 22 - Tue, Jan 28
7:10 pm - 1:45 pmIAD-SEN
14h 35m2 stops
Thu, Mar 13
7:40 pm - 10:55 amIAD-LGW
10h 15m1 stop
$194Icelandair
Find Deal
Mon, Jan 6
7:10 pm - 10:00 amIAD-STN
10h 50m1 stop
$240PLAY
Find Deal
Tue, Mar 11
7:10 pm - 10:00 amIAD-STN
10h 50m1 stop
$241PLAY
Find Deal
Tue, Mar 11
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
$382Virgin Atlantic
Find Deal
Mon, Dec 9
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
$385Virgin Atlantic
Find Deal
Mon, Jan 27
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
$392British Airways
Find Deal
Sun, Mar 2
10:15 pm - 10:50 amIAD-LHR
7h 35mnonstop
$399United Airlines
Find Deal
Mon, Jan 20
10:05 pm - 7:10 amIAD-LHR
28h 05m2 stops
$403United Airlines
Find Deal
Sat, Dec 7
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
$440British Airways
Find Deal
Thu, Feb 6
7:40 pm - 10:55 amIAD-LGW
10h 15m1 stop
11:55 am - 6:25 pmLGW-IAD
11h 30m1 stop
$613Icelandair
Find Deal
Mon, Nov 25 - Thu, Dec 5
7:40 pm - 10:55 amIAD-LGW
10h 15m1 stop
11:55 am - 6:25 pmLGW-IAD
11h 30m1 stop
$628Icelandair
Find Deal
Mon, Nov 25 - Wed, Dec 4
6:10 pm - 10:00 amIAD-STN
10h 50m1 stop
11:00 am - 5:00 pmSTN-IAD
11h 00m1 stop
$641PLAY
Find Deal
Sun, Nov 24 - Tue, Nov 26
6:10 pm - 10:00 amIAD-STN
10h 50m1 stop
11:00 am - 5:00 pmSTN-IAD
11h 00m1 stop
$651PLAY
Find Deal
Sun, Nov 24 - Tue, Nov 26
6:30 pm - 6:40 amIAD-LHR
7h 10mnonstop
1:30 pm - 3:50 pmLHR-IAD
31h 20m1 stop
$898United Airlines
Find Deal
Tue, Nov 26 - Tue, Dec 3
5:10 pm - 10:15 amIAD-LHR
12h 05m1 stop
9:50 am - 3:40 pmLHR-IAD
10h 50m1 stop
$924British Airways
Find Deal
Tue, Nov 26 - Wed, Dec 4
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
$927British Airways
Find Deal
Tue, Nov 26 - Wed, Dec 4
10:10 pm - 8:35 pmIAD-LHR
17h 25m1 stop
11:10 am - 9:46 amLHR-IAD
27h 36m1 stop
$951United Airlines
Find Deal
Sat, Nov 23 - Sat, Dec 14
5:35 pm - 1:15 pmIAD-LCY
14h 40m1 stop
8:40 am - 9:50 pmLCY-IAD
18h 10m2 stops
$1,644Virgin Atlantic
Find Deal
Sat, Nov 23 - Wed, Oct 1
5:35 pm - 9:30 amIAD-LCY
10h 55m1 stop
8:40 am - 12:06 amLCY-IAD
20h 26m2 stops
$1,711Virgin Atlantic
Find Deal
Mon, Nov 25 - Wed, Nov 27
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
4:30 pm - 8:45 pmLHR-IAD
8h 15mnonstop
$570Iberia
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
Wed, Dec 11 - Wed, Dec 18
10:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
5:25 pm - 8:30 pmLHR-IAD
8h 05mnonstop
$617British Airways
Find Deal
Wed, Mar 12 - Tue, Apr 1
6:45 pm - 7:15 amIAD-LHR
7h 30mnonstop
12:25 pm - 4:05 pmLHR-IAD
8h 40mnonstop
$627Delta
Find Deal
Wed, Dec 11 - Wed, Dec 18
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
$641British Airways
Find Deal
Tue, Jan 7 - Fri, Jan 17
9:50 pm - 10:05 amIAD-LHR
7h 15mnonstop
5:05 pm - 8:01 pmLHR-IAD
7h 56mnonstop
$686Delta
Find Deal
Wed, Apr 9 - Fri, Apr 18
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
$722American Airlines
Find Deal
Thu, Jan 2 - Wed, Jan 15
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
12:05 pm - 3:40 pmLHR-IAD
8h 35mnonstop
$738United Airlines
Find Deal
Fri, Dec 13 - Thu, Jan 9
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
$769American Airlines
Find Deal
Thu, Jan 2 - Wed, Jan 8
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
12:05 pm - 3:40 pmLHR-IAD
8h 35mnonstop
$786United Airlines
Find Deal
Sat, Dec 28 - Fri, Feb 28

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

Our best TAP AIR PORTUGAL deals on Washington, D.C. Dulles Intl Airport to London 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

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

Our best Scandinavian Airlines deals on Washington, D.C. Dulles Intl Airport to London flight tickets
Scandinavian Airlines
Jan 11
IAD5:10 pmWashington, D.C. Dulles Intl
16h 25m
2 stops
LHR2:35 pmLondon Heathrow
Jan 13
LHR6:40 amLondon Heathrow
14h 00m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
Scandinavian Airlines
Mar 1
IAD5:10 pmWashington, D.C. Dulles Intl
16h 25m
2 stops
LHR2:35 pmLondon Heathrow
Mar 3
LHR6:40 amLondon Heathrow
14h 00m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
Scandinavian Airlines
Jan 17
IAD5:10 pmWashington, D.C. Dulles Intl
11h 10m
1 stop
LHR9:20 amLondon Heathrow
Jan 19
LHR7:30 pmLondon Heathrow
25h 10m
1 stop
IAD3:40 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

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 $638, 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 $643.

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

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to London is on a Tuesday. Travelers who choose to depart for London on a Tuesday will often find tickets for as low as $705. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $771. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from Washington, D.C. Dulles Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $692 when looking at flights departing in the afternoon. Flights to London are more costly at noon, with an average ticket price of $845. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

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

Most flyers found that booking tickets 23 days in advance of their planned departure date is the best time to get cheap flights to London. During this timeframe, flight prices are around $738. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $665.

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 53% 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 November 2024, prices for Washington, D.C. Dulles Intl Airport to London flights are approximately 8% cheaper 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 round-trip 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

$190

Fastest flight time

7h 10m

Direct flights

Every day

Airports in London

6 airports
The best one-way flight to London from Washington, D.C. Dulles Intl Airport in the past 72 hours is $190. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to London found on momondo in the last 72 hours is $371.
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 6 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Southend (SEN), 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. 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?

    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?

    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.

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

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

  • 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
PLAYPriceFrom $363Free CancellationRating
7.1
88 reviews
Search PLAY flights
Scandinavian AirlinesPriceFrom $432Free CancellationRating
7.3
1,294 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom $470Free CancellationRating
7.1
1,891 reviews
Search TAP AIR PORTUGAL flights
Aer LingusPriceFrom $479Free CancellationRating
7.1
1,089 reviews
Search Aer Lingus flights
IcelandairPriceFrom $485Free CancellationRating
7.2
553 reviews
Search Icelandair flights
KLMPriceFrom $546Free CancellationRating
7.8
1,349 reviews
Search KLM flights
FinnairPriceFrom $551Free CancellationRating
7.7
1,300 reviews
Search Finnair flights
SWISSPriceFrom $572Free CancellationRating
7.6
1,636 reviews
Search SWISS flights
IberiaPriceFrom $582Free CancellationRating
7.0
2,661 reviews
Search Iberia flights
DeltaPriceFrom $583Free CancellationRating
8.0
8,755 reviews
Search Delta flights
  • Delta Flights From Washington, D.C. Dulles Intl Airport to London

    Delta flight deals from Washington, D.C. Dulles Intl Airport to London start from $583 round-trip. Over the 4 Delta flights for this route in a normal week, average airfare is usually $824 round-trip - but some users have found much cheaper deals with momondo.

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

    Another popular option for Washington, D.C. Dulles Intl Airport to London flights is KLM (7.8/10, 1,349 ratings). KLM flies from Washington, D.C. Dulles Intl Airport to London around 4 times per week, with deals starting from $546 round-trip and rising to an average price of around $798.


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?

momondo does allow users to show only those flights to London from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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.

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 simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Washington, D.C. and alert you when they change.


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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London