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IAD - YXU

$328 Find cheap flights from Washington Dulles Airport to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to London departing on 6/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
sáb. 6/29
sáb. 7/6

Search hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to London, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Dulles Intl to London (IAD-YXU)

 
These are the cheapest deals for flights from Dulles Intl to London currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Dulles Intl to London

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Dulles Intl to London.

Recent one-way flight deals from Dulles Intl to London

Only flying one-way? Below are some of the best one-way flight deals from Dulles Intl to London found on KAYAK recently.

Recent last minute flight deals from Dulles Intl to London

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Dulles Intl to London.

Recent direct flight deals from Dulles Intl to London

The latest deals for direct flights from Dulles Intl to London so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Dulles Intl to London

Find recent round-trip train or bus tickets from Dulles Intl to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:00 pm - 9:35 pmIAD-YXU
5h 35m1 stop
9:50 am - 3:19 pmYXU-IAD
5h 29m1 stop
$667Air Canada
Find Deal
vie., jun. 28 - mar., ago. 20
4:00 pm - 9:35 pmIAD-YXU
5h 35m1 stop
3:20 pm - 8:19 pmYXU-IAD
4h 59m1 stop
$689Air Canada
Find Deal
vie., jun. 28 - jue., ago. 22
6:30 am - 2:45 pmIAD-YXU
8h 15m1 stop
3:20 pm - 8:19 pmYXU-IAD
4h 59m1 stop
$691Air Canada
Find Deal
jue., jun. 27 - mié., ago. 21
6:30 am - 2:45 pmIAD-YXU
8h 15m1 stop
3:20 pm - 8:19 pmYXU-IAD
4h 59m1 stop
$712Air Canada
Find Deal
jue., jun. 27 - dom., ago. 18
6:14 am - 2:45 pmIAD-YXU
8h 31m2 stops
3:20 pm - 8:19 pmYXU-IAD
4h 59m1 stop
$728United Airlines
Find Deal
lun., jun. 24 - mié., ago. 21
6:14 am - 2:45 pmIAD-YXU
8h 31m2 stops
9:50 am - 3:19 pmYXU-IAD
5h 29m1 stop
$750United Airlines
Find Deal
lun., jun. 24 - sáb., ago. 17
6:14 am - 2:45 pmIAD-YXU
8h 31m2 stops
9:50 am - 3:19 pmYXU-IAD
5h 29m1 stop
lun., jun. 24 - mié., jun. 26
6:14 am - 2:45 pmIAD-YXU
8h 31m2 stops
9:50 am - 8:29 pmYXU-IAD
10h 39m2 stops
lun., jun. 24 - mié., jun. 26
6:22 am - 5:18 amIAD-YXU
22h 56m3 stops
8:00 pm - 11:38 pmYXU-IAD
27h 38m3 stops
$1,400WestJet
Find Deal
lun., jun. 24 - mié., jun. 26
6:45 pm - 5:18 amIAD-YXU
10h 33m1 stop
8:00 pm - 11:38 pmYXU-IAD
27h 38m3 stops
$1,426WestJet
Find Deal
lun., jun. 24 - mié., jun. 26
4:00 pm - 9:35 pmIAD-YXU
5h 35m1 stop
$328Air Canada
Find Deal
vie., jun. 28
10:10 pm - 2:45 pmIAD-YXU
16h 35m2 stops
$338United Airlines
Find Deal
sáb., jun. 29
6:30 am - 2:45 pmIAD-YXU
8h 15m1 stop
$352Air Canada
Find Deal
jue., jun. 27
10:10 pm - 2:45 pmIAD-YXU
16h 35m2 stops
$374United Airlines
Find Deal
dom., jun. 23
6:30 am - 2:45 pmIAD-YXU
8h 15m1 stop
$377Air Canada
Find Deal
mar., jun. 25
6:30 am - 2:45 pmIAD-YXU
8h 15m1 stop
$388Air Canada
Find Deal
lun., jun. 24
6:30 am - 2:45 pmIAD-YXU
8h 15m1 stop
$395Air Canada
Find Deal
dom., jun. 23
10:15 pm - 9:15 amIAD-YXU
11h 00m1 stop
$441Air Canada
Find Deal
mié., jun. 26
6:14 am - 2:45 pmIAD-YXU
8h 31m2 stops
$487United Airlines
Find Deal
lun., jun. 24
6:14 am - 2:45 pmIAD-YXU
8h 31m2 stops
mié., jun. 26
4:00 pm - 9:36 pmIAD-YXU
5h 36m1 stop
9:50 am - 3:15 pmYXU-IAD
5h 25m1 stop
$955Air Canada
Find Deal
mar., jun. 4 - mié., jun. 12
4:00 pm - 9:36 pmIAD-YXU
5h 36m1 stop
3:25 pm - 7:48 amYXU-IAD
16h 23m1 stop
$1,054Air Canada
Find Deal
mar., jun. 4 - mar., jun. 11
4:00 pm - 9:36 pmIAD-YXU
5h 36m1 stop
9:50 am - 3:15 pmYXU-IAD
5h 25m1 stop
$1,085Air Canada
Find Deal
mar., jun. 4 - vie., jun. 7

Flights from Dulles Intl to London - Travel Insights & Trends

Get data-powered insights and trends into flights from Dulles Intl to London to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington Dulles Airport to London?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Washington Dulles Airport to London were found on Air Canada ($667) and United Airlines ($728). Air Canada proposed the cheapest one-way flight at $328.

Good to know

Cheapest flight

$328
Flight from Washington Dulles Airport to London

When to book flights from Dulles Intl to London

Are your dates flexible? Find out the best times to travel from Dulles Intl to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to London flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to London, Ontario?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to London, Ontario was $328 for a one-way ticket and $667 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and London?

    A passport is required to fly from Washington Dulles Airport to London.

  • Which aircraft models fly most regularly from Washington Dulles Airport to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to London?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and London.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and YXU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Dulles Intl to London

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
Air CanadaOverall score based on 7004 reviews
7.2Boarding
6.8Entertainment
6.2Food
7.8Crew
7.0Comfort
Airline reviews

Unable to initiate refund/reschedule the ticket #worst experience #lost 900$

2.0 MediocreAnonymous, May 2024DFW - YYZ
Read more about Air Canada reviews

Unable to initiate refund/reschedule the ticket #worst experience #lost 900$

Flight was delayed for almost 3 hours. Communication of gate change was poor. Email and screen said one gate and it was a different gate from that. Gate changed first to 64 B and then to 64 C. Originally it was 68B. 64C was not communicated properly!

This was a red eye return, so I doubt there would be anyway to make it better. Other than adding beds.

Direct nonstop flight was great. Flight was delayed and the crew announced a 2h delay on the sound system. 30 min or so later I hear my name on the sound system for immediate board. Several other passangers were late too. Reason: The crew incorrectly announced a 2h delay when in reality they meant a new boarding time at 2pm.

Flight was on time early arrival better entertainment good staff.everything was excellent

I don’t think there was entertainment? No mention of it. It was a good flight. Only complaint was my seat cushion was not attached and kept slipping.

My second flight ended up being through United and it was fine. Again, just frustrating that it was so late.

First time flying Air Canada and the trip was very pleasant! They did a great job getting us out of Toronto and into Rome (early!) For an international flight it was very enjoyable.

You do not have a space for flight cancelled. BUT!!! Air Canada handled it great. Was booked on another airline for the next day. The original flight was booked solid. But he precheck by the maintenance found a mechanical problem and the plane was not safe to fly. It was an inconvenience to have to wait until next day but I would rather arrive safely.

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

Book cheap flights from Washington, D.C. to London

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to London found on KAYAK in the last 72 hours.
6/28vie.
1 stopAir Canada
5h 35mIAD-YXU
$328
6/29sáb.
2 stopsUnited Airlines
16h 35mIAD-YXU
$338
6/27jue.
1 stopAir Canada
8h 15mIAD-YXU
$352
6/23dom.
2 stopsUnited Airlines
16h 35mIAD-YXU
$374
6/25mar.
1 stopAir Canada
8h 15mIAD-YXU
$377
6/24lun.
1 stopAir Canada
8h 15mIAD-YXU
$388
6/23dom.
1 stopAir Canada
8h 15mIAD-YXU
$395
6/26mié.
1 stopAir Canada
11h 00mIAD-YXU
$441
6/24lun.
2 stopsUnited Airlines
8h 31mIAD-YXU
$487
6/26mié.
2 stops
8h 31mIAD-YXU
$513

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Last minute flights from Dulles Intl to London

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to London that are departing in the next 10 days.
6/4mar.
multi-stopAir Canada
5h 36mIAD-YXU
6/12mié.
multi-stopAir Canada
5h 25mYXU-IAD
$955
6/4mar.
multi-stopAir Canada
5h 36mIAD-YXU
6/11mar.
multi-stopAir Canada
16h 23mYXU-IAD
$1,054
6/4mar.
multi-stopAir Canada
5h 36mIAD-YXU
6/7vie.
multi-stopAir Canada
5h 25mYXU-IAD
$1,085

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Washington Dulles Airport - London Flights

Departure:

Washington Dulles Airport (IAD)United States

Destination:

London (YXU)Canada

Return flight deals:

London - Washington Dulles Airport

Cabin classes: