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IAD - YXU

$667 Find cheap flights from Washington Dulles Airport to London

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to London departing on 7/6. 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
Sun 6/16
Sun 6/23

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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 42,332,103 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
Sat, Jul 6 - Wed, Jul 10
4:00 pm - 9:35 pmIAD-YXU
5h 35m1 stop
9:50 am - 3:19 pmYXU-IAD
5h 29m1 stop
$689Air Canada
Find Deal
Mon, Jul 15 - Sun, Jul 21
4:00 pm - 9:35 pmIAD-YXU
5h 35m1 stop
9:50 am - 3:19 pmYXU-IAD
5h 29m1 stop
$690Air Canada
Find Deal
Sat, Aug 24 - Tue, Aug 27
10:15 pm - 9:15 amIAD-YXU
11h 00m1 stop
3:20 pm - 8:19 pmYXU-IAD
4h 59m1 stop
$691Air Canada
Find Deal
Sat, Jul 6 - Wed, Jul 10
9:55 am - 5:45 pmIAD-YXU
7h 50m2 stops
3:20 pm - 9:21 pmYXU-IAD
6h 01m1 stop
$695Air Canada
Find Deal
Sat, Aug 24 - Tue, Aug 27
9:55 am - 5:45 pmIAD-YXU
7h 50m2 stops
9:50 am - 3:19 pmYXU-IAD
5h 29m1 stop
$696Air Canada
Find Deal
Sat, Aug 24 - Tue, Aug 27
9:55 am - 5:45 pmIAD-YXU
7h 50m2 stops
9:50 am - 5:25 pmYXU-IAD
7h 35m2 stops
$700Air Canada
Find Deal
Sat, Aug 24 - Tue, Aug 27
9:55 am - 5:45 pmIAD-YXU
7h 50m2 stops
9:50 am - 8:29 pmYXU-IAD
10h 39m2 stops
$701Air Canada
Find Deal
Sat, Aug 24 - Tue, Aug 27
10:25 pm - 2:45 pmIAD-YXU
16h 20m2 stops
3:20 pm - 8:19 pmYXU-IAD
4h 59m1 stop
$737
Find Deal
Sat, Jul 6 - Wed, Jul 10
6:45 pm - 5:18 amIAD-YXU
10h 33m1 stop
6:15 am - 5:46 pmYXU-IAD
11h 31m1 stop
$1,278WestJet
Find Deal
Fri, Aug 16 - Mon, Aug 19

Good to know

Cheapest flight

$667
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 $667 for a round-trip ticket.

  • 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 6945 reviews
7.8Crew
7.2Boarding
6.2Food
6.8Entertainment
7.0Comfort
Airline reviews

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.

8.0 ExcellentAnonymous, May 2024MIA - YYZ
Read more about Air Canada reviews

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.

I had written all my complaints on my trip from Grand Junction to Denver so I will repeat it here! I was absolutely appalled that I had to pay for a regular seat that I choose 24 hrs before boarding! Also I checked my large bag which I had to pay for as well, and by the time I boarded all the room in the bins were gone so also had to check that one. I noticed people pulling out oversized suitcases, bigger than the measurements stated for carry on, and also large pack packs stuffed full! So these people were taking up 2 or 3 spaces that the rest of us should have been able to use but couldn’t! NoTV on the flight! Thankfully I had downloaded the United Airlines app and was able to watch movies on my phone. Don’t remember the last time I flew in a plane with no movie screens!

The crew was friendly, the seats are too small. Air travel is barely tolerable anymore.

Food was icecold or frozen including breakfast. Hopeless service. Rude crew.

The flight was very uncomfortable and there was no snacks served for the 13 hours international flight. In addition, the flight was delayed 3 hours

Due to a strike taking place with the airline, it negatively impacted my flight in multiple ways. My flight was delayed over 2 hours and the food served was mediocre at best.

Washington Dulles Airport - London Flights

Departure:

Washington Dulles Airport (undefined)United States

Destination:

London (YXU)Canada

Return flight deals:

London - Washington Dulles Airport

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