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YXU - WAS

C$ 724 Find cheap flights from London, Ontario to Washington, D.C.

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Washington, D.C. departing on 17/8. 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
Fri 21/6
Fri 28/6

Search hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Washington, D.C., 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 London to Washington, D.C., as well as popular online travel agencies
In the last 7 days, travellers have searched 43,423,329 times on KAYAK, and here is why:

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Cheap flight deals from London to Washington, D.C. (YXU-WAS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
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9:50 a.m. - 3:19 p.m.YXU-IAD
5h 29m1 stop
9:55 a.m. - 5:45 p.m.IAD-YXU
7h 50m2 stops
C$ 724Air Canada
Find Deal
Sat, 17 Aug - Sat, 24 Aug
6:00 a.m. - 12:20 p.m.YXU-DCA
6h 20m2 stops
9:15 a.m. - 2:45 p.m.DCA-YXU
5h 30m1 stop
C$ 727Air Canada
Find Deal
Thu, 1 Aug - Sat, 10 Aug
9:50 a.m. - 3:19 p.m.YXU-IAD
5h 29m1 stop
4:00 p.m. - 9:35 p.m.IAD-YXU
5h 35m1 stop
C$ 728Air Canada
Find Deal
Thu, 1 Aug - Sat, 10 Aug
9:50 a.m. - 3:19 p.m.YXU-IAD
5h 29m1 stop
4:00 p.m. - 9:35 p.m.IAD-YXU
5h 35m1 stop
C$ 731Air Canada
Find Deal
Sat, 17 Aug - Sat, 24 Aug
6:20 p.m. - 10:35 p.m.YXU-DCA
4h 15m1 stop
9:15 a.m. - 2:45 p.m.DCA-YXU
5h 30m1 stop
C$ 734Air Canada
Find Deal
Thu, 1 Aug - Sat, 10 Aug
6:00 a.m. - 1:21 p.m.YXU-DCA
7h 21m2 stops
6:00 a.m. - 2:45 p.m.DCA-YXU
8h 45m2 stops
C$ 749
Find Deal
Thu, 1 Aug - Sat, 10 Aug
3:20 p.m. - 8:19 p.m.YXU-IAD
4h 59m1 stop
4:00 p.m. - 9:35 p.m.IAD-YXU
5h 35m1 stop
C$ 749
Find Deal
Thu, 4 Jul - Thu, 11 Jul
3:20 p.m. - 8:19 p.m.YXU-IAD
4h 59m1 stop
6:00 a.m. - 2:45 p.m.IAD-YXU
8h 45m2 stops
C$ 801United Airlines
Find Deal
Thu, 4 Jul - Thu, 11 Jul
3:25 p.m. - 9:16 p.m.YXU-IAD
5h 51m1 stop
10:15 p.m. - 2:45 p.m.IAD-YXU
16h 30m2 stops
C$ 840United Airlines
Find Deal
Fri, 14 Jun - Mon, 17 Jun
6:15 a.m. - 10:33 p.m.YXU-DCA
16h 18m2 stops
6:00 a.m. - 6:59 p.m.DCA-YXU
12h 59m2 stops
C$ 1,740WestJet
Find Deal
Thu, 4 Jul - Thu, 11 Jul

Good to know

Low season

March

High season

October

Cheapest flight

C$ 724
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.
Flight from London to Washington Dulles Airport

When to book flights from London to Washington, D.C.

Are your dates flexible? Find out the best times to travel from London to Washington, D.C. 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 flights from London to Washington, D.C.

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

    In the last 3 days, the lowest price for a flight from London, Ontario to Washington, D.C. was C$ 531 for a round-trip ticket.

  • Which airports will I be using when flying from London to Washington, D.C.?

    On your way to Washington, D.C., you’ll fly out from London. You’ll be landing in one of Washington, D.C.’s 2 airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from London to Washington, D.C.?

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

  • Which airline alliances offer flights from London to Washington, D.C.?

    Star Alliance is the only airline alliance operating flights between London and Washington, D.C..

  • How does KAYAK find such low prices on flights from London to Washington, D.C.?

    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 London to Washington, D.C..

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from London 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 London to Washington, D.C.?

    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 Washington, D.C. with an airline and back to London with another airline.

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

    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 Washington, D.C. from London 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 London to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from London to Washington, D.C.. 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 London to Washington, D.C.? 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 6951 reviews
7.0Comfort
7.2Boarding
6.8Entertainment
7.8Crew
6.2Food
Airline reviews

The terminal this flight boarded from was so far away, poorly temperature controlled, and generally uncomfortable. The plane was small but the flight was short, so it wasn't so bad.

6.0 GoodAnonymous, May 2024YYZ - PHL
Read more about Air Canada reviews

The terminal this flight boarded from was so far away, poorly temperature controlled, and generally uncomfortable. The plane was small but the flight was short, so it wasn't so bad.

Seriously need to improve the time schedule and the plans

Great TV, easy boarding, wonderful ground crew and flight crew.

Rude Customer Service at checkin, 90 minute limit in flight check in is too strict. I was in line for 30 minutes because of slow/insufficient workers. Somewhere I got to the the counter of course the employee warned me about the 90 minutes. People were cutting the lines. No one did anything.

Everything was great. I really like how they had their safety film set up showing you the beauty of the country.

I liked the early check in. Flight was a bit bumpy due yo weather. Overall, everything went well.

Limited snack options cause the snack vendor was on strike

It was an excellent experience, traveling from Toronto to Denver with United.

Ontime boarding. Almost 1 hour take off delay. We could have boarded slightly later since the pilots were in traffic

This was the first AC flight in a long time that we experienced no delays or frustrations. The gate attendant was extremely polite and accommodating to my husband who has Parkinson’s disease which made boarding extremely stress free. Flight departed ON TIME and was a smooth ride. If only all my AC experiences could be like this.

London - Washington, D.C. Flights

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