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IAD - YXU

Find cheap flights from Washington, D.C. to London from C$ 914

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to London departing on 1/6. 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
søn. 19/5
søn. 26/5

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, travellers have searched 44,212,662 times on KAYAK, and here is why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to London 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.
Choose your dates
4:00 p.m. - 9:36 p.m.IAD-YXU
5h 36m1 stop
9:50 a.m. - 3:15 p.m.YXU-IAD
5h 25m1 stop
C$ 914Air Canada
Find Deal
lør., 1 juni - ons., 5 juni
4:00 p.m. - 9:36 p.m.IAD-YXU
5h 36m1 stop
9:50 a.m. - 3:15 p.m.YXU-IAD
5h 25m1 stop
C$ 945Air Canada
Find Deal
lør., 1 juni - ons., 5 juni
10:25 p.m. - 2:46 p.m.IAD-YXU
16h 21m2 stops
3:25 p.m. - 8:15 p.m.YXU-IAD
4h 50m1 stop
C$ 977
Find Deal
lør., 1 juni - ons., 5 juni
4:00 p.m. - 9:36 p.m.IAD-YXU
5h 36m1 stop
6:00 a.m. - 4:30 p.m.YXU-IAD
10h 30m2 stops
C$ 984Air Canada
Find Deal
lør., 1 juni - ons., 5 juni
10:15 p.m. - 2:46 p.m.IAD-YXU
16h 31m2 stops
3:25 p.m. - 12:47 a.m.YXU-IAD
9h 22m2 stops
C$ 1,029Air Canada
Find Deal
lør., 1 juni - ons., 5 juni
1:05 p.m. - 9:16 a.m.IAD-YXU
20h 11m2 stops
6:00 a.m. - 4:30 p.m.YXU-IAD
10h 30m2 stops
C$ 1,079Air Canada
Find Deal
lør., 1 juni - ons., 5 juni
1:05 p.m. - 9:36 p.m.IAD-YXU
8h 31m2 stops
9:50 a.m. - 3:15 p.m.YXU-IAD
5h 25m1 stop
C$ 1,132Air Canada
Find Deal
lør., 1 juni - ons., 5 juni
6:14 a.m. - 9:36 p.m.IAD-YXU
15h 22m2 stops
3:25 p.m. - 12:47 a.m.YXU-IAD
9h 22m2 stops
C$ 1,243
Find Deal
lør., 1 juni - ons., 5 juni

Good to know

Cheapest flight

C$ 914
Flight from Washington, D.C. to London

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

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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, D.C. 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 C$ 664 for a round-trip ticket.

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

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

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

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

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

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

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

  • What is the Hacker Fare option on flights from Washington, D.C. 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, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Washington, D.C. - London Flights

Departure:

Washington, D.C. (IAD)United States

Destination:

London (YXU)Canada

Return flight deals:

London - Washington, D.C.

Cabin classes:

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