YXU - IAD

$612 Find Cheap Flights from London to Washington Dulles Airport

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 8/16. 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
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
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
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Flights Deals

Cheap Flights from London to Dulles Intl (YXU-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Dulles Intl 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Washington, D.C.

Sat, Aug 16 - Sat, Aug 23
Air Canada Logo
9:55 am - 1:42 pmYXU-IAD
3h 47m1 stop
Air Canada Logo
10:20 am - 3:02 pmIAD-YXU
4h 42m1 stop
$612Air Canada
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Sat, Aug 16 - Sat, Aug 23
Logo
6:00 am - 10:14 amYXU-IAD
28h 14m3 stops
Logo
9:45 am - 5:14 amIAD-YXU
19h 29m3 stops
$676
Find Deal
Sat, Aug 16 - Sat, Aug 23
Logo
6:00 am - 10:14 amYXU-IAD
28h 14m3 stops
Logo
9:45 am - 9:27 pmIAD-YXU
11h 42m2 stops
$687
Find Deal
Sat, Aug 16 - Sat, Aug 23
Logo
9:55 am - 1:42 pmYXU-IAD
3h 47m1 stop
Logo
9:45 am - 5:14 amIAD-YXU
19h 29m3 stops
$698
Find Deal
Sat, Aug 16 - Sat, Aug 23
United Airlines Logo
9:55 am - 1:42 pmYXU-IAD
3h 47m1 stop
United Airlines Logo
10:20 am - 3:02 pmIAD-YXU
4h 42m1 stop
$700United Airlines
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Sat, Aug 16 - Sat, Aug 23
United Airlines Logo
6:15 am - 1:49 pmYXU-IAD
7h 34m2 stops
United Airlines Logo
6:35 am - 3:02 pmIAD-YXU
8h 27m2 stops
$706United Airlines
Find Deal
Sat, Aug 16 - Sat, Aug 23
Logo
6:00 am - 10:14 amYXU-IAD
28h 14m3 stops
Logo
9:45 am - 5:07 pmIAD-YXU
7h 22m2 stops
$732
Find Deal
Useful Info

KAYAK's insights & trends for London to Washington, D.C. flights

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

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

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from London to Washington Dulles Airport were found on Air Canada ($612) and United Airlines ($700).

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Good to know

Cheapest flight$612
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 London to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from London to Washington, D.C. Dulles Intl Airport was $612 for a round-trip ticket.

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

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

  • Which airports will I be using when flying from London to Washington Dulles Airport?

    When flying out of London you will be using London. You will be landing at Washington Dulles Airport, also known as Washington, D.C. Dulles Intl.

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

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

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

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

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

    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 Dulles Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport 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 Dulles Airport?

    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 Dulles Airport with an airline and back to London with another airline. Booking your flights between London and IAD 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 London to Washington Dulles Airport?

    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 Dulles Airport from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from London to Washington, D.C.

Information on your arrival and departure airports

London (YXU)
Dulles Intl (IAD)

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