$217 Find Cheap Flights from London to Washington - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Washington departing on 8/11. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Washington, 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, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Flight Deals

Book Cheap London to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Washington 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

Thu, Jul 16 - Thu, Jul 23
WestJet Logo
5:55 pm - 6:45 pm
YXU
-
SEA
27h 50m
1 stop
WestJet Logo
7:00 am - 4:45 pm
SEA
-
YXU
6h 45m
1 stop
$396WestJet
Sat, Sep 5 - Mon, Sep 7
WestJet Logo
5:55 pm - 6:45 pm
YXU
-
SEA
27h 50m
1 stop
WestJet Logo
7:00 am - 4:45 pm
SEA
-
YXU
6h 45m
1 stop
$399WestJet
Fri, Jul 24 - Sat, Aug 1
WestJet Logo
8:40 pm - 9:00 pm
YXU
-
SEA
27h 20m
1 stop
WestJet Logo
7:35 pm - 5:20 am
SEA
-
YXU
6h 45m
1 stop
$403WestJet
Mon, Jul 27 - Mon, Aug 17
WestJet Logo
5:55 pm - 9:00 pm
YXU
-
SEA
30h 05m
1 stop
WestJet Logo
7:35 pm - 5:20 am
SEA
-
YXU
6h 45m
1 stop
$408WestJet
Tue, Jul 28 - Tue, Aug 4
WestJet Logo
6:10 am - 1:50 pm
YXU
-
PDX
10h 40m
1 stop
WestJet Logo
2:30 pm - 5:20 am
PDX
-
YXU
11h 50m
1 stop
$413WestJet
Fri, Oct 16 - Tue, Oct 20
Air Canada Logo
3:30 pm - 9:04 pm
YXU
-
SEA
8h 34m
1 stop
Air Canada Logo
5:40 am - 9:40 pm
SEA
-
YXU
13h 00m
2 stops
$482Air Canada
Fri, Oct 16 - Tue, Oct 20
Air Canada Logo
3:30 pm - 9:04 pm
YXU
-
SEA
8h 34m
1 stop
Air Canada Logo
5:40 am - 9:40 pm
SEA
-
YXU
13h 00m
2 stops
$483Air Canada
Fri, Oct 2 - Tue, Oct 6
Delta Logo
6:10 am - 1:50 pm
YXU
-
PDX
10h 40m
1 stop
Delta Logo
5:45 pm - 5:20 am
PDX
-
YXU
8h 35m
2 stops
$563Delta
Tue, Jul 28 - Tue, Aug 4
Multiple Airlines Logo
8:40 pm - 1:50 pm
YXU
-
PDX
20h 10m
1 stop
Multiple Airlines Logo
9:48 pm - 5:20 am
PDX
-
YXU
28h 32m
2 stops
$571Multiple Airlines
Tue, Sep 1 - Mon, Sep 7
Multiple Airlines Logo
8:40 pm - 1:50 pm
YXU
-
PDX
20h 10m
1 stop
Multiple Airlines Logo
9:46 pm - 5:20 am
PDX
-
YXU
28h 34m
2 stops
$577Multiple Airlines
Booking Insights

KAYAK's insights & trends for London to Washington flights

Get data-powered insights and trends into flights from London to Washington 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?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from London to Washington were found on WestJet ($403) and Air Canada ($483).

Find deals

Good to know

Cheapest flight$217
Flight from London to Seattle

FAQs - booking Washington flights

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

    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.

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

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

    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 from London to Washington with an airline and back with another airline.

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

    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 from London to Washington 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

Information on your arrival and departure airports

London (YXU)