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

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Washington Dulles Intl to London Airport

(Round-trip)
Depart: Thu Sep 21 2017 Return: Mon Sep 25 2017 Trip spans 5 days
Major Airline
Major Airline
IAD
1:00a
YXU
1:41a
0h 41m
1 stop
YXU
1:00a
IAD
1:41a
0h 41m
1 stop
Depart: Thu Oct 26 2017 Return: Mon Oct 30 2017 Trip spans 5 days
Air Canada
Air Canada
IAD
2:55a
YXU
8:47a
5h 52m
1 stop
YXU
5:15a
IAD
10:00a
4h 45m
1 stop
Depart: Thu Jul 6 2017 Return: Fri Jul 7 2017 Trip spans 2 days
Air Canada
Air Canada
IAD
12:20p
YXU
4:26p
4h 06m
1 stop
YXU
7:15a
IAD
11:49a
4h 34m
1 stop
Depart: Sun Jul 2 2017 Return: Mon Jul 3 2017 Trip spans 2 days
Air Canada
Air Canada
IAD
12:20p
YXU
4:26p
4h 06m
1 stop
YXU
2:15a
IAD
5:34a
3h 19m
1 stop
Depart: Tue Jun 27 2017 Return: Sat Jul 1 2017 Trip spans 5 days
Air Canada
Air Canada
IAD
12:20p
YXU
4:26p
4h 06m
1 stop
YXU
1:45p
IAD
5:54p
4h 09m
1 stop
Depart: Fri Jun 30 2017 Return: Fri Jul 7 2017 Trip spans 8 days
Air Canada
Air Canada
IAD
2:55a
YXU
8:46a
5h 51m
1 stop
YXU
7:15a
IAD
11:49a
4h 34m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Washington
$350
Destination

London
$350
Airlines