Find Deals on Flights from Seattle/Tacoma Intl to London Airport (SEA - YXU)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Seattle/Tacoma Intl to London Airport

(Round-trip)
Depart: Tue Feb 14 2017 Return: Sat Feb 18 2017 Trip spans 5 days
Major Airline
Major Airline
SEA
9:00a
YXU
10:01a
25h 01m
2 stops
YXU
5:05a
SEA
1:46a
20h 41m
2 stops
Depart: Sat Feb 18 2017 Return: Sun Feb 26 2017 Trip spans 9 days
Delta
Delta
SEA
6:54p
YXU
6:31a
11h 37m
2 stops
YXU
10:05a
SEA
8:49a
22h 44m
2 stops
Depart: Sat Jan 21 2017 Return: Mon Jan 23 2017 Trip spans 3 days
WestJet
WestJet
SEA
4:30a
YXU
11:59a
31h 29m
2 stops
YXU
1:45a
SEA
2:20p
12h 35m
2 stops
* 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.

We compile tonnes of data for you
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.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Seattle
$541
Destination

London
$541