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

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 London to Seattle/Tacoma Intl

(Round-trip)
Depart: Thu Apr 21 2016 Return: Mon Apr 25 2016 Trip spans 5 days
Icelandair
Icelandair
LGW
SEA
12h 35m
1 stop
SEA
LGW
11h 15m
1 stop
Depart: Sat Apr 30 2016 Return: Thu May 5 2016 Trip spans 6 days
Icelandair
Icelandair
LHR
SEA
28h 35m
1 stop
SEA
LHR
11h 45m
1 stop
Depart: Wed Jun 8 2016 Return: Sat Jun 18 2016 Trip spans 11 days
WestJet
WestJet
LGW
SEA
18h 09m
2 stops
SEA
LGW
30h 40m
1 stop
Depart: Mon Mar 14 2016 Return: Mon Mar 21 2016 Trip spans 8 days
KLM
KLM
LCY
SEA
18h 50m
2 stops
SEA
LCY
18h 04m
1 stop
Depart: Fri Mar 4 2016 Return: Thu Mar 24 2016 Trip spans 20 days
Air Canada
Air Canada
LHR
SEA
12h 41m
1 stop
SEA
LHR
15h 55m
1 stop
Depart: Wed Mar 2 2016 Return: Sun Mar 6 2016 Trip spans 5 days
Aer Lingus
Aer Lingus
LGW
SEA
33h 57m
2 stops
SEA
LGW
24h 45m
2 stops
Depart: Mon Jun 13 2016 Return: Thu Jul 14 2016 Trip spans 32 days
Major Airline
Major Airline
LHR
SEA
13h 35m
1 stop
SEA
LHR
12h 40m
1 stop
Depart: Wed Jun 15 2016 Return: Wed Jun 29 2016 Trip spans 15 days
$1035
Select
Lufthansa
Lufthansa
LCY
SEA
24h 50m
1 stop
SEA
LCY
18h 20m
1 stop
Depart: Thu Jun 2 2016 Return: Fri Jun 10 2016 Trip spans 9 days
$1126
Select
American Airlines
American Airlines
LHR
SEA
9h 35m
nonstop
SEA
LHR
15h 45m
1 stop
Depart: Fri Apr 8 2016 Return: Mon May 2 2016 Trip spans 25 days
$1240
Select
Finnair
Finnair
LHR
SEA
9h 35m
nonstop
SEA
LHR
9h 20m
nonstop
Depart: Sat Apr 2 2016 Return: Sat May 7 2016 Trip spans 36 days
$1331
Select
Iberia
Iberia
LHR
SEA
9h 35m
nonstop
SEA
LHR
9h 20m
nonstop
Depart: Thu Feb 11 2016 Return: Tue Feb 16 2016 Trip spans 6 days
$14226
Select
Iberia
Iberia
LCY
SEA
19h 57m
2 stops
SEA
LCY
15h 15m
1 stop
Direct flights LON to SEA on Delta
Flight # Depart LHR Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
36 12:55 pm 4:20 pm Mar 13 - Mar 25
36 12:55 pm 3:20 pm Mar 1 - Mar 12
36 12:55 pm 3:20 pm Feb 13 - Feb 13
36 12:55 pm 3:20 pm Feb 11 - Feb 17
36 12:55 pm 3:20 pm Feb 19 - Feb 29
36 3:00 pm 5:25 pm Feb 25 - Feb 25
36 3:00 pm 5:25 pm Feb 20 - Feb 27
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

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We’re not the seller
At KAYAK we don’t set 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 don'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

London
only $693
only $767
only $674
Destination

Seattle
$674