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

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from London to Seattle/Tacoma Intl

(Round-trip)
Depart: Thu Apr 16 2015 Return: Sat Apr 25 2015 Trip spans 10 days
Icelandair
Icelandair
LGW
9:10a
SEA
9:45p
12h 35m
1 stop
SEA
12:30p
LGW
8:10a
19h 40m
1 stop
Depart: Sun Feb 15 2015 Return: Wed Mar 25 2015 Trip spans 38 days
United
United
LHR
5:30a
SEA
1:10a
19h 40m
1 stop
SEA
8:45a
LHR
12:30a
15h 45m
1 stop
Depart: Sat Mar 7 2015 Return: Sun Mar 22 2015 Trip spans 15 days
Delta
Delta
LHR
7:50a
SEA
9:56p
14h 06m
1 stop
SEA
1:58p
LHR
4:25a
14h 27m
1 stop
Depart: Tue Mar 10 2015 Return: Tue Mar 24 2015 Trip spans 15 days
Iberia
Iberia
LHR
2:30a
SEA
12:59a
22h 29m
2 stops
SEA
4:51a
LHR
9:40p
16h 49m
1 stop
Depart: Tue Feb 10 2015 Return: Tue Feb 24 2015 Trip spans 15 days
SAS
SAS
LHR
2:05a
SEA
12:22a
22h 17m
2 stops
SEA
1:45a
LHR
3:25a
25h 40m
2 stops
Depart: Thu Feb 12 2015 Return: Mon Mar 23 2015 Trip spans 39 days
US Airways
US Airways
LHR
6:40a
SEA
12:00a
17h 20m
1 stop
SEA
7:25a
LHR
11:30p
16h 05m
1 stop
Depart: Sun Feb 8 2015 Return: Tue Mar 10 2015 Trip spans 30 days
Multiple Airlines
Multiple Airlines
LHR
10:30a
SEA
12:35p
26h 05m
1 stop
SEA
5:00a
LHR
11:40p
18h 40m
1 stop
Depart: Wed Mar 25 2015 Return: Wed Apr 15 2015 Trip spans 22 days
Air France
Air France
LHR
3:10a
SEA
4:27p
13h 17m
1 stop
SEA
9:12a
LHR
10:30p
13h 18m
1 stop
Depart: Tue Feb 3 2015 Return: Mon Feb 9 2015 Trip spans 7 days
Lufthansa
Lufthansa
LHR
7:05a
SEA
11:20p
16h 15m
1 stop
SEA
9:01a
LHR
10:05p
13h 04m
1 stop
Depart: Thu Mar 26 2015 Return: Fri Apr 10 2015 Trip spans 16 days
Virgin Atlantic
Virgin Atlantic
LHR
9:00a
SEA
7:26p
10h 26m
nonstop
SEA
3:10p
LHR
1:00a
9h 50m
nonstop
Depart: Thu Apr 9 2015 Return: Wed Apr 15 2015 Trip spans 7 days
American Airlines
American Airlines
LHR
10:00a
SEA
3:57a
17h 57m
1 stop
SEA
3:00a
LHR
6:50p
15h 50m
1 stop
Depart: Thu Apr 2 2015 Return: Mon Apr 27 2015 Trip spans 26 days
$1049
Select
Air Canada
Air Canada
LHR
10:10a
SEA
10:30p
12h 20m
1 stop
SEA
5:25a
LHR
10:00p
16h 35m
2 stops
Depart: Sun Feb 22 2015 Return: Thu Feb 26 2015 Trip spans 5 days
$1086
Select
Air Europa
Air Europa
LGW
12:20p
SEA
12:42a
36h 22m
2 stops
SEA
2:00a
LGW
3:20a
25h 20m
2 stops
Depart: Wed Jun 24 2015 Return: Wed Jul 8 2015 Trip spans 15 days
$1401
Select
Icelandair
Icelandair
LHR
5:10p
SEA
9:45p
28h 35m
1 stop
SEA
12:30p
LHR
11:45p
11h 15m
1 stop
Change your search
Direct flights LON to SEA on Delta
Flight # Depart LHR Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
36 1:00 pm 3:24 pm Feb 1 - Feb 28
36 1:00 pm 4:26 pm Mar 8 - Mar 28
36 1:00 pm 3:26 pm Mar 1 - Mar 7
Airports
Origin

London
only $820
only $793
Destination

Seattle
$793