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

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

Book cheap flights from Seattle/Tacoma Intl to London

(Round-trip)
Depart: Wed Sep 30 2015 Return: Sun Oct 11 2015 Trip spans 12 days
Multiple Airlines
Multiple Airlines
SEA
12:30p
LTN
2:10a
13h 40m
1 stop
LTN
3:35a
SEA
9:45p
18h 10m
1 stop
Depart: Tue Mar 24 2015 Return: Tue Apr 28 2015 Trip spans 36 days
Delta
Delta
SEA
1:48p
LHR
4:25a
14h 37m
1 stop
LHR
9:00a
SEA
2:40a
17h 40m
1 stop
Depart: Tue Mar 17 2015 Return: Tue Apr 28 2015 Trip spans 43 days
United
United
SEA
8:11a
LHR
12:30a
16h 19m
2 stops
LHR
6:35a
SEA
12:06a
17h 31m
2 stops
Depart: Tue Sep 29 2015 Return: Thu Nov 12 2015 Trip spans 45 days
Icelandair
Icelandair
SEA
12:15p
LHR
8:10a
19h 55m
1 stop
LHR
8:00a
SEA
7:40p
11h 40m
1 stop
Depart: Wed Sep 23 2015 Return: Thu Oct 8 2015 Trip spans 16 days
$1013
Select
Icelandair
Icelandair
SEA
12:30p
LGW
11:45p
11h 15m
1 stop
LGW
9:10a
SEA
9:45p
12h 35m
1 stop
Depart: Sat Mar 14 2015 Return: Tue Mar 17 2015 Trip spans 4 days
$1031
Select
American Airlines
American Airlines
SEA
2:30a
LHR
2:15a
23h 45m
1 stop
LHR
8:00a
SEA
1:20a
17h 20m
1 stop
Depart: Wed May 6 2015 Return: Mon May 11 2015 Trip spans 6 days
$1074
Select
Aer Lingus
Aer Lingus
SEA
6:56a
LGW
12:10a
17h 14m
2 stops
LGW
5:10p
SEA
1:58a
32h 48m
2 stops
Depart: Fri Mar 6 2015 Return: Fri Mar 20 2015 Trip spans 14 days
$1112
Select
Major Airline
Major Airline
SEA
2:00a
LHR
7:00p
17h 00m
1 stop
LHR
1:00p
SEA
2:00a
37h 00m
1 stop
Depart: Sun Sep 27 2015 Return: Tue Oct 20 2015 Trip spans 24 days
$1115
Select
Multiple Airlines
Multiple Airlines
SEA
12:30p
LGW
8:10a
19h 40m
2 stops
LGW
2:20a
SEA
9:45p
19h 25m
2 stops
Depart: Sat May 2 2015 Return: Sun May 17 2015 Trip spans 16 days
$1132
Select
Air Canada
Air Canada
SEA
12:15p
LHR
11:40p
11h 25m
1 stop
LHR
6:05a
SEA
7:46p
13h 41m
1 stop
Depart: Fri Apr 24 2015 Return: Tue May 5 2015 Trip spans 12 days
$1158
Select
Multiple Airlines
Multiple Airlines
SEA
8:10a
LHR
11:25p
15h 15m
1 stop
LHR
12:15p
SEA
12:45p
24h 30m
1 stop
Depart: Fri Jul 24 2015 Return: Fri Aug 21 2015 Trip spans 29 days
$1250
Select
Lufthansa
Lufthansa
SEA
12:15p
LHR
11:40p
11h 25m
1 stop
LHR
2:50a
SEA
3:09a
24h 19m
2 stops
Depart: Sat Sep 26 2015 Return: Tue Oct 13 2015 Trip spans 18 days
$1270
Select
US Airways
US Airways
SEA
2:40a
LHR
9:00p
18h 20m
1 stop
LHR
6:15a
SEA
1:13a
18h 58m
1 stop
Change your search
Direct flights SEA to LON on Delta
Flight # Depart SEA Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
37 6:32 pm 11:05 am Mar 18 - Mar 18
37 7:10 pm 1:00 pm Mar 28 - Mar 28
37 7:10 pm 1:00 pm Apr 1 - Apr 30
37 7:16 pm 1:00 pm Mar 29 - Mar 31
37 7:52 pm 12:25 pm Mar 19 - Mar 27
37 7:52 pm 12:25 pm Mar 8 - Mar 17
Airports
Origin

Seattle
$921
Destination

London
only $921
only $923
only $1013