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Find Deals on Flights 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: Fri Dec 4 2015 Return: Mon Dec 7 2015 Trip spans 4 days
United
United
SEA
6:40p
LHR
5:50p
23h 10m
1 stop
LHR
1:30a
SEA
3:20p
13h 50m
1 stop
Depart: Fri Oct 23 2015 Return: Mon Oct 26 2015 Trip spans 4 days
United
United
SEA
7:59p
LHR
7:55p
23h 56m
1 stop
LHR
2:30a
SEA
4:20p
13h 50m
1 stop
Depart: Fri Oct 16 2015 Return: Sun Oct 18 2015 Trip spans 3 days
United
United
SEA
8:45a
LHR
11:40p
14h 55m
1 stop
LHR
2:30a
SEA
3:30p
13h 00m
1 stop
Depart: Sun Oct 25 2015 Return: Tue Nov 3 2015 Trip spans 10 days
United
United
SEA
8:35a
LHR
12:50a
16h 15m
1 stop
LHR
9:25a
SEA
9:31p
12h 06m
1 stop
Depart: Tue Oct 27 2015 Return: Tue Nov 3 2015 Trip spans 8 days
United
United
SEA
12:10p
LHR
12:50a
12h 40m
1 stop
LHR
9:25a
SEA
9:31p
12h 06m
1 stop
Depart: Thu Oct 29 2015 Return: Thu Nov 5 2015 Trip spans 8 days
United
United
SEA
8:35a
LHR
12:50a
16h 15m
1 stop
LHR
9:25a
SEA
9:31p
12h 06m
1 stop
Depart: Wed Nov 4 2015 Return: Tue Dec 8 2015 Trip spans 35 days
United
United
SEA
11:10a
LHR
10:15p
11h 05m
1 stop
LHR
9:25a
SEA
9:29p
12h 04m
1 stop
Depart: Wed Nov 18 2015 Return: Tue Dec 1 2015 Trip spans 14 days
United
United
SEA
7:35a
LHR
10:15p
14h 40m
1 stop
LHR
9:25a
SEA
9:29p
12h 04m
1 stop
Depart: Thu Nov 19 2015 Return: Tue Dec 1 2015 Trip spans 13 days
United
United
SEA
11:10a
LHR
10:15p
11h 05m
1 stop
LHR
9:25a
SEA
9:29p
12h 04m
1 stop
Depart: Thu Nov 26 2015 Return: Thu Dec 3 2015 Trip spans 8 days
United
United
SEA
4:25a
LHR
10:15p
17h 50m
1 stop
LHR
9:25a
SEA
9:29p
12h 04m
1 stop
Depart: Wed Dec 2 2015 Return: Mon Dec 7 2015 Trip spans 6 days
United
United
SEA
7:35a
LHR
10:15p
14h 40m
1 stop
LHR
9:25a
SEA
9:29p
12h 04m
1 stop
Depart: Thu Dec 3 2015 Return: Mon Dec 7 2015 Trip spans 5 days
United
United
SEA
7:35a
LHR
10:15p
14h 40m
1 stop
LHR
9:25a
SEA
9:29p
12h 04m
1 stop
Depart: Mon Nov 2 2015 Return: Mon Nov 16 2015 Trip spans 15 days
Air Canada
Air Canada
SEA
11:10a
LHR
10:15p
11h 05m
1 stop
LHR
9:25a
SEA
9:31p
12h 06m
1 stop
Depart: Sat Nov 14 2015 Return: Mon Nov 16 2015 Trip spans 3 days
Lufthansa
Lufthansa
SEA
4:25a
LHR
10:15p
17h 50m
1 stop
LHR
1:30a
SEA
6:45p
17h 15m
2 stops
Depart: Sat Jan 9 2016 Return: Sun Jan 17 2016 Trip spans 9 days
Icelandair
Icelandair
SEA
10:30a
LGW
10:15p
11h 45m
1 stop
LGW
7:30a
SEA
7:40p
12h 10m
1 stop
Depart: Tue Nov 10 2015 Return: Tue Nov 24 2015 Trip spans 15 days
Icelandair
Icelandair
SEA
10:30a
LHR
6:30a
20h 00m
1 stop
LHR
8:00a
SEA
7:40p
11h 40m
1 stop
Depart: Mon Oct 26 2015 Return: Mon Nov 9 2015 Trip spans 15 days
Finnair
Finnair
SEA
3:00p
LHR
12:30a
9h 30m
nonstop
LHR
4:20a
SEA
2:05p
9h 45m
nonstop
Depart: Fri Oct 30 2015 Return: Wed Nov 11 2015 Trip spans 13 days
$1021
Select
British Airways
British Airways
SEA
11:05a
LHR
8:30p
9h 25m
nonstop
LHR
9:15a
SEA
7:05p
9h 50m
nonstop
Depart: Sun Oct 4 2015 Return: Mon Oct 26 2015 Trip spans 23 days
$1048
Select
American Airlines
American Airlines
SEA
3:15p
LHR
12:30a
9h 15m
nonstop
LHR
5:20a
SEA
3:05p
9h 45m
nonstop
Depart: Fri Jul 10 2015 Return: Tue Sep 1 2015 Trip spans 54 days
$1735
Select
Air Europa
Air Europa
SEA
7:15a
LGW
4:15a
21h 00m
2 stops
LGW
6:10a
SEA
11:53p
41h 43m
2 stops
Direct flights SEA to LON on Delta
Flight # Depart SEA Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
37 7:20 pm 1:00 pm Jun 30 - Aug 31
Airports
Origin

Seattle
$807
Destination

London
only $807
only $936