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Find flight deals from Seattle/Tacoma Intl to London (SEA - LON)

Flexible dates? Here are the best fares found in the past 48 hours...

Book cheap flights from Seattle/Tacoma Intl to London

(Round-trip)
Depart: Thu 12 Mar 2015 Return: Sun 22 Mar 2015 Trip spans 11 days
Icelandair
Icelandair
SEA
12:30
LGW
00:15
11h 45m
1 stop
LGW
08:30
SEA
20:40
12h 10m
1 stop
Depart: Sat 7 Mar 2015 Return: Thu 19 Mar 2015 Trip spans 12 days
Icelandair
Icelandair
SEA
10:30
LGW
07:45
20h 15m
1 stop
LGW
08:30
SEA
20:40
12h 10m
1 stop
Depart: Thu 19 Mar 2015 Return: Sun 5 Apr 2015 Trip spans 18 days
Icelandair
Icelandair
SEA
12:30
LGW
00:15
11h 45m
1 stop
LGW
17:10
SEA
21:45
28h 35m
1 stop
Depart: Wed 4 Mar 2015 Return: Mon 16 Mar 2015 Trip spans 12 days
Icelandair
Icelandair
SEA
10:30
LGW
22:15
11h 45m
1 stop
LGW
08:30
SEA
20:40
12h 10m
1 stop
Depart: Thu 5 Mar 2015 Return: Mon 16 Mar 2015 Trip spans 11 days
Icelandair
Icelandair
SEA
10:30
LGW
22:15
11h 45m
1 stop
LGW
08:30
SEA
20:40
12h 10m
1 stop
Depart: Fri 6 Mar 2015 Return: Mon 16 Mar 2015 Trip spans 10 days
Icelandair
Icelandair
SEA
10:30
LGW
22:15
11h 45m
1 stop
LGW
08:30
SEA
20:40
12h 10m
1 stop
Depart: Sun 8 Mar 2015 Return: Mon 16 Mar 2015 Trip spans 9 days
Icelandair
Icelandair
SEA
12:30
LGW
00:15
11h 45m
1 stop
LGW
08:30
SEA
20:40
12h 10m
1 stop
Depart: Mon 9 Mar 2015 Return: Mon 16 Mar 2015 Trip spans 8 days
Icelandair
Icelandair
SEA
12:30
LGW
00:15
11h 45m
1 stop
LGW
08:30
SEA
20:40
12h 10m
1 stop
Depart: Fri 13 Mar 2015 Return: Thu 19 Mar 2015 Trip spans 7 days
Icelandair
Icelandair
SEA
12:30
LGW
00:15
11h 45m
1 stop
LGW
08:30
SEA
20:40
12h 10m
1 stop
Depart: Mon 16 Mar 2015 Return: Mon 6 Apr 2015 Trip spans 22 days
Icelandair
Icelandair
SEA
12:30
LGW
00:15
11h 45m
1 stop
LGW
09:10
SEA
21:45
12h 35m
1 stop
Depart: Wed 18 Mar 2015 Return: Mon 6 Apr 2015 Trip spans 20 days
Icelandair
Icelandair
SEA
12:30
LGW
00:15
11h 45m
1 stop
LGW
09:10
SEA
21:45
12h 35m
1 stop
Depart: Fri 20 Mar 2015 Return: Mon 6 Apr 2015 Trip spans 18 days
Icelandair
Icelandair
SEA
12:30
LGW
00:15
11h 45m
1 stop
LGW
09:10
SEA
21:45
12h 35m
1 stop
Depart: Sat 21 Mar 2015 Return: Mon 6 Apr 2015 Trip spans 17 days
Icelandair
Icelandair
SEA
12:30
LGW
08:45
20h 15m
1 stop
LGW
09:10
SEA
21:45
12h 35m
1 stop
Depart: Sun 22 Mar 2015 Return: Mon 6 Apr 2015 Trip spans 16 days
Icelandair
Icelandair
SEA
12:30
LGW
00:15
11h 45m
1 stop
LGW
09:10
SEA
21:45
12h 35m
1 stop
Depart: Wed 1 Apr 2015 Return: Sun 19 Apr 2015 Trip spans 19 days
Icelandair
Icelandair
SEA
12:30
LHR
23:45
11h 15m
1 stop
LHR
09:00
SEA
21:45
12h 45m
1 stop
Depart: Mon 15 Dec 2014 Return: Wed 31 Dec 2014 Trip spans 17 days
United
United
SEA
04:58
LHR
22:30
17h 32m
2 stops
LHR
05:30
SEA
03:58
22h 28m
2 stops
Depart: Wed 20 May 2015 Return: Fri 19 Jun 2015 Trip spans 31 days
Multiple Airlines
Multiple Airlines
SEA
10:00
LHR
00:40
14h 40m
1 stop
LHR
03:30
SEA
20:20
16h 50m
2 stops
Depart: Wed 24 Dec 2014 Return: Wed 31 Dec 2014 Trip spans 8 days
US Airways
US Airways
SEA
20:00
LHR
17:30
21h 30m
1 stop
LHR
07:05
SEA
00:15
17h 10m
1 stop
Depart: Mon 8 Dec 2014 Return: Sat 13 Dec 2014 Trip spans 6 days
Brussels Airlines
Brussels Airlines
SEA
02:04
LHR
08:10
30h 06m
2 stops
LHR
06:15
SEA
23:25
41h 10m
2 stops
Depart: Tue 3 Mar 2015 Return: Mon 16 Mar 2015 Trip spans 13 days
EVA Air
EVA Air
SEA
20:00
LHR
06:10
34h 10m
2 stops
LHR
17:20
SEA
22:10
28h 50m
2 stops
Change your search
Direct flights SEA - LON on British Airways
Flight No. Departure SEA Arrival LHR Mon Tue Wed Thu Fri Sat Sun Valid between
52 14:05 07:30 12 Dec - 21 Dec
52 14:05 07:30 8 Dec - 15 Dec
52 14:05 07:30 1 Dec - 7 Dec
52 14:05 07:30 28 Dec - 4 Jan
48 18:00 11:30 28 Dec - 5 Mar
48 18:00 11:30 25 Nov - 24 Dec
48 18:05 11:35 28 Nov - 7 Mar
Airports
Origin

Seattle
£626
Destination

London
only £660
only £626