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

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

Book cheap flights from Seattle to London

(Round-trip)
Depart: Thu, 11 Dec, 2014 Return: Wed, 31 Dec, 2014 Trip spans 21 days
United
United
SEA
08:33
LHR
22:30
13h 57m
2 stops
LHR
05:30
SEA
03:58
22h 28m
2 stops
Depart: Mon, 15 Dec, 2014 Return: Wed, 31 Dec, 2014 Trip spans 17 days
United
United
SEA
03:45
LHR
22:30
18h 45m
2 stops
LHR
05:30
SEA
03:58
22h 28m
2 stops
Depart: Sun, 14 Dec, 2014 Return: Wed, 31 Dec, 2014 Trip spans 18 days
United
United
SEA
08:33
LHR
22:30
13h 57m
2 stops
LHR
05:30
SEA
03:58
22h 28m
2 stops
Depart: Sat, 13 Dec, 2014 Return: Wed, 31 Dec, 2014 Trip spans 19 days
United
United
SEA
05:03
LHR
22:30
17h 27m
2 stops
LHR
05:30
SEA
03:58
22h 28m
2 stops
Depart: Fri, 12 Dec, 2014 Return: Wed, 31 Dec, 2014 Trip spans 20 days
United
United
SEA
08:33
LHR
22:30
13h 57m
2 stops
LHR
05:30
SEA
03:58
22h 28m
2 stops
Depart: Wed, 26 Nov, 2014 Return: Sun, 30 Nov, 2014 Trip spans 5 days
Icelandair
Icelandair
SEA
10:30
LGW
22:15
11h 45m
1 stop
LGW
15:55
SEA
19:40
27h 45m
1 stop
Depart: Tue, 16 Dec, 2014 Return: Tue, 6 Jan, 2015 Trip spans 22 days
United
United
SEA
04:52
LHR
22:30
17h 38m
1 stop
LHR
07:35
SEA
00:16
16h 41m
1 stop
Depart: Wed, 17 Dec, 2014 Return: Tue, 6 Jan, 2015 Trip spans 21 days
United
United
SEA
04:58
LHR
22:30
17h 32m
1 stop
LHR
05:25
SEA
00:16
18h 51m
1 stop
Depart: Mon, 10 Nov, 2014 Return: Sat, 15 Nov, 2014 Trip spans 6 days
Brussels Airlines
Brussels Airlines
SEA
02:05
LHR
04:05
26h 00m
2 stops
LHR
06:15
SEA
23:51
41h 36m
2 stops
Depart: Tue, 11 Nov, 2014 Return: Sat, 15 Nov, 2014 Trip spans 5 days
Brussels Airlines
Brussels Airlines
SEA
02:05
LHR
08:10
30h 05m
2 stops
LHR
06:15
SEA
23:51
41h 36m
2 stops
Depart: Wed, 12 Nov, 2014 Return: Sat, 15 Nov, 2014 Trip spans 4 days
Brussels Airlines
Brussels Airlines
SEA
02:05
LHR
08:10
30h 05m
2 stops
LHR
06:15
SEA
23:51
41h 36m
2 stops
Depart: Sat, 20 Dec, 2014 Return: Sat, 27 Dec, 2014 Trip spans 8 days
Delta
Delta
SEA
02:05
LHR
17:50
15h 45m
1 stop
LHR
07:50
SEA
22:24
14h 34m
1 stop
Depart: Fri, 19 Dec, 2014 Return: Sat, 27 Dec, 2014 Trip spans 9 days
American Airlines
American Airlines
SEA
19:20
LHR
09:40
14h 20m
1 stop
LHR
07:05
SEA
00:15
17h 10m
1 stop
Depart: Thu, 27 Nov, 2014 Return: Fri, 28 Nov, 2014 Trip spans 2 days
Brussels Airlines
Brussels Airlines
SEA
02:05
LHR
21:05
19h 00m
2 stops
LHR
12:50
SEA
21:33
32h 43m
2 stops
Depart: Tue, 25 Nov, 2014 Return: Sun, 30 Nov, 2014 Trip spans 6 days
Multiple Airlines
Multiple Airlines
SEA
20:00
LHR
06:10
34h 10m
1 stop
LHR
08:00
SEA
19:40
11h 40m
1 stop
Depart: Wed, 10 Dec, 2014 Return: Mon, 5 Jan, 2015 Trip spans 27 days
EVA Air
EVA Air
SEA
20:00
LHR
06:10
34h 10m
2 stops
LHR
16:20
SEA
21:10
28h 50m
2 stops
Change your search
Direct flights SEA - LON on British Airways
Flight No. Departure SEA Arrival LHR Sun Mon Tue Wed Thu Fri Sat Valid between
52 14:05 07:30 2 Nov - 23 Nov
52 15:05 07:30 26 Oct - 31 Oct
48 18:00 11:30 2 Nov - 24 Dec
48 18:05 11:35 7 Nov - 7 Mar
48 19:00 11:30 26 Oct - 30 Oct
48 19:05 11:35 25 Oct - 1 Nov
Airports
Origin

Seattle
£744
Destination

London
only £744
only £777