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Find flight deals from United Kingdom to Seattle

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

Book cheap flights to Seattle

(Round-trip)
Depart: Wed, 10 Sep, 2014 Return: Wed, 1 Oct, 2014 Trip spans 22 days
United
United
LHR
06:25
SEA
22:51
16h 26m
1 stop
SEA
07:17
LHR
00:15
16h 58m
1 stop
Depart: Sun, 14 Sep, 2014 Return: Thu, 16 Oct, 2014 Trip spans 33 days
United
United
LHR
06:25
SEA
02:08
19h 43m
1 stop
SEA
07:17
LHR
00:15
16h 58m
1 stop
Depart: Wed, 17 Sep, 2014 Return: Sun, 21 Sep, 2014 Trip spans 5 days
United
United
LHR
06:25
SEA
02:08
19h 43m
1 stop
SEA
07:17
LHR
00:15
16h 58m
1 stop
Depart: Sun, 21 Sep, 2014 Return: Wed, 1 Oct, 2014 Trip spans 11 days
United
United
LHR
06:25
SEA
01:56
19h 31m
1 stop
SEA
07:17
LHR
00:15
16h 58m
1 stop
Depart: Tue, 9 Sep, 2014 Return: Thu, 18 Sep, 2014 Trip spans 10 days
United
United
LHR
03:50
SEA
21:11
17h 21m
2 stops
SEA
03:41
LHR
21:20
17h 39m
2 stops
Depart: Sun, 7 Sep, 2014 Return: Sun, 14 Sep, 2014 Trip spans 8 days
United
United
LHR
06:25
SEA
02:08
19h 43m
1 stop
SEA
07:59
LHR
00:15
16h 16m
1 stop
Depart: Mon, 8 Sep, 2014 Return: Sun, 14 Sep, 2014 Trip spans 7 days
United
United
LHR
06:25
SEA
02:08
19h 43m
1 stop
SEA
17:32
LHR
09:20
15h 48m
1 stop
Depart: Wed, 3 Sep, 2014 Return: Sun, 7 Sep, 2014 Trip spans 5 days
United
United
LHR
06:35
SEA
02:08
19h 33m
1 stop
SEA
07:59
LHR
00:15
16h 16m
1 stop
Depart: Mon, 1 Sep, 2014 Return: Tue, 9 Sep, 2014 Trip spans 9 days
United
United
LHR
06:35
SEA
02:08
19h 33m
2 stops
SEA
03:41
LHR
19:40
15h 59m
2 stops
Depart: Tue, 2 Sep, 2014 Return: Tue, 9 Sep, 2014 Trip spans 8 days
United
United
LHR
06:35
SEA
02:08
19h 33m
2 stops
SEA
03:41
LHR
19:40
15h 59m
2 stops
Depart: Fri, 5 Sep, 2014 Return: Sun, 14 Sep, 2014 Trip spans 10 days
United
United
LHR
08:05
SEA
02:31
18h 26m
1 stop
SEA
07:59
LHR
00:15
16h 16m
1 stop
Depart: Sat, 6 Sep, 2014 Return: Sun, 14 Sep, 2014 Trip spans 9 days
United
United
LHR
04:40
SEA
01:16
20h 36m
1 stop
SEA
07:59
LHR
00:15
16h 16m
1 stop
Depart: Wed, 27 Aug, 2014 Return: Mon, 8 Sep, 2014 Trip spans 13 days
United
United
LHR
06:35
SEA
02:08
19h 33m
2 stops
SEA
03:41
LHR
19:40
15h 59m
2 stops
Depart: Sun, 31 Aug, 2014 Return: Sun, 7 Sep, 2014 Trip spans 8 days
United
United
LHR
14:00
SEA
16:20
26h 20m
1 stop
SEA
07:59
LHR
00:15
16h 16m
1 stop
Depart: Fri, 12 Sep, 2014 Return: Wed, 17 Sep, 2014 Trip spans 6 days
American Airlines
American Airlines
LHR
06:30
SEA
01:55
19h 25m
1 stop
SEA
03:00
LHR
18:20
15h 20m
1 stop
Depart: Fri, 29 Aug, 2014 Return: Mon, 8 Sep, 2014 Trip spans 11 days
Delta
Delta
LHR
08:35
SEA
18:44
10h 09m
1 stop
SEA
12:18
LHR
02:00
13h 42m
1 stop
Depart: Wed, 24 Sep, 2014 Return: Wed, 1 Oct, 2014 Trip spans 8 days
United
United
LHR
06:25
SEA
02:31
20h 06m
1 stop
SEA
07:17
LHR
00:15
16h 58m
1 stop
Depart: Sat, 30 Aug, 2014 Return: Sun, 7 Sep, 2014 Trip spans 9 days
United
United
LHR
06:05
SEA
02:08
20h 03m
1 stop
SEA
07:59
LHR
00:15
16h 16m
1 stop
Depart: Tue, 16 Sep, 2014 Return: Tue, 23 Sep, 2014 Trip spans 8 days
US Airways
US Airways
LHR
10:25
SEA
16:08
29h 43m
1 stop
SEA
03:10
LHR
19:50
16h 40m
1 stop
Depart: Tue, 23 Sep, 2014 Return: Tue, 30 Sep, 2014 Trip spans 8 days
US Airways
US Airways
LHR
10:25
SEA
16:08
29h 43m
1 stop
SEA
06:59
LHR
23:25
16h 26m
1 stop
Change your search
Airports
Origin

London
£657
Destination

Seattle
£657