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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: Fri, 29 Aug, 2014 Return: Mon, 15 Sep, 2014 Trip spans 18 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, 20 Aug, 2014 Return: Fri, 5 Sep, 2014 Trip spans 17 days
Delta
Delta
LHR
10:25
SEA
01:10
14h 45m
1 stop
SEA
08:15
LHR
00:30
16h 15m
1 stop
Depart: Wed, 27 Aug, 2014 Return: Thu, 4 Sep, 2014 Trip spans 9 days
United
United
LHR
03:30
SEA
22:16
18h 46m
1 stop
SEA
07:01
LHR
21:20
14h 19m
1 stop
Depart: Thu, 28 Aug, 2014 Return: Thu, 4 Sep, 2014 Trip spans 8 days
United
United
LHR
04:40
SEA
22:16
17h 36m
1 stop
SEA
07:01
LHR
21:20
14h 19m
1 stop
Depart: Tue, 2 Sep, 2014 Return: Sun, 7 Sep, 2014 Trip spans 6 days
United
United
LHR
08:05
SEA
01:07
17h 02m
1 stop
SEA
17:32
LHR
09:20
15h 48m
1 stop
Depart: Mon, 8 Sep, 2014 Return: Mon, 22 Sep, 2014 Trip spans 15 days
Delta
Delta
MAN
05:05
SEA
01:55
20h 50m
2 stops
SEA
04:47
MAN
22:30
17h 43m
2 stops
Depart: Fri, 22 Aug, 2014 Return: Fri, 5 Sep, 2014 Trip spans 15 days
Delta
Delta
LHR
10:25
SEA
01:10
14h 45m
1 stop
SEA
10:10
LHR
00:30
14h 20m
1 stop
Depart: Sat, 30 Aug, 2014 Return: Sat, 6 Sep, 2014 Trip spans 8 days
United
United
LHR
08:05
SEA
01:47
17h 42m
1 stop
SEA
07:01
LHR
21:20
14h 19m
1 stop
Depart: Sun, 31 Aug, 2014 Return: Sun, 7 Sep, 2014 Trip spans 8 days
United
United
LHR
04:40
SEA
01:07
20h 27m
1 stop
SEA
17:32
LHR
09:20
15h 48m
1 stop
Depart: Mon, 25 Aug, 2014 Return: Tue, 2 Sep, 2014 Trip spans 9 days
United
United
LHR
06:05
SEA
02:31
20h 26m
1 stop
SEA
17:32
LHR
09:20
15h 48m
1 stop
Depart: Tue, 26 Aug, 2014 Return: Tue, 2 Sep, 2014 Trip spans 8 days
United
United
LHR
04:40
SEA
21:35
16h 55m
1 stop
SEA
17:32
LHR
09:20
15h 48m
1 stop
Depart: Thu, 21 Aug, 2014 Return: Thu, 28 Aug, 2014 Trip spans 8 days
KLM Royal Dutch
KLM Royal Dutch
MAN
07:15
SEA
20:02
12h 47m
1 stop
SEA
09:23
MAN
22:30
13h 07m
1 stop
Depart: Sat, 23 Aug, 2014 Return: Tue, 2 Sep, 2014 Trip spans 11 days
United
United
LHR
03:30
SEA
04:55
25h 25m
1 stop
SEA
17:32
LHR
09:20
15h 48m
1 stop
Depart: Sun, 24 Aug, 2014 Return: Tue, 2 Sep, 2014 Trip spans 10 days
United
United
LHR
06:25
SEA
02:37
20h 12m
1 stop
SEA
17:32
LHR
09:20
15h 48m
1 stop
Depart: Sun, 7 Sep, 2014 Return: Wed, 17 Sep, 2014 Trip spans 11 days
Air Europa
Air Europa
LGW
06:10
SEA
22:51
40h 41m
2 stops
SEA
06:59
LGW
04:15
21h 16m
2 stops
Depart: Sat, 16 Aug, 2014 Return: Sat, 23 Aug, 2014 Trip spans 8 days
KLM Royal Dutch
KLM Royal Dutch
LHR
16:25
SEA
20:02
27h 37m
1 stop
SEA
09:23
LHR
01:50
16h 27m
1 stop
Depart: Sun, 17 Aug, 2014 Return: Wed, 3 Sep, 2014 Trip spans 18 days
KLM Royal Dutch
KLM Royal Dutch
LHR
02:30
SEA
20:02
17h 32m
1 stop
SEA
14:07
LHR
05:35
15h 28m
1 stop
Depart: Tue, 19 Aug, 2014 Return: Tue, 26 Aug, 2014 Trip spans 8 days
United
United
LHR
07:40
SEA
03:36
19h 56m
2 stops
SEA
04:30
LHR
23:15
18h 45m
2 stops
Depart: Thu, 14 Aug, 2014 Return: Sun, 17 Aug, 2014 Trip spans 4 days
United
United
MAN
06:55
SEA
00:24
17h 29m
1 stop
SEA
18:41
MAN
18:55
24h 14m
1 stop
Depart: Mon, 18 Aug, 2014 Return: Tue, 26 Aug, 2014 Trip spans 9 days
KLM Royal Dutch
KLM Royal Dutch
LHR
02:30
SEA
15:23
12h 53m
direct
SEA
14:39
LHR
00:05
9h 26m
direct
Change your search
Airports
Origin

London
only £819
only £1125
Manchester
£1015
Destination

Seattle
£1125