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Find flight deals from London Heathrow to Seattle (LHR - SEA)

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

Book cheap flights from London Heathrow to Seattle

(Round-trip)
Depart: Tue, 2 Sep, 2014 Return: Tue, 9 Sep, 2014 Trip spans 8 days
Delta
Delta
LHR
08:35
SEA
18:50
10h 15m
1 stop
SEA
12:18
LHR
02:00
13h 42m
1 stop
Depart: Thu, 4 Sep, 2014 Return: Fri, 19 Sep, 2014 Trip spans 16 days
Delta
Delta
LHR
09:00
SEA
01:23
16h 23m
direct
SEA
14:33
LHR
00:05
9h 32m
direct
Depart: Wed, 3 Sep, 2014 Return: Thu, 18 Sep, 2014 Trip spans 16 days
Air Canada
Air Canada
LHR
04:30
SEA
02:55
22h 25m
1 stop
SEA
07:20
LHR
23:05
15h 45m
1 stop
Depart: Fri, 5 Sep, 2014 Return: Tue, 23 Sep, 2014 Trip spans 19 days
Delta
Delta
LHR
08:35
SEA
18:50
10h 15m
1 stop
SEA
12:23
LHR
01:35
13h 12m
1 stop
Depart: Sat, 23 Aug, 2014 Return: Wed, 27 Aug, 2014 Trip spans 5 days
Delta
Delta
LHR
05:35
SEA
21:14
15h 39m
1 stop
SEA
12:30
LHR
02:00
13h 30m
1 stop
Depart: Wed, 10 Sep, 2014 Return: Sat, 27 Sep, 2014 Trip spans 18 days
SAS
SAS
LHR
03:05
SEA
01:06
22h 01m
2 stops
SEA
08:45
LHR
04:00
19h 15m
2 stops
Depart: Thu, 28 Aug, 2014 Return: Tue, 2 Sep, 2014 Trip spans 6 days
Delta
Delta
LHR
08:35
SEA
18:44
10h 09m
1 stop
SEA
12:23
LHR
01:35
13h 12m
1 stop
Depart: Sat, 6 Sep, 2014 Return: Thu, 18 Sep, 2014 Trip spans 13 days
Air Canada
Air Canada
LHR
04:30
SEA
02:55
22h 25m
1 stop
SEA
07:20
LHR
23:05
15h 45m
1 stop
Depart: Tue, 26 Aug, 2014 Return: Wed, 3 Sep, 2014 Trip spans 9 days
Virgin Atlantic
Virgin Atlantic
LHR
07:15
SEA
00:55
17h 40m
direct
SEA
14:33
LHR
00:05
9h 32m
direct
Depart: Sat, 30 Aug, 2014 Return: Sat, 6 Sep, 2014 Trip spans 8 days
Air Canada
Air Canada
LHR
04:30
SEA
02:56
22h 26m
2 stops
SEA
04:00
LHR
19:30
15h 30m
2 stops
Depart: Wed, 27 Aug, 2014 Return: Fri, 5 Sep, 2014 Trip spans 10 days
Air Canada
Air Canada
LHR
04:30
SEA
02:56
22h 26m
2 stops
SEA
04:00
LHR
19:30
15h 30m
2 stops
Depart: Fri, 22 Aug, 2014 Return: Fri, 5 Sep, 2014 Trip spans 15 days
Virgin Atlantic
Virgin Atlantic
LHR
07:15
SEA
00:55
17h 40m
direct
SEA
14:33
LHR
00:05
9h 32m
direct
Depart: Mon, 1 Sep, 2014 Return: Thu, 18 Sep, 2014 Trip spans 18 days
Air Canada
Air Canada
LHR
11:00
SEA
14:35
27h 35m
1 stop
SEA
07:20
LHR
23:05
15h 45m
1 stop
Depart: Sun, 24 Aug, 2014 Return: Sun, 31 Aug, 2014 Trip spans 8 days
Virgin Atlantic
Virgin Atlantic
LHR
07:15
SEA
00:55
17h 40m
direct
SEA
14:39
LHR
00:05
9h 26m
direct
Depart: Fri, 29 Aug, 2014 Return: Wed, 3 Sep, 2014 Trip spans 6 days
United
United
LHR
02:30
SEA
15:40
13h 10m
2 stops
SEA
07:40
LHR
00:15
16h 35m
2 stops
Depart: Mon, 25 Aug, 2014 Return: Mon, 1 Sep, 2014 Trip spans 8 days
United
United
LHR
08:05
SEA
03:59
19h 54m
1 stop
SEA
18:17
LHR
09:55
15h 38m
1 stop
Depart: Thu, 7 Aug, 2014 Return: Sun, 17 Aug, 2014 Trip spans 11 days
Delta
Delta
LHR
10:25
SEA
00:55
14h 30m
1 stop
SEA
12:15
LHR
03:05
14h 50m
1 stop
Depart: Sun, 17 Aug, 2014 Return: Wed, 3 Sep, 2014 Trip spans 18 days
KLM Royal Dutch
KLM Royal Dutch
LHR
04:40
SEA
20:02
15h 22m
direct
SEA
14:33
LHR
00:05
9h 32m
direct
Depart: Fri, 15 Aug, 2014 Return: Sat, 23 Aug, 2014 Trip spans 9 days
Delta
Delta
LHR
04:40
SEA
20:02
15h 22m
1 stop
SEA
09:15
LHR
01:35
16h 20m
1 stop
Depart: Fri, 8 Aug, 2014 Return: Sat, 23 Aug, 2014 Trip spans 16 days
Delta
Delta
LHR
08:35
SEA
18:44
10h 09m
1 stop
SEA
09:15
LHR
01:35
16h 20m
1 stop
Change your search
Direct flights LHR - SEA on British Airways
Flight No. Departure LHR Arrival SEA Sun Mon Tue Wed Thu Fri Sat Valid between
53 09:55 11:30 31 Jul - 15 Aug
53 09:55 11:30 26 Jul - 10 Aug
53 09:55 11:30 16 Aug - 5 Sep
49 15:05 16:40 3 Sep - 10 Sep
49 15:05 16:40 26 Jul - 31 Aug
49 15:05 16:40 1 Sep - 16 Sep
Airports
Origin

London
£1052
Destination

Seattle
£1052