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

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

Book cheap flights from London to Seattle/Tacoma Intl

(Round-trip)
Depart: Sun 3 May 2015 Return: Mon 11 May 2015 Trip spans 9 days
£482
Select
Delta
Delta
LHR
09:00
SEA
01:32
16h 32m
1 stop
SEA
15:13
LHR
01:00
9h 47m
nonstop
Depart: Fri 4 Sep 2015 Return: Mon 7 Sep 2015 Trip spans 4 days
£495
Select
Icelandair
Icelandair
LGW
09:10
SEA
21:45
12h 35m
1 stop
SEA
12:30
LGW
23:45
11h 15m
1 stop
Depart: Wed 9 Sep 2015 Return: Tue 29 Sep 2015 Trip spans 21 days
£533
Select
Icelandair
Icelandair
LHR
09:00
SEA
21:45
12h 45m
1 stop
SEA
12:15
LHR
23:45
11h 30m
1 stop
Depart: Wed 6 May 2015 Return: Mon 11 May 2015 Trip spans 6 days
£611
Select
United
United
LHR
06:35
SEA
02:04
19h 29m
2 stops
SEA
08:00
LHR
00:20
16h 20m
1 stop
Depart: Mon 1 Jun 2015 Return: Sun 7 Jun 2015 Trip spans 7 days
£633
Select
American Airlines
American Airlines
LHR
10:00
SEA
03:54
17h 54m
1 stop
SEA
07:10
LHR
02:20
19h 10m
1 stop
Depart: Thu 11 Jun 2015 Return: Wed 17 Jun 2015 Trip spans 7 days
£668
Select
US Airways
US Airways
LHR
06:15
SEA
22:54
16h 39m
1 stop
SEA
20:40
LHR
10:10
13h 30m
1 stop
Depart: Mon 30 Mar 2015 Return: Tue 14 Apr 2015 Trip spans 16 days
£831
Select
SAS
SAS
LHR
10:05
SEA
15:26
53h 21m
2 stops
SEA
09:48
LHR
04:00
18h 12m
2 stops
Depart: Sun 29 Mar 2015 Return: Tue 7 Apr 2015 Trip spans 10 days
£840
Select
Air France
Air France
LHR
09:05
SEA
19:23
10h 18m
nonstop
SEA
09:12
LHR
22:30
13h 18m
1 stop
Depart: Fri 21 Aug 2015 Return: Sun 30 Aug 2015 Trip spans 10 days
£882
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
09:05
SEA
19:20
10h 15m
nonstop
SEA
15:20
LHR
01:00
9h 40m
nonstop
Depart: Wed 1 Apr 2015 Return: Thu 16 Apr 2015 Trip spans 16 days
£895
Select
Lufthansa
Lufthansa
LCY
12:55
SEA
15:30
26h 35m
1 stop
SEA
09:40
LCY
04:20
18h 40m
1 stop
Depart: Tue 31 Mar 2015 Return: Thu 2 Apr 2015 Trip spans 3 days
£1092
Select
Lufthansa
Lufthansa
LHR
02:30
SEA
15:30
13h 00m
1 stop
SEA
12:10
LHR
23:50
11h 40m
1 stop
Depart: Sat 11 Jul 2015 Return: Tue 28 Jul 2015 Trip spans 18 days
£1099
Select
LOT Polish Air
LOT Polish Air
LHR
06:15
SEA
04:36
22h 21m
2 stops
SEA
09:45
LHR
05:00
19h 15m
2 stops
Depart: Mon 29 Jun 2015 Return: Mon 13 Jul 2015 Trip spans 15 days
£1122
Select
Air Canada
Air Canada
LHR
14:00
SEA
14:37
24h 37m
1 stop
SEA
07:20
LHR
20:35
13h 15m
1 stop
Direct flights LON - SEA on British Airways
Flight No. Departure LHR Arrival SEA Mon Tue Wed Thu Fri Sat Sun Valid between
53 08:50 10:25 2 Apr - 22 Oct
53 09:40 11:15 3 Apr - 23 Oct
53 09:55 11:30 29 Mar - 24 Oct
49 15:30 17:05 30 Mar - 18 Oct
Airports
Origin

London
only £482
only £895
only £495
Destination

Seattle
£482