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

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

Book cheap flights from London Heathrow to Seattle/Tacoma Intl

(Round-trip)
Depart: Sat 24 Oct 2015 Return: Sat 31 Oct 2015 Trip spans 8 days
£500
Select
Icelandair
Icelandair
LHR
17:10
SEA
21:40
28h 30m
1 stop
SEA
12:30
LHR
07:30
20h 00m
1 stop
Depart: Tue 21 Apr 2015 Return: Sun 26 Apr 2015 Trip spans 6 days
£630
Select
Aeroflot
Aeroflot
LHR
18:45
SEA
02:14
31h 29m
2 stops
SEA
03:20
LHR
00:05
44h 45m
2 stops
Depart: Sun 3 May 2015 Return: Sun 10 May 2015 Trip spans 8 days
£671
Select
Delta
Delta
LHR
09:00
SEA
01:32
16h 32m
1 stop
SEA
15:13
LHR
01:00
9h 47m
nonstop
Depart: Wed 26 Aug 2015 Return: Tue 15 Sep 2015 Trip spans 21 days
£675
Select
American Airlines
American Airlines
LHR
10:00
SEA
03:52
17h 52m
1 stop
SEA
03:00
LHR
18:50
15h 50m
1 stop
Depart: Tue 12 May 2015 Return: Tue 19 May 2015 Trip spans 8 days
£714
Select
SAS
SAS
LHR
02:40
SEA
00:10
21h 30m
2 stops
SEA
10:05
LHR
00:50
38h 45m
2 stops
Depart: Fri 19 Jun 2015 Return: Sat 27 Jun 2015 Trip spans 9 days
£770
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
02:30
SEA
15:09
12h 39m
1 stop
SEA
14:01
LHR
04:15
14h 14m
1 stop
Depart: Fri 15 May 2015 Return: Sun 24 May 2015 Trip spans 10 days
£827
Select
Air Canada
Air Canada
LHR
04:30
SEA
01:26
20h 56m
2 stops
SEA
15:15
LHR
09:00
17h 45m
2 stops
Depart: Thu 24 Sep 2015 Return: Thu 1 Oct 2015 Trip spans 8 days
£890
Select
Finnair
Finnair
LHR
11:30
SEA
21:05
9h 35m
nonstop
SEA
15:15
LHR
00:30
9h 15m
nonstop
Depart: Wed 6 May 2015 Return: Sun 17 May 2015 Trip spans 12 days
£896
Select
US Airways
US Airways
LHR
07:00
SEA
00:49
17h 49m
1 stop
SEA
09:10
LHR
23:25
14h 15m
1 stop
Depart: Sat 25 Apr 2015 Return: Sun 26 Apr 2015 Trip spans 2 days
£930
Select
United
United
LHR
08:05
SEA
03:57
19h 52m
2 stops
SEA
05:25
LHR
23:50
18h 25m
1 stop
Depart: Mon 4 May 2015 Return: Sat 23 May 2015 Trip spans 20 days
£939
Select
British Airways
British Airways
LHR
11:30
SEA
21:05
9h 35m
nonstop
SEA
10:00
LHR
19:15
9h 15m
nonstop
Depart: Sun 16 Aug 2015 Return: Thu 27 Aug 2015 Trip spans 12 days
£1015
Select
Brussels Airlines
Brussels Airlines
LHR
07:05
SEA
00:25
41h 20m
2 stops
SEA
04:05
LHR
05:05
25h 00m
2 stops
Depart: Tue 4 Aug 2015 Return: Mon 10 Aug 2015 Trip spans 7 days
£1085
Select
Virgin Atlantic
Virgin Atlantic
LHR
07:50
SEA
23:34
15h 44m
1 stop
SEA
09:45
LHR
23:05
13h 20m
1 stop
Depart: Sat 18 Jul 2015 Return: Fri 31 Jul 2015 Trip spans 14 days
£1109
Select
LOT Polish Air
LOT Polish Air
LHR
13:50
SEA
04:36
38h 46m
2 stops
SEA
09:45
LHR
05:00
19h 15m
2 stops
Depart: Fri 26 Jun 2015 Return: Sun 5 Jul 2015 Trip spans 10 days
£1212
Select
Iberia
Iberia
LHR
05:40
SEA
15:15
9h 35m
nonstop
SEA
10:00
LHR
19:15
9h 15m
nonstop
Direct flights LHR - SEA on British Airways
Flight No. Departure LHR Arrival SEA Mon Tue Wed Thu Fri Sat Sun Valid between
53 08:50 10:25 9 Apr - 22 Oct
53 09:40 11:15 10 Apr - 23 Oct
53 09:55 11:30 11 Apr - 24 Oct
49 15:30 17:05 7 Apr - 24 Oct
Airports
Origin

London
£500
Destination

Seattle
£500