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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: Thu 5 Mar 2015 Return: Thu 12 Mar 2015 Trip spans 7 days
Icelandair
Icelandair
LHR
08:00
SEA
19:40
11h 40m
1 stop
SEA
12:30
LHR
00:30
12h 00m
1 stop
Depart: Wed 21 Jan 2015 Return: Wed 28 Jan 2015 Trip spans 8 days
SAS
SAS
LHR
02:05
SEA
00:22
22h 17m
2 stops
SEA
04:02
LHR
04:50
24h 48m
2 stops
Depart: Wed 18 Feb 2015 Return: Sun 22 Feb 2015 Trip spans 5 days
Multiple Airlines
Multiple Airlines
LHR
10:30
SEA
12:35
26h 05m
1 stop
SEA
03:05
LHR
21:40
18h 35m
1 stop
Depart: Tue 6 Jan 2015 Return: Tue 13 Jan 2015 Trip spans 8 days
Delta
Delta
LHR
07:00
SEA
00:42
17h 42m
1 stop
SEA
04:05
LHR
19:25
15h 20m
1 stop
Depart: Fri 5 Dec 2014 Return: Wed 10 Dec 2014 Trip spans 6 days
Iberia
Iberia
LHR
01:30
SEA
00:10
22h 40m
2 stops
SEA
02:00
LHR
17:20
15h 20m
1 stop
Depart: Fri 27 Mar 2015 Return: Tue 7 Apr 2015 Trip spans 12 days
British Airways
British Airways
LHR
05:20
SEA
15:05
9h 45m
nonstop
SEA
14:45
LHR
00:00
9h 15m
nonstop
Depart: Mon 15 Dec 2014 Return: Wed 7 Jan 2015 Trip spans 24 days
Air France
Air France
LHR
08:00
SEA
18:21
10h 21m
nonstop
SEA
13:37
LHR
23:25
9h 48m
nonstop
Depart: Thu 25 Dec 2014 Return: Wed 7 Jan 2015 Trip spans 14 days
American Airlines
American Airlines
LHR
07:35
SEA
01:05
17h 30m
1 stop
SEA
03:51
LHR
21:25
17h 34m
1 stop
Depart: Sun 11 Jan 2015 Return: Sun 25 Jan 2015 Trip spans 15 days
United
United
LHR
03:40
SEA
01:13
21h 33m
2 stops
SEA
12:03
LHR
08:25
20h 22m
2 stops
Depart: Sat 28 Mar 2015 Return: Sat 11 Apr 2015 Trip spans 15 days
US Airways
US Airways
LHR
13:15
SEA
13:18
24h 03m
1 stop
SEA
14:05
LHR
10:45
20h 40m
1 stop
Depart: Wed 18 Mar 2015 Return: Thu 9 Apr 2015 Trip spans 23 days
KLM Royal Dutch
KLM Royal Dutch
LHR
09:00
SEA
14:20
533h 20m
2 stops
SEA
15:15
LHR
01:05
9h 50m
nonstop
Depart: Sat 27 Dec 2014 Return: Wed 21 Jan 2015 Trip spans 26 days
Virgin Atlantic
Virgin Atlantic
LHR
08:00
SEA
18:21
10h 21m
nonstop
SEA
09:15
LHR
02:25
17h 10m
1 stop
Depart: Wed 27 May 2015 Return: Wed 17 Jun 2015 Trip spans 22 days
Lufthansa
Lufthansa
LHR
04:30
SEA
22:46
18h 16m
2 stops
SEA
09:35
LHR
22:40
13h 05m
1 stop
Depart: Sun 31 May 2015 Return: Tue 9 Jun 2015 Trip spans 10 days
Austrian Airlines
Austrian Airlines
LHR
11:20
SEA
00:25
37h 05m
2 stops
SEA
04:05
LHR
06:40
26h 35m
2 stops
Change your search
Direct flights LHR - SEA on British Airways
Flight No. Departure LHR Arrival SEA Mon Tue Wed Thu Fri Sat Sun Valid between
53 09:20 11:05 28 Dec - 4 Jan
53 09:20 11:05 5 Jan - 8 Feb
53 09:20 11:05 12 Dec - 21 Dec
53 09:20 11:05 1 Dec - 7 Dec
53 09:20 11:05 8 Dec - 15 Dec
49 14:15 16:05 26 Dec - 7 Mar
49 14:15 16:05 25 Nov - 24 Dec
Airports
Origin

London
£501
Destination

Seattle
£501