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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: Wed 15 Apr 2015 Return: Tue 28 Apr 2015 Trip spans 14 days
£509
Select
Icelandair
Icelandair
LHR
09:00
SEA
21:45
12h 45m
1 stop
SEA
12:30
LHR
08:10
19h 40m
1 stop
Depart: Wed 11 Mar 2015 Return: Sun 15 Mar 2015 Trip spans 5 days
£513
Select
Delta
Delta
LHR
09:00
SEA
19:26
10h 26m
nonstop
SEA
13:48
LHR
04:25
14h 37m
1 stop
Depart: Wed 11 Feb 2015 Return: Wed 18 Feb 2015 Trip spans 8 days
£517
Select
Iberia
Iberia
LHR
09:25
SEA
02:25
17h 00m
1 stop
SEA
03:51
LHR
18:45
14h 54m
1 stop
Depart: Wed 18 Mar 2015 Return: Wed 25 Mar 2015 Trip spans 8 days
£546
Select
United
United
LHR
05:30
SEA
23:05
17h 35m
2 stops
SEA
05:13
LHR
00:30
19h 17m
2 stops
Depart: Thu 12 Feb 2015 Return: Fri 20 Feb 2015 Trip spans 9 days
£554
Select
US Airways
US Airways
LHR
06:40
SEA
00:00
17h 20m
1 stop
SEA
01:40
LHR
20:25
18h 45m
1 stop
Depart: Thu 26 Feb 2015 Return: Sat 28 Feb 2015 Trip spans 3 days
£569
Select
Multiple Airlines
Multiple Airlines
LHR
01:30
SEA
15:15
13h 45m
1 stop
SEA
14:00
LHR
22:15
32h 15m
1 stop
Depart: Sat 28 Feb 2015 Return: Fri 6 Mar 2015 Trip spans 7 days
£583
Select
SAS
SAS
LHR
01:40
SEA
00:37
22h 57m
2 stops
SEA
16:56
LHR
20:00
27h 04m
2 stops
Depart: Sun 1 Feb 2015 Return: Thu 26 Feb 2015 Trip spans 26 days
£611
Select
Lufthansa
Lufthansa
LHR
13:30
SEA
15:15
25h 45m
1 stop
SEA
04:25
LHR
22:15
17h 50m
1 stop
Depart: Wed 25 Mar 2015 Return: Mon 6 Apr 2015 Trip spans 13 days
£629
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
08:50
SEA
00:31
15h 41m
1 stop
SEA
15:10
LHR
01:00
9h 50m
nonstop
Depart: Thu 14 May 2015 Return: Thu 4 Jun 2015 Trip spans 22 days
£633
Select
American Airlines
American Airlines
LHR
10:00
SEA
03:03
17h 03m
1 stop
SEA
07:10
LHR
02:20
19h 10m
1 stop
Depart: Sun 29 Mar 2015 Return: Sun 12 Apr 2015 Trip spans 15 days
£648
Select
Virgin Atlantic
Virgin Atlantic
LHR
16:05
SEA
14:40
22h 35m
1 stop
SEA
18:45
LHR
08:10
13h 25m
1 stop
Depart: Mon 20 Jul 2015 Return: Wed 29 Jul 2015 Trip spans 10 days
£1004
Select
British Airways
British Airways
LHR
08:25
SEA
01:00
16h 35m
1 stop
SEA
07:21
LHR
22:20
14h 59m
1 stop
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 12:05 8 Mar - 27 Mar
53 09:20 11:05 22 Feb - 6 Mar
53 09:20 11:05 13 Feb - 20 Feb
53 09:20 11:05 30 Jan - 8 Feb
49 14:15 16:05 8 Feb - 7 Mar
49 14:15 17:05 8 Mar - 28 Mar
49 14:15 16:05 29 Jan - 7 Feb
Airports
Origin

London
£509
Destination

Seattle
£509