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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: Tue 3 Feb 2015 Return: Wed 18 Feb 2015 Trip spans 16 days
£475
Select
Iberia
Iberia
LHR
07:35
SEA
00:59
17h 24m
1 stop
SEA
03:51
LHR
18:45
14h 54m
1 stop
Depart: Fri 17 Apr 2015 Return: Wed 22 Apr 2015 Trip spans 6 days
£496
Select
Icelandair
Icelandair
LHR
17:10
SEA
21:45
28h 35m
1 stop
SEA
12:30
LHR
08:10
19h 40m
1 stop
Depart: Tue 3 Mar 2015 Return: Sun 8 Mar 2015 Trip spans 5 days
£512
Select
Delta
Delta
LHR
08:00
SEA
18:26
10h 26m
nonstop
SEA
13:48
LHR
04:25
14h 37m
1 stop
Depart: Fri 13 Feb 2015 Return: Wed 4 Mar 2015 Trip spans 20 days
£514
Select
Multiple Airlines
Multiple Airlines
LHR
04:20
SEA
14:05
9h 45m
nonstop
SEA
03:51
LHR
18:45
14h 54m
1 stop
Depart: Tue 10 Feb 2015 Return: Wed 18 Feb 2015 Trip spans 9 days
£538
Select
SAS
SAS
LHR
02:05
SEA
00:22
22h 17m
2 stops
SEA
09:05
LHR
08:15
23h 10m
2 stops
Depart: Mon 23 Mar 2015 Return: Sun 29 Mar 2015 Trip spans 7 days
£551
Select
United
United
LHR
02:30
SEA
16:15
13h 45m
1 stop
SEA
17:56
LHR
09:20
15h 24m
1 stop
Depart: Tue 24 Mar 2015 Return: Sun 29 Mar 2015 Trip spans 6 days
£557
Select
British Airways
British Airways
LHR
10:15
SEA
20:05
9h 50m
nonstop
SEA
03:00
LHR
18:20
15h 20m
1 stop
Depart: Wed 25 Mar 2015 Return: Sun 29 Mar 2015 Trip spans 5 days
£579
Select
Lufthansa
Lufthansa
LHR
02:30
SEA
16:15
13h 45m
1 stop
SEA
09:40
LHR
00:40
15h 00m
1 stop
Depart: Sun 15 Feb 2015 Return: Thu 19 Feb 2015 Trip spans 5 days
£605
Select
US Airways
US Airways
LHR
08:20
SEA
15:20
31h 00m
1 stop
SEA
01:35
LHR
17:55
16h 20m
1 stop
Depart: Sun 3 May 2015 Return: Mon 11 May 2015 Trip spans 9 days
£626
Select
American Airlines
American Airlines
LHR
10:00
SEA
03:03
17h 03m
1 stop
SEA
11:05
LHR
02:20
15h 15m
1 stop
Depart: Sun 29 Mar 2015 Return: Sun 12 Apr 2015 Trip spans 15 days
£646
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
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 30 Jan - 8 Feb
53 09:20 11:05 13 Feb - 20 Feb
53 09:20 11:05 22 Feb - 6 Mar
53 09:20 12:05 8 Mar - 27 Mar
49 14:15 17:05 8 Mar - 28 Mar
49 14:15 16:05 4 Feb - 7 Mar
Airports
Origin

London
£475
Destination

Seattle
£475