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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: 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
£527
Select
Icelandair
Icelandair
LHR
09:00
SEA
21:45
12h 45m
1 stop
SEA
12:30
LHR
08:10
19h 40m
1 stop
Depart: Thu 23 Apr 2015 Return: Sun 26 Apr 2015 Trip spans 4 days
£628
Select
United
United
LHR
06:35
SEA
00:06
17h 31m
2 stops
SEA
07:29
LHR
00:20
16h 51m
1 stop
Depart: Thu 14 May 2015 Return: Sun 31 May 2015 Trip spans 18 days
£633
Select
American Airlines
American Airlines
LHR
10:00
SEA
02:09
16h 09m
1 stop
SEA
07:10
LHR
02:20
19h 10m
1 stop
Depart: Wed 15 Apr 2015 Return: Tue 28 Apr 2015 Trip spans 14 days
£653
Select
SAS
SAS
LHR
03:05
SEA
00:16
21h 11m
2 stops
SEA
09:57
LHR
07:30
21h 33m
2 stops
Depart: Tue 9 Jun 2015 Return: Tue 7 Jul 2015 Trip spans 29 days
£685
Select
US Airways
US Airways
LHR
06:15
SEA
22:54
16h 39m
1 stop
SEA
20:45
LHR
10:10
13h 25m
1 stop
Depart: Thu 20 Aug 2015 Return: Sat 5 Sep 2015 Trip spans 17 days
£869
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
09:05
SEA
19:20
10h 15m
nonstop
SEA
15:10
LHR
01:00
9h 50m
nonstop
Depart: Sun 16 Aug 2015 Return: Tue 15 Sep 2015 Trip spans 31 days
£894
Select
Brussels Airlines
Brussels Airlines
LHR
07:05
SEA
00:25
41h 20m
2 stops
SEA
06:27
LHR
05:05
22h 38m
2 stops
Depart: Thu 2 Apr 2015 Return: Sun 5 Apr 2015 Trip spans 4 days
£897
Select
Lufthansa
Lufthansa
LHR
02:30
SEA
15:30
13h 00m
1 stop
SEA
08:35
LHR
23:50
15h 15m
1 stop
Depart: Thu 2 Jul 2015 Return: Thu 30 Jul 2015 Trip spans 29 days
£1054
Select
LOT Polish Air
LOT Polish Air
LHR
06:15
SEA
04:36
22h 21m
2 stops
SEA
06:27
LHR
05:00
22h 33m
2 stops
Depart: Tue 30 Jun 2015 Return: Mon 27 Jul 2015 Trip spans 28 days
£1120
Select
Air Canada
Air Canada
LHR
14:00
SEA
14:37
24h 37m
1 stop
SEA
03:30
LHR
18:25
14h 55m
1 stop
Depart: Mon 27 Jul 2015 Return: Fri 31 Jul 2015 Trip spans 5 days
£1423
Select
Finnair
Finnair
LHR
11:05
SEA
20:40
9h 35m
nonstop
SEA
14:45
LHR
00:00
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 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
£482
Destination

Seattle
£482