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Find Deals on Flights 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 2 Jun 2015 Return: Tue 9 Jun 2015 Trip spans 8 days
£452
Select
Delta
Delta
LHR
09:00
SEA
01:32
16h 32m
1 stop
SEA
15:15
LHR
01:00
9h 45m
nonstop
Depart: Mon 19 Oct 2015 Return: Mon 26 Oct 2015 Trip spans 8 days
£512
Select
Icelandair
Icelandair
LHR
17:10
SEA
21:45
28h 35m
1 stop
SEA
12:30
LHR
00:30
12h 00m
1 stop
Depart: Mon 8 Jun 2015 Return: Sat 20 Jun 2015 Trip spans 13 days
£583
Select
Iberia
Iberia
LHR
13:15
SEA
23:54
34h 39m
1 stop
SEA
01:00
LHR
10:45
33h 45m
1 stop
Depart: Sat 20 Jun 2015 Return: Wed 24 Jun 2015 Trip spans 5 days
£583
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
17:00
SEA
15:09
22h 09m
1 stop
SEA
14:01
LHR
03:00
12h 59m
1 stop
Depart: Tue 9 Jun 2015 Return: Tue 16 Jun 2015 Trip spans 8 days
£592
Select
United
United
LHR
03:30
SEA
23:59
20h 29m
2 stops
SEA
20:27
LHR
23:20
26h 53m
1 stop
Depart: Fri 12 Jun 2015 Return: Tue 16 Jun 2015 Trip spans 5 days
£605
Select
Virgin Atlantic
Virgin Atlantic
LHR
09:05
SEA
19:11
10h 06m
nonstop
SEA
15:15
LHR
01:00
9h 45m
nonstop
Depart: Sun 21 Jun 2015 Return: Mon 29 Jun 2015 Trip spans 9 days
£617
Select
Air France
Air France
LHR
05:45
SEA
18:50
13h 05m
1 stop
SEA
15:15
LHR
01:00
9h 45m
nonstop
Depart: Wed 14 Oct 2015 Return: Mon 19 Oct 2015 Trip spans 6 days
£632
Select
American Airlines
American Airlines
LHR
10:00
SEA
05:23
19h 23m
1 stop
SEA
08:00
LHR
02:20
18h 20m
1 stop
Depart: Fri 11 Sep 2015 Return: Fri 18 Sep 2015 Trip spans 8 days
£660
Select
Aer Lingus
Aer Lingus
LHR
04:50
SEA
02:22
21h 32m
2 stops
SEA
06:53
LHR
00:40
17h 47m
2 stops
Depart: Thu 17 Sep 2015 Return: Tue 22 Sep 2015 Trip spans 6 days
£669
Select
SAS
SAS
LHR
10:05
SEA
13:42
27h 37m
2 stops
SEA
02:00
LHR
21:35
19h 35m
2 stops
Depart: Sun 31 May 2015 Return: Thu 4 Jun 2015 Trip spans 5 days
£840
Select
Finnair
Finnair
LHR
11:30
SEA
21:05
9h 35m
nonstop
SEA
10:00
LHR
19:15
9h 15m
nonstop
Depart: Thu 16 Jul 2015 Return: Wed 22 Jul 2015 Trip spans 7 days
£1061
Select
LOT Polish Air
LOT Polish Air
LHR
06:15
SEA
05:10
22h 55m
2 stops
SEA
09:56
LHR
05:00
19h 04m
2 stops
Depart: Mon 29 Jun 2015 Return: Mon 13 Jul 2015 Trip spans 15 days
£1096
Select
Air Canada
Air Canada
LHR
04:30
SEA
01:23
20h 53m
2 stops
SEA
03:30
LHR
23:05
19h 35m
1 stop
Depart: Mon 3 Aug 2015 Return: Sat 22 Aug 2015 Trip spans 20 days
£1118
Select
Lufthansa
Lufthansa
LHR
02:30
SEA
15:30
13h 00m
1 stop
SEA
12:15
LHR
23:40
11h 25m
1 stop
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 21 May - 22 Oct
53 09:40 11:15 22 May - 23 Oct
53 09:55 11:30 23 May - 24 Oct
49 15:30 17:05 21 May - 24 Oct
Airports
Origin

London
£452
Destination

Seattle
£452