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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 10 Nov 2015 Return: Tue 17 Nov 2015 Trip spans 8 days
£502
Select
Icelandair
Icelandair
LHR
15:35
SEA
19:40
28h 05m
1 stop
SEA
10:30
LHR
22:30
12h 00m
1 stop
Depart: Mon 21 Sep 2015 Return: Mon 5 Oct 2015 Trip spans 15 days
£634
Select
American Airlines
American Airlines
LHR
10:00
SEA
03:01
17h 01m
1 stop
SEA
10:45
LHR
02:20
15h 35m
1 stop
Depart: Wed 30 Sep 2015 Return: Tue 6 Oct 2015 Trip spans 7 days
£639
Select
Aer Lingus
Aer Lingus
LHR
04:50
SEA
02:12
21h 22m
2 stops
SEA
06:53
LHR
23:10
16h 17m
2 stops
Depart: Thu 10 Sep 2015 Return: Mon 14 Sep 2015 Trip spans 5 days
£645
Select
Delta
Delta
LHR
09:05
SEA
19:33
10h 28m
nonstop
SEA
10:36
LHR
03:50
17h 14m
1 stop
Depart: Wed 19 Aug 2015 Return: Mon 24 Aug 2015 Trip spans 6 days
£682
Select
United
United
LHR
06:35
SEA
01:36
19h 01m
2 stops
SEA
11:45
LHR
09:20
21h 35m
1 stop
Depart: Sun 16 Aug 2015 Return: Wed 26 Aug 2015 Trip spans 11 days
£846
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KLM Royal Dutch
KLM Royal Dutch
LHR
16:25
SEA
15:09
22h 44m
1 stop
SEA
14:10
LHR
03:00
12h 50m
1 stop
Depart: Tue 22 Sep 2015 Return: Tue 29 Sep 2015 Trip spans 8 days
£847
Select
British Airways
British Airways
LHR
11:30
SEA
21:05
9h 35m
nonstop
SEA
15:15
LHR
00:30
9h 15m
nonstop
Depart: Sat 17 Oct 2015 Return: Thu 22 Oct 2015 Trip spans 6 days
£848
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Finnair
Finnair
LHR
05:55
SEA
15:30
9h 35m
nonstop
SEA
15:15
LHR
00:30
9h 15m
nonstop
Depart: Sat 15 Aug 2015 Return: Tue 25 Aug 2015 Trip spans 11 days
£1012
Select
SAS
SAS
LHR
13:30
SEA
00:00
34h 30m
2 stops
SEA
02:00
LHR
01:05
23h 05m
2 stops
Depart: Sat 11 Jul 2015 Return: Thu 13 Aug 2015 Trip spans 34 days
£1060
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LOT Polish Air
LOT Polish Air
LHR
02:30
SEA
05:06
26h 36m
2 stops
SEA
09:56
LHR
05:00
19h 04m
2 stops
Depart: Fri 14 Aug 2015 Return: Wed 26 Aug 2015 Trip spans 13 days
£1187
Select
Air France
Air France
LHR
09:05
SEA
19:20
10h 15m
nonstop
SEA
15:20
LHR
01:00
9h 40m
nonstop
Depart: Tue 28 Jul 2015 Return: Sat 15 Aug 2015 Trip spans 19 days
£1226
Select
Lufthansa
Lufthansa
LHR
11:20
SEA
05:10
17h 50m
1 stop
SEA
02:44
LHR
17:55
15h 11m
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 2 Jul - 22 Oct
53 09:40 11:15 3 Jul - 21 Aug
53 09:55 11:30 27 Jun - 24 Oct
49 15:30 17:05 27 Jun - 24 Oct
Airports
Origin

London
£502
Destination

Seattle
£502