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Find Deals on Flights from London to Seattle/Tacoma Intl (LON - SEA)

Flexible dates? Here are the best fares found in the past 48 hours...

Book cheap flights from London to Seattle/Tacoma Intl

(Round-trip)
Depart: Tue 19 Jan 2016 Return: Wed 17 Feb 2016 Trip spans 30 days
£496
Select
Icelandair
Icelandair
LGW
07:30
SEA
19:40
12h 10m
1 stop
SEA
10:30
LGW
22:15
11h 45m
1 stop
Depart: Wed 11 Nov 2015 Return: Wed 18 Nov 2015 Trip spans 8 days
£503
Select
Icelandair
Icelandair
LHR
08:00
SEA
19:40
11h 40m
1 stop
SEA
10:30
LHR
22:30
12h 00m
1 stop
Depart: Sat 26 Dec 2015 Return: Wed 6 Jan 2016 Trip spans 12 days
£583
Select
Delta
Delta
LHR
07:20
SEA
00:00
16h 40m
1 stop
SEA
08:20
LHR
23:15
14h 55m
1 stop
Depart: Fri 16 Oct 2015 Return: Thu 22 Oct 2015 Trip spans 7 days
£612
Select
Aer Lingus
Aer Lingus
LGW
05:10
SEA
02:22
21h 12m
2 stops
SEA
08:20
LGW
02:25
18h 05m
2 stops
Depart: Mon 31 Aug 2015 Return: Mon 21 Sep 2015 Trip spans 22 days
£634
Select
American Airlines
American Airlines
LHR
10:00
SEA
02:20
16h 20m
1 stop
SEA
09:30
LHR
02:20
16h 50m
1 stop
Depart: Thu 17 Sep 2015 Return: Tue 29 Sep 2015 Trip spans 13 days
£637
Select
Aer Lingus
Aer Lingus
LHR
08:00
SEA
02:15
18h 15m
2 stops
SEA
06:53
LHR
23:10
16h 17m
2 stops
Depart: Fri 25 Dec 2015 Return: Wed 6 Jan 2016 Trip spans 13 days
£679
Select
Finnair
Finnair
LHR
09:15
SEA
19:05
9h 50m
nonstop
SEA
02:00
LHR
17:20
15h 20m
1 stop
Depart: Fri 21 Aug 2015 Return: Wed 2 Sep 2015 Trip spans 13 days
£782
Select
Virgin Atlantic
Virgin Atlantic
LHR
09:05
SEA
19:20
10h 15m
nonstop
SEA
12:34
LHR
04:50
16h 16m
1 stop
Depart: Sun 16 Aug 2015 Return: Wed 26 Aug 2015 Trip spans 11 days
£834
Select
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 25 Aug 2015 Return: Fri 25 Sep 2015 Trip spans 32 days
£856
Select
KLM Royal Dutch
KLM Royal Dutch
LCY
05:25
SEA
19:41
14h 16m
1 stop
SEA
09:43
LCY
23:05
13h 22m
1 stop
Depart: Tue 1 Sep 2015 Return: Tue 15 Sep 2015 Trip spans 15 days
£857
Select
Air France
Air France
LHR
09:05
SEA
19:33
10h 28m
nonstop
SEA
15:10
LHR
01:00
9h 50m
nonstop
Depart: Sat 11 Jul 2015 Return: Thu 13 Aug 2015 Trip spans 34 days
£1063
Select
LOT Polish Air
LOT Polish Air
LHR
02:30
SEA
01:44
23h 14m
2 stops
SEA
09:56
LHR
05:00
19h 04m
2 stops
Depart: Sat 25 Jul 2015 Return: Sun 2 Aug 2015 Trip spans 9 days
£1130
Select
Delta
Delta
LGW
07:20
SEA
03:19
19h 59m
2 stops
SEA
11:05
LGW
22:25
35h 20m
1 stop
Direct flights LON - 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
only £503
only £856
only £496
Destination

Seattle
£496