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

Depart
Return
1 adult
Adults
18+
Youths
12-17
Children
2-11
Seat infants
under 2
Lap infants
under 2
The price shown for each flight will be the average for all passengers, including any infants.
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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: Thu 18 Feb 2016 Return: Mon 29 Feb 2016 Trip spans 12 days
£408
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 27 Jan 2016 Return: Wed 3 Feb 2016 Trip spans 8 days
£428
Select
Icelandair
Icelandair
LHR
08:00
SEA
19:40
11h 40m
1 stop
SEA
10:30
LHR
22:30
12h 00m
1 stop
Depart: Mon 26 Oct 2015 Return: Wed 25 Nov 2015 Trip spans 31 days
£496
Select
Finnair
Finnair
LHR
04:55
SEA
14:45
9h 50m
nonstop
SEA
13:00
LHR
22:30
9h 30m
nonstop
Depart: Thu 12 Nov 2015 Return: Mon 16 Nov 2015 Trip spans 5 days
£499
Select
Air France
Air France
LHR
04:40
SEA
18:33
13h 53m
1 stop
SEA
08:15
LHR
21:35
13h 20m
1 stop
Depart: Mon 7 Dec 2015 Return: Thu 24 Dec 2015 Trip spans 18 days
£499
Select
KLM
KLM
LHR
01:30
SEA
14:37
13h 07m
1 stop
SEA
08:36
LHR
07:50
23h 14m
1 stop
Depart: Tue 20 Oct 2015 Return: Wed 4 Nov 2015 Trip spans 16 days
£502
Select
Virgin Atlantic
Virgin Atlantic
LGW
07:20
SEA
22:39
15h 19m
1 stop
SEA
06:00
LGW
21:35
15h 35m
1 stop
Depart: Wed 21 Oct 2015 Return: Mon 26 Oct 2015 Trip spans 6 days
£502
Select
Iberia
Iberia
LHR
03:30
SEA
23:42
20h 12m
2 stops
SEA
03:00
LHR
19:50
16h 50m
1 stop
Depart: Fri 6 Nov 2015 Return: Sun 8 Nov 2015 Trip spans 3 days
£505
Select
Virgin Atlantic
Virgin Atlantic
LHR
05:45
SEA
18:55
37h 10m
1 stop
SEA
03:57
LHR
23:00
19h 03m
1 stop
Depart: Sat 27 Feb 2016 Return: Thu 10 Mar 2016 Trip spans 13 days
£509
Select
British Airways
British Airways
LHR
03:55
SEA
13:45
9h 50m
nonstop
SEA
13:00
LHR
22:30
9h 30m
nonstop
Depart: Fri 4 Dec 2015 Return: Sun 13 Dec 2015 Trip spans 10 days
£517
Select
SWISS
SWISS
LHR
01:00
SEA
00:29
23h 29m
2 stops
SEA
07:50
LHR
08:25
24h 35m
1 stop
Depart: Sun 29 Nov 2015 Return: Tue 22 Dec 2015 Trip spans 24 days
£522
Select
Delta
Delta
LHR
09:05
SEA
14:51
29h 46m
1 stop
SEA
07:45
LHR
03:00
19h 15m
1 stop
Depart: Mon 19 Oct 2015 Return: Wed 28 Oct 2015 Trip spans 10 days
£535
Select
Lufthansa
Lufthansa
LHR
15:30
SEA
15:30
24h 00m
1 stop
SEA
12:10
LHR
00:50
12h 40m
1 stop
Depart: Sat 24 Oct 2015 Return: Sat 31 Oct 2015 Trip spans 8 days
£539
Select
Air Canada
Air Canada
LHR
10:10
SEA
22:46
12h 36m
1 stop
SEA
15:00
LHR
23:15
33h 15m
1 stop
Depart: Wed 14 Oct 2015 Return: Wed 28 Oct 2015 Trip spans 15 days
£676
Select
American Airlines
American Airlines
LHR
10:00
SEA
02:25
16h 25m
1 stop
SEA
09:30
LHR
00:30
15h 00m
1 stop
Depart: Fri 16 Oct 2015 Return: Mon 26 Oct 2015 Trip spans 11 days
£683
Select
Aer Lingus
Aer Lingus
LHR
04:50
SEA
22:40
17h 50m
2 stops
SEA
02:47
LHR
21:05
18h 18m
2 stops
Depart: Sat 2 Jan 2016 Return: Mon 4 Jan 2016 Trip spans 3 days
£730
Select
United
United
LHR
03:40
SEA
23:25
19h 45m
2 stops
SEA
11:20
LHR
07:40
20h 20m
1 stop
Depart: Thu 17 Sep 2015 Return: Tue 22 Sep 2015 Trip spans 6 days
£739
Select
Aer Lingus
Aer Lingus
LGW
05:10
SEA
02:24
21h 14m
2 stops
SEA
19:18
LGW
05:50
34h 32m
2 stops
Depart: Sun 4 Oct 2015 Return: Sun 18 Oct 2015 Trip spans 15 days
£786
Select
Aeroflot
Aeroflot
LHR
09:25
SEA
02:02
40h 37m
2 stops
SEA
18:40
LHR
00:05
53h 25m
2 stops
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 27 Aug - 15 Oct
53 09:40 11:15 4 Sep - 16 Oct
53 09:55 11:30 29 Aug - 11 Oct
49 15:30 17:05 27 Aug - 16 Oct
Airports
Origin

London
only £428
only £408
Destination

Seattle
£408