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Find flight deals 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: Mon 26 Oct 2015 Return: Mon 2 Nov 2015 Trip spans 8 days
£506
Select
Icelandair
Icelandair
LHR
16:35
SEA
20:40
28h 05m
1 stop
SEA
10:30
LHR
22:30
12h 00m
1 stop
Depart: Wed 13 May 2015 Return: Wed 20 May 2015 Trip spans 8 days
£593
Select
United
United
LHR
06:35
SEA
03:01
20h 26m
2 stops
SEA
08:00
LHR
00:20
16h 20m
1 stop
Depart: Mon 4 May 2015 Return: Sat 9 May 2015 Trip spans 6 days
£629
Select
Aeroflot
Aeroflot
LHR
09:25
SEA
02:02
40h 37m
2 stops
SEA
17:15
LHR
23:00
29h 45m
2 stops
Depart: Mon 21 Sep 2015 Return: Sun 4 Oct 2015 Trip spans 14 days
£630
Select
Icelandair
Icelandair
LGW
09:10
SEA
21:55
12h 45m
1 stop
SEA
12:30
LGW
23:45
11h 15m
1 stop
Depart: Fri 18 Sep 2015 Return: Mon 28 Sep 2015 Trip spans 11 days
£660
Select
American Airlines
American Airlines
LHR
08:50
SEA
01:25
16h 35m
1 stop
SEA
09:30
LHR
02:20
16h 50m
1 stop
Depart: Thu 4 Jun 2015 Return: Sun 14 Jun 2015 Trip spans 11 days
£662
Select
Delta
Delta
LHR
09:00
SEA
01:11
16h 11m
1 stop
SEA
17:50
LHR
08:10
14h 20m
1 stop
Depart: Fri 23 Oct 2015 Return: Fri 30 Oct 2015 Trip spans 8 days
£675
Select
SAS
SAS
LHR
05:50
SEA
02:03
20h 13m
2 stops
SEA
06:27
LHR
05:00
22h 33m
2 stops
Depart: Tue 12 May 2015 Return: Fri 22 May 2015 Trip spans 11 days
£716
Select
Virgin Atlantic
Virgin Atlantic
LHR
09:05
SEA
19:18
10h 13m
nonstop
SEA
13:15
LHR
03:50
14h 35m
1 stop
Depart: Thu 11 Jun 2015 Return: Tue 23 Jun 2015 Trip spans 13 days
£787
Select
Air Canada
Air Canada
LHR
04:30
SEA
22:46
18h 16m
2 stops
SEA
07:15
LHR
20:35
13h 20m
1 stop
Depart: Tue 28 Apr 2015 Return: Tue 26 May 2015 Trip spans 29 days
£953
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
02:30
SEA
15:19
12h 49m
1 stop
SEA
07:00
LHR
22:40
15h 40m
1 stop
Depart: Sun 19 Jul 2015 Return: Wed 5 Aug 2015 Trip spans 18 days
£1058
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: Thu 6 Aug 2015 Return: Mon 24 Aug 2015 Trip spans 19 days
£1071
Select
Lufthansa
Lufthansa
LHR
02:30
SEA
15:30
13h 00m
1 stop
SEA
10:30
LHR
23:40
13h 10m
1 stop
Depart: Thu 25 Jun 2015 Return: Mon 29 Jun 2015 Trip spans 5 days
£1176
Select
British Airways
British Airways
LHR
04:50
SEA
14:25
9h 35m
nonstop
SEA
15:15
LHR
00:30
9h 15m
nonstop
Depart: Mon 13 Jul 2015 Return: Mon 27 Jul 2015 Trip spans 15 days
£1180
Select
Lufthansa
Lufthansa
LCY
05:10
SEA
05:10
24h 00m
2 stops
SEA
09:40
LCY
04:20
18h 40m
1 stop
Depart: Sun 28 Jun 2015 Return: Sun 12 Jul 2015 Trip spans 15 days
£1207
Select
Iberia
Iberia
LHR
05:55
SEA
15:30
9h 35m
nonstop
SEA
10:00
LHR
19:15
9h 15m
nonstop
Depart: Mon 20 Jul 2015 Return: Mon 27 Jul 2015 Trip spans 8 days
£1215
Select
Air France
Air France
LHR
09:05
SEA
19:20
10h 15m
nonstop
SEA
15:20
LHR
01:00
9h 40m
nonstop
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 30 Apr - 22 Oct
53 09:40 11:15 1 May - 23 Oct
53 09:55 11:30 25 Apr - 24 Oct
49 15:30 17:05 25 Apr - 24 Oct
Airports
Origin

London
only £506
only £1180
only £630
Destination

Seattle
£506