Browse Origins:
Browse Destinations:

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: Tue 24 Mar 2015 Return: Mon 30 Mar 2015 Trip spans 7 days
£523
Select
Iberia
Iberia
LHR
05:55
SEA
02:25
20h 30m
1 stop
SEA
01:00
LHR
18:35
17h 35m
1 stop
Depart: Thu 19 Mar 2015 Return: Sun 22 Mar 2015 Trip spans 4 days
£558
Select
Delta
Delta
LHR
11:00
SEA
12:59
25h 59m
1 stop
SEA
19:55
LHR
19:55
24h 00m
1 stop
Depart: Sat 14 Mar 2015 Return: Thu 19 Mar 2015 Trip spans 6 days
£564
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
09:00
SEA
19:26
10h 26m
nonstop
SEA
15:52
LHR
01:25
9h 33m
nonstop
Depart: Thu 23 Apr 2015 Return: Fri 15 May 2015 Trip spans 23 days
£568
Select
Multiple Airlines
Multiple Airlines
LGW
08:25
SEA
21:26
13h 01m
1 stop
SEA
03:25
LGW
20:35
17h 10m
1 stop
Depart: Thu 14 May 2015 Return: Mon 25 May 2015 Trip spans 12 days
£575
Select
Multiple Airlines
Multiple Airlines
LHR
12:15
SEA
14:15
26h 00m
1 stop
SEA
07:00
LHR
23:25
16h 25m
1 stop
Depart: Mon 16 Mar 2015 Return: Sun 22 Mar 2015 Trip spans 7 days
£575
Select
US Airways
US Airways
LHR
07:40
SEA
00:00
16h 20m
1 stop
SEA
09:25
LHR
23:30
14h 05m
1 stop
Depart: Fri 20 Mar 2015 Return: Mon 6 Apr 2015 Trip spans 18 days
£584
Select
Air France
Air France
LHR
09:00
SEA
19:26
10h 26m
nonstop
SEA
15:10
LHR
01:00
9h 50m
nonstop
Depart: Sat 7 Mar 2015 Return: Mon 9 Mar 2015 Trip spans 2 days
£589
Select
Virgin Atlantic
Virgin Atlantic
LHR
05:55
SEA
23:42
17h 47m
1 stop
SEA
05:00
LHR
21:25
16h 25m
1 stop
Depart: Thu 12 Mar 2015 Return: Sun 12 Apr 2015 Trip spans 32 days
£596
Select
United
United
LHR
03:30
SEA
00:40
21h 10m
2 stops
SEA
07:29
LHR
00:20
16h 51m
1 stop
Depart: Mon 7 Sep 2015 Return: Mon 28 Sep 2015 Trip spans 22 days
£613
Select
Icelandair
Icelandair
LGW
09:10
SEA
21:45
12h 35m
1 stop
SEA
12:30
LGW
23:45
11h 15m
1 stop
Depart: Mon 18 May 2015 Return: Mon 25 May 2015 Trip spans 8 days
£631
Select
Aer Lingus
Aer Lingus
LGW
06:40
SEA
05:00
22h 20m
2 stops
SEA
02:40
LGW
00:10
21h 30m
2 stops
Depart: Sun 30 Aug 2015 Return: Sun 13 Sep 2015 Trip spans 15 days
£633
Select
American Airlines
American Airlines
LHR
10:00
SEA
02:04
16h 04m
1 stop
SEA
07:00
LHR
02:20
19h 20m
1 stop
Depart: Sat 5 Sep 2015 Return: Mon 21 Sep 2015 Trip spans 17 days
£684
Select
SAS
SAS
LHR
14:00
SEA
03:09
37h 09m
2 stops
SEA
08:20
LHR
04:00
19h 40m
2 stops
Depart: Wed 2 Sep 2015 Return: Tue 15 Sep 2015 Trip spans 14 days
£725
Select
Icelandair
Icelandair
LHR
09:00
SEA
21:45
12h 45m
1 stop
SEA
12:15
LHR
08:10
19h 55m
1 stop
Depart: Thu 30 Jul 2015 Return: Sun 16 Aug 2015 Trip spans 18 days
£978
Select
Aeroflot
Aeroflot
LHR
18:45
SEA
04:30
33h 45m
2 stops
SEA
19:55
LHR
09:25
37h 30m
2 stops
Depart: Sun 12 Jul 2015 Return: Tue 21 Jul 2015 Trip spans 10 days
£1093
Select
LOT Polish Air
LOT Polish Air
LHR
06:15
SEA
04:36
22h 21m
2 stops
SEA
06:27
LHR
05:00
22h 33m
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 2 Apr - 22 Oct
53 09:20 12:05 8 Mar - 27 Mar
53 09:40 11:15 3 Apr - 23 Oct
53 09:55 11:30 29 Mar - 24 Oct
49 14:15 17:05 8 Mar - 28 Mar
49 15:30 17:05 30 Mar - 18 Oct
49 15:30 17:05 29 Mar - 29 Mar
Airports
Origin

London
only £522
only £568
Destination

Seattle
£522