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

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

Book cheap flights from Seattle/Tacoma Intl to London

(Round-trip)
Depart: Sun 1 Nov 2015 Return: Thu 12 Nov 2015 Trip spans 12 days
£610
Select
Finnair
Finnair
SEA
13:00
LHR
22:30
9h 30m
nonstop
LHR
09:15
SEA
19:05
9h 50m
nonstop
Depart: Wed 23 Sep 2015 Return: Wed 7 Oct 2015 Trip spans 15 days
£671
Select
Iberia
Iberia
SEA
01:00
LHR
20:05
19h 05m
1 stop
LHR
09:10
SEA
01:25
16h 15m
1 stop
Depart: Tue 25 Aug 2015 Return: Fri 11 Sep 2015 Trip spans 18 days
£696
Select
American Airlines
American Airlines
SEA
09:05
LHR
23:25
14h 20m
1 stop
LHR
08:25
SEA
01:17
16h 52m
1 stop
Depart: Mon 17 Aug 2015 Return: Tue 25 Aug 2015 Trip spans 9 days
£955
Select
Air Canada
Air Canada
SEA
05:50
LHR
23:50
18h 00m
1 stop
LHR
07:05
SEA
22:43
15h 38m
2 stops
Depart: Tue 18 Aug 2015 Return: Tue 25 Aug 2015 Trip spans 8 days
£955
Select
Air Canada
Air Canada
SEA
05:50
LHR
23:50
18h 00m
1 stop
LHR
07:05
SEA
22:43
15h 38m
2 stops
Depart: Sun 16 Aug 2015 Return: Tue 25 Aug 2015 Trip spans 10 days
£971
Select
Air Canada
Air Canada
SEA
05:50
LHR
21:35
15h 45m
1 stop
LHR
07:05
SEA
22:43
15h 38m
2 stops
Depart: Wed 12 Aug 2015 Return: Tue 25 Aug 2015 Trip spans 14 days
£981
Select
Air Canada
Air Canada
SEA
07:25
LHR
22:25
15h 00m
2 stops
LHR
07:05
SEA
22:43
15h 38m
2 stops
Depart: Sun 9 Aug 2015 Return: Fri 21 Aug 2015 Trip spans 13 days
£992
Select
Air Canada
Air Canada
SEA
14:15
LHR
21:35
31h 20m
1 stop
LHR
06:05
SEA
19:48
13h 43m
1 stop
Depart: Mon 10 Aug 2015 Return: Thu 20 Aug 2015 Trip spans 11 days
£993
Select
Air Canada
Air Canada
SEA
05:50
LHR
21:35
15h 45m
1 stop
LHR
06:05
SEA
19:48
13h 43m
1 stop
Depart: Fri 14 Aug 2015 Return: Tue 25 Aug 2015 Trip spans 12 days
£999
Select
Air Canada
Air Canada
SEA
10:30
LHR
23:40
13h 10m
1 stop
LHR
07:05
SEA
22:43
15h 38m
2 stops
Depart: Thu 13 Aug 2015 Return: Tue 25 Aug 2015 Trip spans 13 days
£1001
Select
Air Canada
Air Canada
SEA
07:25
LHR
22:25
15h 00m
2 stops
LHR
07:05
SEA
22:43
15h 38m
2 stops
Depart: Fri 9 Oct 2015 Return: Sat 10 Oct 2015 Trip spans 2 days
£1031
Select
Austrian Airlines
Austrian Airlines
SEA
02:45
LHR
02:20
23h 35m
2 stops
LHR
15:25
SEA
23:30
32h 05m
2 stops
Depart: Sat 15 Aug 2015 Return: Thu 20 Aug 2015 Trip spans 6 days
£1039
Select
Air Canada
Air Canada
SEA
07:25
LHR
22:25
15h 00m
2 stops
LHR
07:05
SEA
22:43
15h 38m
2 stops
Depart: Fri 16 Oct 2015 Return: Sat 17 Oct 2015 Trip spans 2 days
£1063
Select
Austrian Airlines
Austrian Airlines
SEA
02:45
LHR
02:20
23h 35m
2 stops
LHR
15:25
SEA
00:20
32h 55m
2 stops
Depart: Mon 24 Aug 2015 Return: Wed 26 Aug 2015 Trip spans 3 days
£1346
Select
Brussels Airlines
Brussels Airlines
SEA
03:55
LHR
09:35
29h 40m
2 stops
LHR
13:50
SEA
22:35
32h 45m
2 stops
Depart: Wed 15 Jul 2015 Return: Sun 19 Jul 2015 Trip spans 5 days
£1552
Select
British Airways
British Airways
SEA
15:15
LHR
00:30
9h 15m
nonstop
LHR
05:55
SEA
15:30
9h 35m
nonstop
Direct flights SEA - LON on British Airways
Flight No. Departure SEA Arrival LHR Mon Tue Wed Thu Fri Sat Sun Valid between
52 13:40 06:55 2 Jul - 22 Oct
52 14:00 07:10 27 Jun - 22 Aug
52 14:00 07:15 28 Jun - 18 Oct
48 19:15 12:30 27 Jun - 23 Oct
Airports
Origin

Seattle
£610
Destination

London
£610