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

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Seattle/Tacoma Intl to London

(Round-trip)
Depart: Sat Feb 28 2015 Return: Sun Mar 1 2015 Trip spans 2 days
Air Canada
Air Canada
SEA
3:00a
LHR
12:05a
21h 05m
2 stops
LHR
1:00p
SEA
12:21a
35h 21m
1 stop
Depart: Fri May 1 2015 Return: Mon May 11 2015 Trip spans 11 days
Multiple Airlines
Multiple Airlines
SEA
3:15a
LGW
11:20a
32h 05m
2 stops
LGW
12:15p
SEA
11:30p
35h 15m
2 stops
Depart: Thu Apr 23 2015 Return: Mon Apr 27 2015 Trip spans 5 days
Icelandair
Icelandair
SEA
12:30p
LGW
11:45p
11h 15m
1 stop
LGW
9:10a
SEA
9:45p
12h 35m
1 stop
Depart: Wed Apr 15 2015 Return: Tue May 5 2015 Trip spans 21 days
Multiple Airlines
Multiple Airlines
SEA
12:30p
LTN
2:10a
13h 40m
1 stop
LTN
3:35a
SEA
9:45p
18h 10m
1 stop
Depart: Tue Apr 21 2015 Return: Tue Apr 28 2015 Trip spans 8 days
$1004
Select
Icelandair
Icelandair
SEA
12:30p
LHR
8:10a
19h 40m
1 stop
LHR
9:00a
SEA
9:45p
12h 45m
1 stop
Depart: Sun Feb 15 2015 Return: Mon Feb 23 2015 Trip spans 9 days
$1025
Select
Delta
Delta
SEA
4:48a
LHR
2:25a
21h 37m
1 stop
LHR
5:55a
SEA
11:31p
17h 36m
1 stop
Depart: Sun Feb 22 2015 Return: Tue Mar 10 2015 Trip spans 16 days
$1025
Select
United
United
SEA
7:05a
LHR
10:30p
15h 25m
1 stop
LHR
5:30a
SEA
2:58a
21h 28m
1 stop
Depart: Sat May 23 2015 Return: Sun May 24 2015 Trip spans 2 days
$1052
Select
Lufthansa
Lufthansa
SEA
4:05a
LHR
10:15p
18h 10m
2 stops
LHR
11:20a
SEA
4:36a
17h 16m
1 stop
Depart: Mon May 11 2015 Return: Wed May 20 2015 Trip spans 10 days
$1054
Select
Multiple Airlines
Multiple Airlines
SEA
7:15a
LHR
8:10a
24h 55m
2 stops
LHR
9:00a
SEA
1:55a
40h 55m
2 stops
Depart: Wed Feb 4 2015 Return: Thu Feb 26 2015 Trip spans 23 days
$1119
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Aeroflot
Aeroflot
SEA
5:40p
LHR
8:45p
27h 05m
2 stops
LHR
5:30p
SEA
10:31p
29h 01m
2 stops
Depart: Thu Aug 27 2015 Return: Sat Sep 5 2015 Trip spans 10 days
$1633
Select
US Airways
US Airways
SEA
8:20p
LHR
7:40p
23h 20m
1 stop
LHR
5:50a
SEA
2:52a
21h 02m
2 stops
Change your search
Direct flights SEA to LON on Delta
Flight # Depart SEA Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
37 5:19 pm 11:05 am Feb 3 - Feb 10
37 5:19 pm 11:05 am Feb 16 - Feb 25
37 6:39 pm 12:25 pm Feb 1 - Feb 12
37 6:39 pm 12:25 pm Feb 21 - Feb 28
37 6:39 pm 12:25 pm Feb 13 - Feb 19
37 6:52 pm 12:25 pm Mar 1 - Mar 7
37 7:52 pm 12:25 pm Mar 8 - Mar 17
Airports
Origin

Seattle
$787
Destination

London
only $787
only $985
only $916