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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: Tue Oct 20 2015 Return: Wed Nov 4 2015 Trip spans 16 days
Icelandair
Icelandair
SEA
12:30p
LHR
11:45p
11h 15m
1 stop
LHR
8:00a
SEA
7:40p
11h 40m
1 stop
Depart: Sat Oct 3 2015 Return: Sun Oct 18 2015 Trip spans 16 days
Icelandair
Icelandair
SEA
12:15p
LGW
11:45p
11h 30m
1 stop
LGW
5:10p
SEA
9:45p
28h 35m
1 stop
Depart: Thu Apr 23 2015 Return: Mon Apr 27 2015 Trip spans 5 days
$1077
Select
Aeroflot
Aeroflot
SEA
3:20a
LHR
8:00p
40h 40m
2 stops
LHR
9:25a
SEA
2:14a
40h 49m
2 stops
Depart: Thu May 7 2015 Return: Sun May 17 2015 Trip spans 11 days
$1216
Select
US Airways
US Airways
SEA
3:00a
LHR
6:50p
15h 50m
1 stop
LHR
8:50a
SEA
1:44a
16h 54m
1 stop
Depart: Wed May 13 2015 Return: Mon May 25 2015 Trip spans 13 days
$1227
Select
American Airlines
American Airlines
SEA
1:00a
LHR
9:00p
20h 00m
1 stop
LHR
1:15p
SEA
2:05p
24h 50m
1 stop
Depart: Sun May 3 2015 Return: Mon Jun 1 2015 Trip spans 30 days
$1235
Select
Virgin Atlantic
Virgin Atlantic
SEA
3:13p
LHR
1:00a
9h 47m
nonstop
LHR
9:05a
SEA
7:18p
10h 13m
nonstop
Depart: Tue Apr 28 2015 Return: Mon May 4 2015 Trip spans 7 days
$1256
Select
Air Europa
Air Europa
SEA
3:20a
LGW
4:20a
25h 00m
2 stops
LGW
1:15p
SEA
2:02a
36h 47m
2 stops
Depart: Tue May 26 2015 Return: Tue Jun 16 2015 Trip spans 22 days
$1285
Select
United
United
SEA
6:25a
LHR
11:05p
16h 40m
2 stops
LHR
11:00a
SEA
5:26a
18h 26m
2 stops
Depart: Mon Jun 1 2015 Return: Sun Jun 14 2015 Trip spans 14 days
$1356
Select
Major Airline
Major Airline
SEA
3:15p
LHR
12:30a
9h 15m
nonstop
LHR
5:10p
SEA
1:06a
31h 56m
2 stops
Depart: Wed Jun 10 2015 Return: Wed Jun 24 2015 Trip spans 15 days
$1375
Select
British Airways
British Airways
SEA
4:20a
LHR
3:00a
22h 40m
2 stops
LHR
11:30a
SEA
9:05p
9h 35m
nonstop
Depart: Tue Jun 16 2015 Return: Mon Jul 13 2015 Trip spans 28 days
$1419
Select
Air Canada
Air Canada
SEA
2:15p
LHR
9:35p
31h 20m
1 stop
LHR
12:15p
SEA
12:43p
24h 28m
2 stops
Depart: Sun Apr 26 2015 Return: Mon May 4 2015 Trip spans 9 days
$1440
Select
Delta
Delta
SEA
6:50a
LHR
12:20a
17h 30m
1 stop
LHR
11:45a
SEA
1:05p
25h 20m
1 stop
Direct flights SEA to LON on Delta
Flight # Depart SEA Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
37 7:10 pm 1:00 pm Apr 7 - Apr 30
37 7:13 pm 1:00 pm May 1 - Jun 3
Airports
Origin

Seattle
$817
Destination

London
only $817
only $956