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

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

Book cheap flights from London to Seattle/Tacoma Intl

(Round-trip)
Depart: Sun Nov 1 2015 Return: Sun Nov 8 2015 Trip spans 8 days
Icelandair
Icelandair
LGW
3:55p
SEA
7:40p
27h 45m
1 stop
SEA
10:30a
LGW
10:15p
11h 45m
1 stop
Depart: Fri Nov 20 2015 Return: Tue Dec 1 2015 Trip spans 12 days
Icelandair
Icelandair
LHR
8:00a
SEA
7:40p
11h 40m
1 stop
SEA
10:30a
LHR
10:30p
12h 00m
1 stop
Depart: Wed Dec 2 2015 Return: Sun Dec 6 2015 Trip spans 5 days
Icelandair
Icelandair
LHR
8:00a
SEA
7:40p
11h 40m
1 stop
SEA
10:30a
LHR
10:30p
12h 00m
1 stop
Depart: Wed Nov 25 2015 Return: Sun Nov 29 2015 Trip spans 5 days
Icelandair
Icelandair
LHR
8:00a
SEA
7:40p
11h 40m
1 stop
SEA
10:30a
LHR
6:30a
20h 00m
1 stop
Depart: Thu Dec 10 2015 Return: Tue Jan 12 2016 Trip spans 34 days
Delta
Delta
LHR
8:00a
SEA
6:51p
10h 51m
nonstop
SEA
5:55a
LHR
2:25a
20h 30m
1 stop
Depart: Thu Oct 8 2015 Return: Sun Oct 18 2015 Trip spans 11 days
Icelandair
Icelandair
LHR
5:10p
SEA
9:55p
28h 45m
1 stop
SEA
12:30p
LHR
11:45p
11h 15m
1 stop
Depart: Fri Oct 9 2015 Return: Sun Oct 11 2015 Trip spans 3 days
Icelandair
Icelandair
LHR
9:00a
SEA
9:55p
12h 55m
1 stop
SEA
12:30p
LHR
11:45p
11h 15m
1 stop
Depart: Fri Oct 2 2015 Return: Sun Oct 11 2015 Trip spans 10 days
Icelandair
Icelandair
LGW
9:10a
SEA
9:55p
12h 45m
1 stop
SEA
12:30p
LGW
11:45p
11h 15m
1 stop
Depart: Wed Jan 6 2016 Return: Wed Jan 13 2016 Trip spans 8 days
Icelandair
Icelandair
LHR
8:00a
SEA
7:40p
11h 40m
1 stop
SEA
10:30a
LHR
6:30a
20h 00m
1 stop
Depart: Thu Oct 1 2015 Return: Sun Oct 11 2015 Trip spans 11 days
Icelandair
Icelandair
LHR
5:10p
SEA
9:55p
28h 45m
1 stop
SEA
12:30p
LHR
8:10a
19h 40m
1 stop
Depart: Wed Aug 26 2015 Return: Wed Oct 21 2015 Trip spans 57 days
$1003
Select
American Airlines
American Airlines
LHR
10:00a
SEA
2:20a
16h 20m
1 stop
SEA
8:00a
LHR
2:20a
18h 20m
1 stop
Depart: Wed Aug 19 2015 Return: Wed Sep 16 2015 Trip spans 29 days
$1004
Select
Delta
Delta
LHR
9:05a
SEA
7:20p
10h 15m
nonstop
SEA
12:34p
LHR
3:50a
15h 16m
1 stop
Depart: Tue Sep 1 2015 Return: Wed Sep 16 2015 Trip spans 16 days
$1004
Select
Delta
Delta
LHR
9:05a
SEA
7:33p
10h 28m
nonstop
SEA
10:36a
LHR
3:50a
17h 14m
1 stop
Depart: Wed Sep 2 2015 Return: Wed Sep 16 2015 Trip spans 15 days
$1004
Select
Delta
Delta
LHR
9:05a
SEA
7:33p
10h 28m
nonstop
SEA
12:34p
LHR
3:50a
15h 16m
1 stop
Depart: Thu Sep 3 2015 Return: Wed Sep 16 2015 Trip spans 14 days
$1004
Select
Delta
Delta
LHR
9:05a
SEA
7:33p
10h 28m
nonstop
SEA
8:51a
LHR
3:50a
18h 59m
1 stop
Depart: Mon Sep 7 2015 Return: Wed Sep 16 2015 Trip spans 10 days
$1004
Select
Delta
Delta
LHR
9:05a
SEA
7:33p
10h 28m
nonstop
SEA
6:59a
LHR
3:50a
20h 51m
1 stop
Depart: Thu Aug 20 2015 Return: Sun Sep 6 2015 Trip spans 18 days
$1006
Select
Delta
Delta
LHR
9:05a
SEA
7:20p
10h 15m
nonstop
SEA
5:12a
LHR
3:50a
22h 38m
1 stop
Depart: Mon Aug 17 2015 Return: Thu Sep 3 2015 Trip spans 18 days
$1299
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
2:30a
SEA
3:09p
12h 39m
1 stop
SEA
9:43a
LHR
10:45p
13h 02m
1 stop
Depart: Tue Jul 7 2015 Return: Mon Aug 17 2015 Trip spans 42 days
$1657
Select
LOT Polish Air
LOT Polish Air
LHR
2:30a
SEA
2:33a
24h 03m
2 stops
SEA
9:56a
LHR
5:00a
19h 04m
2 stops
Depart: Thu Aug 13 2015 Return: Thu Sep 17 2015 Trip spans 36 days
$1847
Select
Air France
Air France
LHR
9:05a
SEA
7:20p
10h 15m
nonstop
SEA
3:10p
LHR
1:00a
9h 50m
nonstop
Direct flights LON to SEA on Delta
Flight # Depart LHR Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
36 1:05 pm 3:20 pm Jul 1 - Aug 31
Airports
Origin

London
only $814
only $788
Destination

Seattle
$788