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Find Flight Deals 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: Thu Oct 1 2015 Return: Mon Oct 12 2015 Trip spans 12 days
Icelandair
Icelandair
LGW
9:10a
SEA
9:45p
12h 35m
1 stop
SEA
12:30p
LGW
11:45p
11h 15m
1 stop
Depart: Sat Oct 10 2015 Return: Sun Oct 11 2015 Trip spans 2 days
Icelandair
Icelandair
LHR
9:00a
SEA
9:45p
12h 45m
1 stop
SEA
12:30p
LHR
11:45p
11h 15m
1 stop
Depart: Tue Apr 28 2015 Return: Wed May 27 2015 Trip spans 30 days
Aeroflot
Aeroflot
LHR
9:25a
SEA
2:14a
40h 49m
2 stops
SEA
3:10a
LHR
8:00p
64h 50m
2 stops
Depart: Sun Sep 13 2015 Return: Mon Sep 28 2015 Trip spans 16 days
American Airlines
American Airlines
LHR
10:00a
SEA
4:04a
18h 04m
1 stop
SEA
10:45a
LHR
2:20a
15h 35m
1 stop
Depart: Thu Sep 10 2015 Return: Thu Sep 24 2015 Trip spans 15 days
$1067
Select
Delta
Delta
LHR
9:05a
SEA
7:33p
10h 28m
nonstop
SEA
8:55a
LHR
3:50a
18h 55m
1 stop
Depart: Fri Sep 4 2015 Return: Mon Sep 14 2015 Trip spans 11 days
$1100
Select
Virgin Atlantic
Virgin Atlantic
LHR
9:05a
SEA
7:33p
10h 28m
nonstop
SEA
12:30p
LHR
3:50a
15h 20m
1 stop
Depart: Tue Jun 9 2015 Return: Tue Jul 14 2015 Trip spans 36 days
$1121
Select
SAS
SAS
LHR
3:05a
SEA
11:59p
20h 54m
2 stops
SEA
2:00a
LHR
5:00a
27h 00m
2 stops
Depart: Wed Jun 3 2015 Return: Wed Jun 10 2015 Trip spans 8 days
$1243
Select
Air Canada
Air Canada
LHR
4:30a
SEA
11:17p
18h 47m
1 stop
SEA
7:15a
LHR
11:05p
15h 50m
1 stop
Depart: Mon Jun 1 2015 Return: Thu Jul 23 2015 Trip spans 53 days
$1265
Select
Air Europa
Air Europa
LGW
6:10a
SEA
2:02a
43h 52m
2 stops
SEA
3:00a
LGW
4:15a
25h 15m
2 stops
Depart: Mon Apr 27 2015 Return: Mon May 4 2015 Trip spans 8 days
$1369
Select
Air France
Air France
LHR
9:05a
SEA
7:23p
10h 18m
nonstop
SEA
3:13p
LHR
1:00a
9h 47m
nonstop
Depart: Fri May 22 2015 Return: Tue Jun 2 2015 Trip spans 12 days
$1372
Select
US Airways
US Airways
LHR
7:00a
SEA
12:49a
17h 49m
1 stop
SEA
7:10a
LHR
11:25p
16h 15m
1 stop
Depart: Sat Aug 8 2015 Return: Mon Aug 10 2015 Trip spans 3 days
$1513
Select
United
United
LHR
2:00p
SEA
2:03p
24h 03m
1 stop
SEA
2:30a
LHR
11:40p
21h 10m
1 stop
Depart: Tue Jul 7 2015 Return: Wed Jul 22 2015 Trip spans 16 days
$1587
Select
LOT Polish Air
LOT Polish Air
LHR
6:15a
SEA
4:36a
22h 21m
2 stops
SEA
9:45a
LHR
5:00a
19h 15m
2 stops
Depart: Mon Jun 29 2015 Return: Mon Jul 6 2015 Trip spans 8 days
$1809
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
9:05a
SEA
7:11p
10h 06m
nonstop
SEA
3:20p
LHR
1:00a
9h 40m
nonstop
Depart: Thu Apr 23 2015 Return: Fri Apr 24 2015 Trip spans 2 days
$3047
Select
Finnair
Finnair
LHR
11:30a
SEA
9:05p
9h 35m
nonstop
SEA
10:00a
LHR
7:10p
9h 10m
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 3:18 pm May 1 - Jun 3
36 1:05 pm 3:23 pm Apr 7 - Apr 30
Airports
Origin

London
only $785
only $759
Destination

Seattle
$759