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

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

Book cheap flights from Seattle/Tacoma Intl to London Heathrow

(Round-trip)
Depart: Tue Sep 29 2015 Return: Thu Nov 12 2015 Trip spans 45 days
Icelandair
Icelandair
SEA
12:15p
LHR
11:45p
11h 30m
1 stop
LHR
8:00a
SEA
7:40p
11h 40m
1 stop
Depart: Tue Mar 31 2015 Return: Mon Apr 6 2015 Trip spans 7 days
Delta
Delta
SEA
12:29p
LHR
3:50a
15h 21m
1 stop
LHR
11:45a
SEA
1:48p
26h 03m
1 stop
Depart: Thu Mar 26 2015 Return: Wed Apr 8 2015 Trip spans 14 days
United
United
SEA
5:13a
LHR
12:30a
19h 17m
2 stops
LHR
6:35a
SEA
2:43a
20h 08m
2 stops
Depart: Fri May 1 2015 Return: Fri May 8 2015 Trip spans 8 days
$1107
Select
British Airways
British Airways
SEA
7:50a
LHR
11:15p
15h 25m
1 stop
LHR
5:40a
SEA
3:15p
9h 35m
nonstop
Depart: Mon May 4 2015 Return: Mon May 11 2015 Trip spans 8 days
$1108
Select
Multiple Airlines
Multiple Airlines
SEA
3:25p
LHR
4:40a
13h 15m
1 stop
LHR
5:30a
SEA
9:20p
15h 50m
1 stop
Depart: Fri Apr 3 2015 Return: Thu Apr 9 2015 Trip spans 7 days
$1142
Select
Air Canada
Air Canada
SEA
8:35a
LHR
11:50p
15h 15m
1 stop
LHR
10:10a
SEA
10:30p
12h 20m
1 stop
Depart: Sat May 16 2015 Return: Sat May 30 2015 Trip spans 15 days
$1162
Select
Air France
Air France
SEA
3:13p
LHR
1:00a
9h 47m
nonstop
LHR
9:05a
SEA
7:18p
10h 13m
nonstop
Depart: Sun Apr 26 2015 Return: Thu Apr 30 2015 Trip spans 5 days
$1171
Select
American Airlines
American Airlines
SEA
4:15a
LHR
12:25a
20h 10m
1 stop
LHR
8:15a
SEA
2:20a
18h 05m
1 stop
Depart: Tue May 26 2015 Return: Thu Jun 11 2015 Trip spans 17 days
$1256
Select
Lufthansa
Lufthansa
SEA
4:04a
LHR
10:15p
18h 11m
2 stops
LHR
6:05a
SEA
10:46p
16h 41m
1 stop
Depart: Mon Jun 22 2015 Return: Sat Aug 1 2015 Trip spans 41 days
$1329
Select
US Airways
US Airways
SEA
8:45p
LHR
10:10a
13h 25m
1 stop
LHR
2:55a
SEA
3:22a
24h 27m
2 stops
Direct flights SEA to LHR on Delta
Flight # Depart SEA Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
37 6:32 pm 11:05 am Mar 18 - Mar 18
37 7:10 pm 1:00 pm Apr 1 - Apr 30
37 7:10 pm 1:00 pm Mar 28 - Mar 28
37 7:16 pm 1:00 pm Mar 29 - Mar 31
37 7:52 pm 12:25 pm Mar 8 - Mar 17
37 7:52 pm 12:25 pm Mar 19 - Mar 27
Airports
Origin

Seattle
$936
Destination

London
$936