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Find Flight Deals from London to Ontario (LON - ONT)

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

Book cheap flights from London to Ontario

(Round-trip)
Depart: Tue Apr 7 2015 Return: Thu Apr 30 2015 Trip spans 24 days
US Airways
US Airways
LHR
7:00a
ONT
1:06a
18h 06m
2 stops
ONT
2:30a
LHR
9:00p
18h 30m
2 stops
Depart: Mon Apr 27 2015 Return: Tue May 26 2015 Trip spans 30 days
US Airways
US Airways
LHR
7:00a
ONT
1:06a
18h 06m
2 stops
ONT
2:30a
LHR
9:00p
18h 30m
2 stops
Depart: Sat Apr 4 2015 Return: Tue Apr 14 2015 Trip spans 11 days
US Airways
US Airways
LHR
4:20a
ONT
1:06a
20h 46m
2 stops
ONT
2:30a
LHR
9:00p
18h 30m
2 stops
Depart: Sun Apr 19 2015 Return: Sun May 3 2015 Trip spans 15 days
US Airways
US Airways
LHR
10:25a
ONT
3:53a
17h 28m
2 stops
ONT
2:30a
LHR
7:40p
17h 10m
2 stops
Depart: Wed Jun 10 2015 Return: Wed Jul 8 2015 Trip spans 29 days
US Airways
US Airways
LHR
7:00a
ONT
12:55a
17h 55m
2 stops
ONT
6:00a
LHR
9:00p
15h 00m
2 stops
Depart: Fri Sep 4 2015 Return: Sat Sep 19 2015 Trip spans 16 days
$1130
Select
Aeromexico
Aeromexico
LHR
6:35p
ONT
3:25a
32h 50m
1 stop
ONT
9:05p
LHR
4:05a
31h 00m
1 stop
Depart: Tue Apr 14 2015 Return: Tue Apr 28 2015 Trip spans 15 days
$1237
Select
United
United
LHR
6:25a
ONT
10:47p
16h 22m
1 stop
ONT
6:55a
LHR
9:40p
14h 45m
1 stop
Depart: Wed Apr 15 2015 Return: Tue Apr 28 2015 Trip spans 14 days
$1237
Select
United
United
LHR
10:10a
ONT
12:09a
13h 59m
1 stop
ONT
5:35a
LHR
7:10p
13h 35m
1 stop
Depart: Thu Apr 16 2015 Return: Tue Apr 28 2015 Trip spans 13 days
$1237
Select
United
United
LHR
10:10a
ONT
12:09a
13h 59m
1 stop
ONT
5:35a
LHR
7:10p
13h 35m
1 stop
Depart: Mon Apr 20 2015 Return: Tue Apr 28 2015 Trip spans 9 days
$1237
Select
United
United
LHR
10:10a
ONT
12:09a
13h 59m
1 stop
ONT
5:35a
LHR
7:10p
13h 35m
1 stop
Depart: Tue Apr 28 2015 Return: Tue May 12 2015 Trip spans 15 days
$1237
Select
United
United
LHR
6:25a
ONT
9:23p
14h 58m
1 stop
ONT
8:08a
LHR
9:40p
13h 32m
1 stop
Depart: Wed Apr 29 2015 Return: Tue May 12 2015 Trip spans 14 days
$1237
Select
United
United
LHR
10:10a
ONT
12:09a
13h 59m
1 stop
ONT
12:40p
LHR
2:05a
13h 25m
1 stop
Depart: Thu Apr 30 2015 Return: Tue May 12 2015 Trip spans 13 days
$1237
Select
United
United
LHR
10:10a
ONT
12:09a
13h 59m
1 stop
ONT
12:40p
LHR
2:05a
13h 25m
1 stop
Depart: Mon May 4 2015 Return: Tue May 12 2015 Trip spans 9 days
$1237
Select
United
United
LHR
10:10a
ONT
12:09a
13h 59m
1 stop
ONT
12:40p
LHR
2:05a
13h 25m
1 stop
Depart: Mon Jun 1 2015 Return: Wed Jun 24 2015 Trip spans 24 days
$1237
Select
United
United
LHR
6:25a
ONT
8:10p
13h 45m
1 stop
ONT
6:41a
LHR
7:10p
12h 29m
1 stop
Depart: Tue Jun 2 2015 Return: Wed Jun 24 2015 Trip spans 23 days
$1237
Select
United
United
LHR
6:25a
ONT
8:10p
13h 45m
1 stop
ONT
6:41a
LHR
7:10p
12h 29m
1 stop
Depart: Wed Apr 1 2015 Return: Mon Apr 6 2015 Trip spans 6 days
$1332
Select
Air France
Air France
LHR
2:40a
ONT
8:00p
17h 20m
2 stops
ONT
6:05a
LHR
1:45a
19h 40m
2 stops
Depart: Thu Jul 9 2015 Return: Mon Aug 3 2015 Trip spans 26 days
$1701
Select
British Airways
British Airways
LHR
5:30a
ONT
8:35p
15h 05m
1 stop
ONT
6:42a
LHR
9:15p
14h 33m
1 stop
Depart: Tue Jun 23 2015 Return: Mon Jun 29 2015 Trip spans 7 days
$1705
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
2:30a
ONT
7:52p
17h 22m
2 stops
ONT
6:15a
LHR
12:15a
18h 00m
2 stops
Depart: Wed Jul 22 2015 Return: Wed Aug 5 2015 Trip spans 15 days
$1709
Select
Delta
Delta
LHR
8:30a
ONT
2:26a
17h 56m
2 stops
ONT
2:05a
LHR
6:40p
16h 35m
2 stops
Airports
Origin

London
$745
Destination

Ontario
$745