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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: Tue Apr 14 2015 Trip spans 8 days
US Airways
US Airways
LHR
7:00a
ONT
1:06a
18h 06m
2 stops
ONT
6:00a
LHR
11:25p
17h 25m
2 stops
Depart: Fri May 1 2015 Return: Mon May 11 2015 Trip spans 11 days
US Airways
US Airways
LHR
7:00a
ONT
1:06a
18h 06m
2 stops
ONT
6:00a
LHR
11:16p
17h 16m
2 stops
Depart: Sat Apr 4 2015 Return: Tue Apr 7 2015 Trip spans 4 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: Thu Mar 12 2015 Return: Mon Mar 16 2015 Trip spans 5 days
US Airways
US Airways
LHR
9:20a
ONT
2:56a
17h 36m
2 stops
ONT
8:40a
LHR
11:30p
14h 50m
2 stops
Depart: Wed Mar 11 2015 Return: Tue Mar 17 2015 Trip spans 7 days
Air France
Air France
LHR
6:10a
ONT
1:34a
19h 24m
2 stops
ONT
2:00a
LHR
1:25a
23h 25m
1 stop
Depart: Wed Mar 18 2015 Return: Tue Apr 7 2015 Trip spans 21 days
Air France
Air France
LHR
6:35a
ONT
1:34a
18h 59m
2 stops
ONT
2:00a
LHR
1:00a
23h 00m
1 stop
Depart: Sat Mar 14 2015 Return: Tue Mar 17 2015 Trip spans 4 days
Air France
Air France
LHR
6:10a
ONT
1:30a
19h 20m
2 stops
ONT
2:00a
LHR
1:25a
23h 25m
1 stop
Depart: Tue Mar 10 2015 Return: Tue Mar 17 2015 Trip spans 8 days
British Airways
British Airways
LHR
2:30a
ONT
2:16a
23h 46m
2 stops
ONT
10:55a
LHR
12:30a
13h 35m
1 stop
Depart: Tue Mar 3 2015 Return: Mon Mar 9 2015 Trip spans 6 days
Air France
Air France
LHR
7:00a
ONT
7:00p
36h 00m
2 stops
ONT
2:00a
LHR
1:25a
23h 25m
1 stop
Depart: Wed Mar 4 2015 Return: Mon Mar 9 2015 Trip spans 5 days
Air France
Air France
LHR
7:00a
ONT
7:00p
36h 00m
2 stops
ONT
2:00a
LHR
1:25a
23h 25m
1 stop
Depart: Fri Mar 13 2015 Return: Tue Mar 17 2015 Trip spans 5 days
Air France
Air France
LHR
6:35a
ONT
1:34a
18h 59m
2 stops
ONT
2:00a
LHR
10:00p
20h 00m
2 stops
Depart: Thu Mar 5 2015 Return: Mon Mar 9 2015 Trip spans 4 days
Air France
Air France
LHR
1:40a
ONT
7:00p
17h 20m
2 stops
ONT
2:00a
LHR
1:25a
23h 25m
1 stop
Depart: Fri Mar 6 2015 Return: Mon Mar 9 2015 Trip spans 3 days
Air France
Air France
LHR
2:10a
ONT
7:00p
16h 50m
2 stops
ONT
2:00a
LHR
1:25a
23h 25m
1 stop
Depart: Mon Jun 8 2015 Return: Tue Jul 21 2015 Trip spans 44 days
$1005
Select
US Airways
US Airways
LHR
7:00a
ONT
1:05a
18h 05m
2 stops
ONT
6:00a
LHR
9:00p
15h 00m
2 stops
Depart: Wed Jun 17 2015 Return: Mon Jul 13 2015 Trip spans 27 days
$1117
Select
KLM Royal Dutch
KLM Royal Dutch
LHR
9:05a
ONT
2:51a
17h 46m
1 stop
ONT
6:25a
LHR
1:00a
18h 35m
1 stop
Depart: Mon Mar 30 2015 Return: Mon Apr 6 2015 Trip spans 8 days
$1120
Select
Air France
Air France
LHR
9:05a
ONT
3:21a
18h 16m
1 stop
ONT
2:00a
LHR
1:00a
23h 00m
1 stop
Depart: Wed Apr 1 2015 Return: Mon Apr 6 2015 Trip spans 6 days
$1123
Select
Air France
Air France
LHR
9:05a
ONT
3:21a
18h 16m
1 stop
ONT
2:00a
LHR
1:00a
23h 00m
1 stop
Depart: Thu Apr 2 2015 Return: Mon Apr 6 2015 Trip spans 5 days
$1123
Select
Air France
Air France
LHR
9:05a
ONT
3:21a
18h 16m
1 stop
ONT
2:00a
LHR
1:00a
23h 00m
1 stop
Depart: Mon May 18 2015 Return: Mon Jun 8 2015 Trip spans 22 days
$1123
Select
Air France
Air France
LHR
9:05a
ONT
3:20a
18h 15m
1 stop
ONT
2:05a
LHR
1:00a
22h 55m
1 stop
Depart: Tue May 19 2015 Return: Tue Jun 9 2015 Trip spans 22 days
$1211
Select
United
United
LHR
7:40a
ONT
11:10p
15h 30m
1 stop
ONT
7:35a
LHR
9:40p
14h 05m
1 stop
Change your search
Airports
Origin

London
$769
Destination

Ontario
$769