Find Cheap Flights from London to Ontario (LON - ONT)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from London to Ontario

(Round-trip)
Depart: Tue Oct 3 2017 Return: Tue Oct 17 2017 Trip spans 15 days
KLM
KLM
LHR
ONT
18h 00m
2 stops
ONT
LHR
20h 25m
2 stops
Depart: Mon May 15 2017 Return: Thu May 25 2017 Trip spans 11 days
Virgin Atlantic
Virgin Atlantic
LHR
ONT
16h 33m
1 stop
ONT
LHR
12h 34m
1 stop
Depart: Tue May 16 2017 Return: Tue May 30 2017 Trip spans 15 days
Delta
Delta
LGW
ONT
20h 23m
2 stops
ONT
LGW
32h 39m
2 stops
Depart: Mon Sep 11 2017 Return: Wed Oct 11 2017 Trip spans 31 days
British Airways
British Airways
LGW
ONT
28h 50m
2 stops
ONT
LGW
25h 28m
2 stops
Depart: Mon Sep 11 2017 Return: Tue Sep 26 2017 Trip spans 16 days
KLM
KLM
LHR
ONT
18h 00m
2 stops
ONT
LHR
19h 00m
2 stops
Depart: Mon Jun 5 2017 Return: Tue Jun 20 2017 Trip spans 16 days
Delta
Delta
LGW
ONT
20h 23m
2 stops
ONT
LGW
19h 25m
2 stops
Depart: Mon Jun 5 2017 Return: Sat Jun 17 2017 Trip spans 13 days
Virgin Atlantic
Virgin Atlantic
LHR
ONT
16h 33m
1 stop
ONT
LHR
16h 20m
1 stop
Depart: Wed Aug 30 2017 Return: Mon Sep 11 2017 Trip spans 13 days
KLM
KLM
LHR
ONT
23h 50m
2 stops
ONT
LHR
15h 12m
2 stops
Depart: Mon Aug 21 2017 Return: Wed Sep 6 2017 Trip spans 17 days
$1254
Select
British Airways
British Airways
LHR
ONT
21h 26m
2 stops
ONT
LHR
14h 28m
1 stop
Depart: Sat Apr 29 2017 Return: Wed May 3 2017 Trip spans 5 days
$1238
Select
Virgin Atlantic
Virgin Atlantic
LHR
ONT
14h 37m
1 stop
ONT
LHR
19h 07m
1 stop
Depart: Sun Jul 2 2017 Return: Thu Jul 13 2017 Trip spans 12 days
$1219
Select
KLM
KLM
LHR
ONT
16h 29m
2 stops
ONT
LHR
19h 00m
2 stops
Depart: Sun Jul 16 2017 Return: Sun Jul 30 2017 Trip spans 15 days
$1452
Select
British Airways
British Airways
LGW
ONT
44h 44m
2 stops
ONT
LGW
42h 00m
2 stops
Depart: Wed Jun 28 2017 Return: Sat Jul 8 2017 Trip spans 11 days
$1235
Select
KLM
KLM
LHR
ONT
18h 10m
2 stops
ONT
LHR
20h 15m
2 stops
Depart: Mon Jul 10 2017 Return: Mon Jul 24 2017 Trip spans 15 days
$1521
Select
British Airways
British Airways
LHR
ONT
21h 26m
2 stops
ONT
LHR
14h 59m
1 stop
Depart: Mon Jul 17 2017 Return: Tue Aug 22 2017 Trip spans 37 days
$1540
Select
British Airways
British Airways
LHR
ONT
19h 25m
2 stops
ONT
LHR
19h 51m
1 stop
Depart: Wed Aug 9 2017 Return: Wed Aug 16 2017 Trip spans 8 days
$1544
Select
British Airways
British Airways
LHR
ONT
18h 16m
1 stop
ONT
LHR
14h 59m
1 stop
Depart: Sat Aug 5 2017 Return: Sat Aug 19 2017 Trip spans 15 days
$1656
Select
British Airways
British Airways
LHR
ONT
21h 26m
2 stops
ONT
LHR
18h 25m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

London
only $875
only $906
Destination

Ontario
$875