Find Deals on 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: Sat Oct 29 2016 Return: Sat Nov 5 2016 Trip spans 8 days
Virgin Atlantic
Virgin Atlantic
LHR
ONT
15h 20m
1 stop
ONT
LHR
20h 15m
1 stop
Depart: Tue Mar 7 2017 Return: Tue Mar 21 2017 Trip spans 14 days
British Airways
British Airways
LHR
ONT
20h 25m
2 stops
ONT
LHR
18h 53m
2 stops
Depart: Thu Nov 10 2016 Return: Thu Nov 24 2016 Trip spans 15 days
Delta
Delta
LGW
ONT
21h 00m
2 stops
ONT
LGW
19h 00m
2 stops
Depart: Thu Sep 29 2016 Return: Fri Nov 25 2016 Trip spans 58 days
$1006
Select
United
United
LHR
ONT
14h 07m
1 stop
ONT
LHR
17h 45m
1 stop
Depart: Sat Jan 21 2017 Return: Tue Feb 28 2017 Trip spans 39 days
Virgin Atlantic
Virgin Atlantic
LHR
ONT
17h 34m
1 stop
ONT
LHR
13h 05m
1 stop
Depart: Tue Feb 7 2017 Return: Tue Feb 21 2017 Trip spans 15 days
Virgin Atlantic
Virgin Atlantic
LHR
ONT
19h 10m
1 stop
ONT
LHR
13h 05m
1 stop
Depart: Mon Nov 7 2016 Return: Thu Nov 17 2016 Trip spans 11 days
British Airways
British Airways
LHR
ONT
20h 49m
2 stops
ONT
LHR
18h 15m
1 stop
Depart: Mon Oct 31 2016 Return: Mon Nov 7 2016 Trip spans 8 days
Virgin Atlantic
Virgin Atlantic
LHR
ONT
18h 29m
1 stop
ONT
LHR
12h 49m
1 stop
Depart: Mon Dec 26 2016 Return: Wed Jan 4 2017 Trip spans 10 days
British Airways
British Airways
LHR
ONT
20h 43m
1 stop
ONT
LHR
18h 33m
2 stops
Depart: Tue Nov 8 2016 Return: Tue Nov 15 2016 Trip spans 8 days
British Airways
British Airways
LHR
ONT
27h 50m
1 stop
ONT
LHR
14h 45m
1 stop
Depart: Mon Dec 12 2016 Return: Tue Dec 27 2016 Trip spans 16 days
Virgin Atlantic
Virgin Atlantic
LHR
ONT
19h 12m
1 stop
ONT
LHR
13h 05m
1 stop
Depart: Wed Dec 28 2016 Return: Fri Jan 13 2017 Trip spans 17 days
British Airways
British Airways
LHR
ONT
27h 37m
1 stop
ONT
LHR
12h 43m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

London
only $554
only $879
Destination

Ontario
$554