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: Sun Mar 12 2017 Return: Tue Mar 28 2017 Trip spans 16 days
Delta
Delta
LHR
ONT
18h 51m
2 stops
ONT
LHR
16h 25m
2 stops
Depart: Sun Jul 2 2017 Return: Thu Jul 6 2017 Trip spans 5 days
Aeromexico
Aeromexico
LHR
ONT
32h 32m
2 stops
ONT
LHR
27h 33m
2 stops
Depart: Mon May 8 2017 Return: Mon May 15 2017 Trip spans 8 days
Virgin Atlantic
Virgin Atlantic
LHR
ONT
16h 22m
1 stop
ONT
LHR
12h 50m
1 stop
Depart: Wed Jun 7 2017 Return: Tue Jun 13 2017 Trip spans 7 days
KLM
KLM
LHR
ONT
17h 47m
2 stops
ONT
LHR
23h 25m
2 stops
Depart: Wed Jul 12 2017 Return: Sat Jul 22 2017 Trip spans 11 days
$1241
Select
British Airways
British Airways
LHR
ONT
19h 13m
1 stop
ONT
LHR
19h 05m
1 stop
Depart: Fri Mar 17 2017 Return: Sun Mar 26 2017 Trip spans 10 days
Delta
Delta
LHR
ONT
18h 51m
2 stops
ONT
LHR
19h 07m
1 stop
Depart: Wed Mar 15 2017 Return: Wed Mar 29 2017 Trip spans 15 days
Delta
Delta
LGW
ONT
37h 18m
2 stops
ONT
LGW
43h 25m
2 stops
Depart: Tue Aug 22 2017 Return: Sun Sep 3 2017 Trip spans 13 days
Virgin Atlantic
Virgin Atlantic
LHR
ONT
16h 14m
1 stop
ONT
LHR
12h 17m
1 stop
Depart: Wed Aug 23 2017 Return: Sun Sep 3 2017 Trip spans 12 days
Delta
Delta
LHR
ONT
16h 14m
1 stop
ONT
LHR
12h 17m
1 stop
Depart: Thu Jun 1 2017 Return: Mon Jun 5 2017 Trip spans 5 days
KLM
KLM
LHR
ONT
18h 00m
2 stops
ONT
LHR
20h 25m
2 stops
Depart: Tue Apr 4 2017 Return: Tue Apr 25 2017 Trip spans 22 days
Delta
Delta
LHR
ONT
21h 09m
2 stops
ONT
LHR
19h 15m
2 stops
Depart: Sat Apr 29 2017 Return: Tue May 9 2017 Trip spans 11 days
Delta
Delta
LHR
ONT
14h 37m
1 stop
ONT
LHR
16h 35m
2 stops
Depart: Wed Jul 26 2017 Return: Sat Aug 12 2017 Trip spans 18 days
$1241
Select
British Airways
British Airways
LHR
ONT
19h 13m
1 stop
ONT
LHR
19h 05m
1 stop
Depart: Sun May 7 2017 Return: Mon May 22 2017 Trip spans 16 days
Delta
Delta
LHR
ONT
16h 22m
1 stop
ONT
LHR
12h 50m
1 stop
Depart: Tue Jul 11 2017 Return: Sun Aug 20 2017 Trip spans 41 days
Delta
Delta
LGW
ONT
20h 09m
2 stops
ONT
LGW
19h 25m
2 stops
* 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.

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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,
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Airports
Origin

London
only $659
only $668
Destination

Ontario
$659