Find Deals on Flights from London Heathrow to Ontario (LHR - ONT)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
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 Heathrow to Ontario

(Round-trip)
Depart: Tue Feb 7 2017 Return: Tue Feb 21 2017 Trip spans 15 days
KLM
KLM
LHR
ONT
19h 20m
2 stops
ONT
LHR
17h 29m
2 stops
Depart: Fri Jun 16 2017 Return: Mon Jul 10 2017 Trip spans 25 days
Virgin Atlantic
Virgin Atlantic
LHR
ONT
16h 44m
1 stop
ONT
LHR
12h 17m
1 stop
Depart: Wed Jul 26 2017 Return: Wed Aug 30 2017 Trip spans 36 days
British Airways
British Airways
LHR
ONT
15h 53m
1 stop
ONT
LHR
19h 05m
1 stop
Depart: Wed Feb 8 2017 Return: Tue Feb 21 2017 Trip spans 14 days
KLM
KLM
LHR
ONT
18h 55m
2 stops
ONT
LHR
19h 14m
2 stops
Depart: Tue Mar 28 2017 Return: Mon Apr 10 2017 Trip spans 14 days
KLM
KLM
LHR
ONT
18h 01m
2 stops
ONT
LHR
23h 20m
2 stops
Depart: Wed Mar 29 2017 Return: Thu Apr 6 2017 Trip spans 9 days
KLM
KLM
LHR
ONT
22h 11m
2 stops
ONT
LHR
25h 55m
2 stops
Depart: Tue Feb 28 2017 Return: Mon Mar 27 2017 Trip spans 27 days
KLM
KLM
LHR
ONT
18h 55m
2 stops
ONT
LHR
22h 57m
2 stops
Depart: Tue Jul 25 2017 Return: Tue Aug 22 2017 Trip spans 29 days
British Airways
British Airways
LHR
ONT
16h 25m
1 stop
ONT
LHR
19h 51m
1 stop
Depart: Thu Apr 6 2017 Return: Wed Apr 19 2017 Trip spans 14 days
KLM
KLM
LHR
ONT
23h 51m
2 stops
ONT
LHR
27h 15m
2 stops
Depart: Mon Jul 31 2017 Return: Thu Aug 17 2017 Trip spans 18 days
British Airways
British Airways
LHR
ONT
15h 53m
1 stop
ONT
LHR
18h 36m
1 stop
Depart: Wed Apr 12 2017 Return: Thu Apr 20 2017 Trip spans 9 days
KLM
KLM
LHR
ONT
17h 57m
2 stops
ONT
LHR
20h 25m
2 stops
Depart: Thu May 4 2017 Return: Thu May 18 2017 Trip spans 15 days
KLM
KLM
LHR
ONT
21h 34m
2 stops
ONT
LHR
23h 25m
2 stops
Depart: Wed May 10 2017 Return: Wed May 31 2017 Trip spans 22 days
KLM
KLM
LHR
ONT
18h 00m
2 stops
ONT
LHR
20h 25m
2 stops
Depart: Sat Apr 1 2017 Return: Sat Apr 15 2017 Trip spans 15 days
$1102
Select
British Airways
British Airways
LHR
ONT
26h 47m
1 stop
ONT
LHR
16h 35m
1 stop
Depart: Tue May 23 2017 Return: Tue Jun 6 2017 Trip spans 15 days
KLM
KLM
LHR
ONT
18h 00m
2 stops
ONT
LHR
23h 25m
2 stops
Depart: Tue Apr 18 2017 Return: Wed Apr 26 2017 Trip spans 9 days
KLM
KLM
LHR
ONT
23h 44m
2 stops
ONT
LHR
23h 40m
2 stops
Depart: Sat Jul 22 2017 Return: Sat Aug 5 2017 Trip spans 15 days
$1195
Select
British Airways
British Airways
LHR
ONT
19h 13m
1 stop
ONT
LHR
15h 00m
1 stop
Depart: Fri Jun 9 2017 Return: Mon Jul 10 2017 Trip spans 32 days
KLM
KLM
LHR
ONT
23h 50m
2 stops
ONT
LHR
19h 52m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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.

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Airports
Origin

London
$539
Destination

Ontario
$539