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
The price shown for each flight will be the average for all passengers including any infants.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from London Heathrow to Ontario

(Round-trip)
Depart: Fri Feb 26 2016 Return: Wed Mar 2 2016 Trip spans 6 days
British Airways
British Airways
LHR
ONT
32h 45m
2 stops
ONT
LHR
14h 30m
1 stop
Depart: Tue Aug 30 2016 Return: Thu Sep 22 2016 Trip spans 24 days
KLM
KLM
LHR
ONT
21h 35m
2 stops
ONT
LHR
20h 30m
2 stops
Depart: Tue Mar 29 2016 Return: Mon Apr 11 2016 Trip spans 14 days
American Airlines
American Airlines
LHR
ONT
16h 45m
1 stop
ONT
LHR
12h 50m
1 stop
Depart: Sat Apr 23 2016 Return: Sun Apr 24 2016 Trip spans 2 days
American Airlines
American Airlines
LHR
ONT
15h 23m
1 stop
ONT
LHR
15h 15m
1 stop
Depart: Sun May 8 2016 Return: Sat May 21 2016 Trip spans 14 days
American Airlines
American Airlines
LHR
ONT
15h 50m
1 stop
ONT
LHR
15h 00m
1 stop
Depart: Fri May 20 2016 Return: Sun May 22 2016 Trip spans 3 days
American Airlines
American Airlines
LHR
ONT
16h 10m
1 stop
ONT
LHR
14h 55m
2 stops
Depart: Sun Jun 12 2016 Return: Sun Jun 26 2016 Trip spans 15 days
American Airlines
American Airlines
LHR
ONT
16h 03m
1 stop
ONT
LHR
19h 25m
1 stop
Depart: Mon Jun 13 2016 Return: Mon Jun 20 2016 Trip spans 8 days
American Airlines
American Airlines
LHR
ONT
16h 03m
1 stop
ONT
LHR
15h 00m
1 stop
Depart: Thu Jul 14 2016 Return: Mon Aug 8 2016 Trip spans 26 days
$1459
Select
KLM
KLM
LHR
ONT
22h 01m
2 stops
ONT
LHR
19h 30m
2 stops
Depart: Tue Jul 12 2016 Return: Mon Aug 15 2016 Trip spans 35 days
$1512
Select
American Airlines
American Airlines
LHR
ONT
21h 38m
1 stop
ONT
LHR
12h 44m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

We’re not the seller
At KAYAK we don’t set 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 don'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
$720
Destination

Ontario
$720