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 Mar 5 2016 Return: Sun Mar 13 2016 Trip spans 9 days
British Airways
British Airways
LGW
ONT
31h 50m
2 stops
ONT
LGW
42h 50m
2 stops
Depart: Sat Feb 20 2016 Return: Tue Mar 1 2016 Trip spans 11 days
British Airways
British Airways
LGW
ONT
31h 50m
2 stops
ONT
LGW
24h 30m
2 stops
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 Mar 29 2016 Return: Sun Apr 17 2016 Trip spans 20 days
American Airlines
American Airlines
LHR
ONT
21h 37m
1 stop
ONT
LHR
15h 15m
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: Mon Jul 18 2016 Return: Mon Aug 1 2016 Trip spans 15 days
$1457
Select
Delta
Delta
LGW
ONT
20h 11m
2 stops
ONT
LGW
15h 20m
2 stops
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
Depart: Wed Aug 3 2016 Return: Mon Aug 29 2016 Trip spans 27 days
$1529
Select
American Airlines
American Airlines
LHR
ONT
15h 00m
1 stop
ONT
LHR
14h 55m
2 stops
Depart: Sun Jul 17 2016 Return: Sat Jul 23 2016 Trip spans 7 days
$2256
Select
Air Canada
Air Canada
LGW
ONT
16h 40m
2 stops
ONT
LGW
19h 45m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

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.

We aggregate tons 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 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
only $720
only $587
Destination

Ontario
$587