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

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 Ontario to London

(Round-trip)
Depart: Tue Nov 1 2016 Return: Sun Nov 20 2016 Trip spans 20 days
Depart: Thu Dec 22 2016 Return: Thu Jan 5 2017 Trip spans 15 days
Depart: Fri Jan 20 2017 Return: Mon Jan 30 2017 Trip spans 11 days
Depart: Tue Dec 13 2016 Return: Sun Dec 25 2016 Trip spans 13 days
Depart: Sat Oct 29 2016 Return: Tue Nov 22 2016 Trip spans 25 days
Depart: Wed Nov 30 2016 Return: Sun Dec 11 2016 Trip spans 12 days
Depart: Tue Dec 27 2016 Return: Thu Jan 5 2017 Trip spans 10 days
Depart: Thu Jan 26 2017 Return: Thu Mar 2 2017 Trip spans 36 days
Depart: Fri Dec 2 2016 Return: Sun Dec 11 2016 Trip spans 10 days
Depart: Sat Aug 27 2016 Return: Sat Sep 3 2016 Trip spans 8 days
Depart: Thu Dec 1 2016 Return: Mon Dec 12 2016 Trip spans 12 days
Depart: Mon Jan 9 2017 Return: Tue Jan 17 2017 Trip spans 9 days
Depart: Fri Dec 16 2016 Return: Fri Dec 23 2016 Trip spans 8 days
Depart: Wed Sep 21 2016 Return: Tue Oct 4 2016 Trip spans 14 days
Depart: Wed Sep 28 2016 Return: Fri Oct 7 2016 Trip spans 10 days
Depart: Sat Jan 21 2017 Return: Sat Feb 4 2017 Trip spans 15 days
Depart: Wed Sep 21 2016 Return: Wed Oct 5 2016 Trip spans 15 days
Depart: Fri Nov 18 2016 Return: Sun Nov 27 2016 Trip spans 10 days
Depart: Tue Feb 7 2017 Return: Fri Feb 17 2017 Trip spans 11 days
Depart: Tue Feb 28 2017 Return: Mon Mar 6 2017 Trip spans 7 days
* 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

Ontario
$865
Destination

London
only $865
only $870