Find Deals on Flights from Ontario to Europe

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 Europe

(Round-trip)
Depart: Tue Apr 11 2017 Return: Tue Apr 25 2017 Trip spans 15 days
Delta
Delta
ONT
ARN
27h 30m
2 stops
ARN
ONT
18h 57m
2 stops
Depart: Wed May 3 2017 Return: Wed May 31 2017 Trip spans 29 days
British Airways
British Airways
ONT
ARN
23h 35m
2 stops
ARN
ONT
21h 23m
2 stops
Depart: Wed Mar 29 2017 Return: Wed Apr 5 2017 Trip spans 8 days
United
United
ONT
LHR
14h 05m
1 stop
LHR
ONT
13h 56m
1 stop
Depart: Tue Apr 4 2017 Return: Thu Apr 13 2017 Trip spans 10 days
American Airlines
American Airlines
ONT
LHR
18h 20m
1 stop
LHR
ONT
15h 18m
1 stop
Depart: Mon Apr 10 2017 Return: Wed May 10 2017 Trip spans 31 days
Major Airline
Major Airline
ONT
OSL
20h 45m
2 stops
OSL
ONT
21h 23m
2 stops
Depart: Wed Apr 12 2017 Return: Wed May 10 2017 Trip spans 29 days
Air France
Air France
ONT
CDG
15h 52m
1 stop
CDG
ONT
36h 26m
2 stops
Depart: Sun May 28 2017 Return: Wed Jun 7 2017 Trip spans 11 days
KLM
KLM
ONT
LHR
17h 05m
2 stops
LHR
ONT
20h 52m
2 stops
Depart: Mon Jul 3 2017 Return: Mon Jul 17 2017 Trip spans 15 days
Air Canada
Air Canada
ONT
KEF
26h 25m
2 stops
KEF
ONT
22h 28m
2 stops
Depart: Thu May 11 2017 Return: Wed May 31 2017 Trip spans 21 days
$1054
Select
Aeromexico
Aeromexico
ONT
MAD
31h 27m
2 stops
MAD
ONT
41h 33m
2 stops
Depart: Mon Mar 27 2017 Return: Mon Apr 3 2017 Trip spans 8 days
Delta
Delta
ONT
OSL
25h 00m
2 stops
OSL
ONT
18h 35m
2 stops
Depart: Tue May 2 2017 Return: Tue May 9 2017 Trip spans 8 days
British Airways
British Airways
ONT
LHR
18h 50m
1 stop
LHR
ONT
16h 13m
1 stop
Depart: Sun Aug 20 2017 Return: Mon Sep 4 2017 Trip spans 16 days
American Airlines
American Airlines
ONT
LHR
13h 05m
1 stop
LHR
ONT
15h 00m
1 stop
Depart: Sun Mar 26 2017 Return: Wed Apr 5 2017 Trip spans 11 days
KLM
KLM
ONT
LHR
23h 37m
2 stops
LHR
ONT
22h 09m
2 stops
Depart: Wed Apr 19 2017 Return: Wed May 3 2017 Trip spans 15 days
Delta
Delta
ONT
LHR
15h 05m
1 stop
LHR
ONT
20h 12m
2 stops
Depart: Sat Jun 3 2017 Return: Tue Jun 13 2017 Trip spans 11 days
United
United
ONT
LHR
27h 00m
1 stop
LHR
ONT
16h 48m
1 stop
Depart: Sat Aug 19 2017 Return: Wed Aug 30 2017 Trip spans 12 days
British Airways
British Airways
ONT
LHR
24h 21m
1 stop
LHR
ONT
15h 00m
1 stop
Depart: Wed Aug 9 2017 Return: Wed Aug 23 2017 Trip spans 15 days
American Airlines
American Airlines
ONT
BCN
19h 46m
2 stops
BCN
ONT
20h 53m
2 stops
Depart: Sun Aug 13 2017 Return: Sun Sep 3 2017 Trip spans 22 days
KLM
KLM
ONT
TRF
27h 40m
2 stops
TRF
ONT
23h 42m
2 stops
Depart: Sat Apr 22 2017 Return: Tue May 2 2017 Trip spans 11 days
Delta
Delta
ONT
LHR
15h 05m
1 stop
LHR
ONT
16h 22m
1 stop
Depart: Tue Aug 15 2017 Return: Thu Aug 24 2017 Trip spans 10 days
Air France
Air France
ONT
CDG
16h 55m
1 stop
CDG
ONT
15h 53m
1 stop
* 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
$534
Destination

Reykjavik
$846
Oslo
$551
Barcelona
$588
Madrid
$1054
London
$563
Sandefjord
$619
Stockholm
$534
Paris
$589