£390 Find Cheap Flights from Belfast Intl Airport to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast Intl to Ontario departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Ontario, as well as popular online travel agencies
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Best Ontario Flight Deals from Belfast Intl

Cheapest return prices found by our users on KAYAK in the last 72 hours
London
London2 stops£880
London
London2 stops£880

Cheap Flights from Belfast Intl to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Belfast Intl to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Belfast Intl to Ontario

Thu, 7 Aug - Sun, 17 Aug
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22:45 - 11:00BFS-YYZ
17h 15m1 stop
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19:15 - 21:30YYZ-BFS
21h 15m1 stop
Thu, 18 Sep - Mon, 22 Sep
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06:10 - 19:20BFS-YUL
18h 10m2 stops
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18:00 - 20:25YUL-BFS
21h 25m2 stops
Tue, 26 Aug - Tue, 16 Sep
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23:10 - 11:00BFS-YYZ
16h 50m1 stop
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19:15 - 06:50YYZ-BFS
30h 35m1 stop
Fri, 5 Sep - Fri, 19 Sep
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06:05 - 12:45BFS-YYZ
11h 40m1 stop
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22:45 - 09:25YYZ-BFS
29h 40m1 stop
Thu, 18 Sep - Mon, 22 Sep
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19:35 - 12:05BFS-YUL
21h 30m2 stops
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21:20 - 19:05YUL-BFS
16h 45m1 stop
Wed, 27 Aug - Mon, 1 Sep
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21:10 - 14:10BFS-YYZ
22h 00m1 stop
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22:15 - 21:55YYZ-BFS
18h 40m1 stop
Wed, 29 Oct - Sat, 8 Nov
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06:30 - 16:00BFS-YYZ
13h 30m1 stop
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21:35 - 17:40YYZ-BFS
15h 05m1 stop
Fri, 10 Oct - Sun, 19 Oct
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08:20 - 14:10BFS-YYZ
10h 50m1 stop
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23:55 - 17:25YYZ-BFS
12h 30m2 stops
Thu, 18 Sep - Mon, 22 Sep
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19:35 - 10:35BFS-YUL
20h 00m1 stop
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21:20 - 19:05YUL-BFS
16h 45m1 stop
Fri, 10 Oct - Sun, 19 Oct
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21:05 - 15:40BFS-YYZ
23h 35m1 stop
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22:45 - 20:20YYZ-BFS
16h 35m1 stop
Useful Info

KAYAK's insights & trends for Belfast Intl to Ontario flights

Get data-powered insights and trends into flights from Belfast Intl to Ontario to help you find the cheapest flights, the best time to fly and much more.

How long does a flight from Belfast Intl Airport to Ontario take?

The duration of a flight to Ontario depends on your arrival airport. The shortest routes to Ontario from Belfast Intl Airport are to Toronto, which takes 14h 25m, and Toronto, which takes 46h 36m.


Good to know - Cheap tickets from Belfast Intl Airport to Ontario

Low seasonMay
High seasonJuly
Cheapest flight£390
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly (16% more expensive on average)
Flight from Belfast to Montreal

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Belfast Intl Airport to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Belfast Intl Airport to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Belfast Intl Airport to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Belfast Intl Airport to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Belfast Intl Airport to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Belfast Intl Airport to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast Intl Airport to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Belfast Intl Airport to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ontario?

    The cheapest time of day to fly to Ontario is generally in the morning, when retur flights cost £777 on average. Morning departures are around 6% cheaper than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the evening, which is peak travel time and where the average cost of a ticket is £828.

Reviews of the top airline flying from Belfast Intl to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Belfast to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Belfast Intl to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.6
British AirwaysOverall score based on 7096 reviews
6.7Comfort
6.3Food
6.4Entertainment
7.6Crew
6.9Boarding
Airline reviews

Cancelled flight, limited information and chaotic rebooking and accommodation provision. Apathetic crew who were more interested in taking about their layover plans than remembering passengers orders and actually bringing them (after 3 reminders). To top it off, priority baggage checked in at The Wing (LHR’s first class checkin) was delivered last to the baggage belt.

4.0 OkayKen, Jul 2025LHR - DXB
Read more British Airways reviews

Cancelled flight, limited information and chaotic rebooking and accommodation provision. Apathetic crew who were more interested in taking about their layover plans than remembering passengers orders and actually bringing them (after 3 reminders). To top it off, priority baggage checked in at The Wing (LHR’s first class checkin) was delivered last to the baggage belt.

The crew were good. The flight was on time. The entertainment choice was ok. But the food was bad, tasted and texture were awful.

After boarding we were waiting in the plane for more than one hour to take off without AC with very high temperature inside

The flight was an hour late leaving Heathrow. The food was mediocre. When we got to Austin, my husband’s luggage was missing. He filled out information at baggage claim. We are waiting to hear something. His name is Henry Jacob Braunig.

Only for BA because we had to get to Edinburgh at a certain time. Baggage lost, late boarding with only one person checking, again, our passports and boarding passes until the despatch controller had to step in to get us away. Will never fly BA again.

The food was very good and it came multiple times

Flight from LGW to JFK delayed by 4 hrs No explanation given until the pilot said the delay due to planned maintenance on the aircraft

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

All service prior to the flight was terrible: online check-in not working, no customer service tel,, multiple airport scanners not working, A huge mess.

CONSTANT ERROR MESSAGE THAT THE WIFI COULD NOT BE PURCHASED DUE TO INABILITY TO CONNECT PAYMENT SYSTEM VIA SATELLITE. THIS HAPPENED IN BOTH DIRECTIONS. THE MAIN REASON I TRAVEL IN PRIORITY IS TO BE ABLE TO WORK FOR WHICH I NEED ACCESS TO INTERNET. .

Everything you need to know for your flight from Belfast Intl to Ontario

Information on your arrival and departure airports

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