£287 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 21/7. 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, 0 bags

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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Cheap Flights from Belfast Intl to Ontario

Cheapest return prices found by our users on KAYAK in the last 72 hours
Ottawa
Ottawa2 stops£576
London
London3 stops£1,161
Ottawa
Ottawa2 stops£576
London
London3 stops£1,161

Book Cheap Belfast Intl to Ontario Plane Tickets

 
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

Mon, 25 May - Mon, 8 Jun
Multiple Airlines Logo
21:50 - 13:20
BFS
-
YYZ
20h 30m
2 stops
Multiple Airlines Logo
22:15 - 23:05
YYZ
-
BFS
19h 50m
1 stop
£438Multiple Airlines
Mon, 25 May - Mon, 8 Jun
Multiple Airlines Logo
21:50 - 14:55
BFS
-
YYZ
22h 05m
2 stops
Multiple Airlines Logo
07:35 - 11:15
YYZ
-
BFS
22h 40m
2 stops
£466Multiple Airlines
Mon, 25 May - Mon, 8 Jun
Multiple Airlines Logo
21:35 - 11:00
BFS
-
YYZ
18h 25m
1 stop
Multiple Airlines Logo
19:15 - 12:30
YYZ
-
BFS
12h 15m
1 stop
£507Multiple Airlines
Sat, 14 Mar - Sat, 21 Mar
Multiple Airlines Logo
08:10 - 21:17
BFS
-
YUL
17h 07m
2 stops
Multiple Airlines Logo
10:15 - 15:25
YUL
-
BFS
25h 10m
2 stops
£524Multiple Airlines
Thu, 2 Apr - Thu, 9 Apr
Multiple Airlines Logo
20:05 - 15:45
BFS
-
YUL
24h 40m
1 stop
Multiple Airlines Logo
18:20 - 22:50
YUL
-
BFS
23h 30m
1 stop
£562Multiple Airlines
Wed, 1 Apr - Wed, 8 Apr
Multiple Airlines Logo
15:40 - 15:40
BFS
-
YYZ
29h 00m
3 stops
Multiple Airlines Logo
17:10 - 15:20
YYZ
-
BFS
17h 10m
2 stops
£573Multiple Airlines
Thu, 2 Apr - Thu, 9 Apr
Multiple Airlines Logo
20:05 - 11:05
BFS
-
YUL
20h 00m
1 stop
Multiple Airlines Logo
16:40 - 22:50
YUL
-
BFS
25h 10m
2 stops
£609Multiple Airlines
Sat, 14 Mar - Sat, 21 Mar
Multiple Airlines Logo
08:50 - 01:53
BFS
-
YUL
21h 03m
2 stops
Multiple Airlines Logo
20:10 - 15:50
YUL
-
BFS
15h 40m
1 stop
£622Multiple Airlines
Mon, 9 Mar - Sun, 15 Mar
Multiple Airlines Logo
08:35 - 19:15
BFS
-
YYZ
14h 40m
2 stops
Multiple Airlines Logo
20:40 - 20:10
YYZ
-
BFS
19h 30m
2 stops
£634Multiple Airlines
Fri, 26 Jun - Tue, 21 Jul
Multiple Airlines Logo
06:20 - 21:10
BFS
-
YUL
19h 50m
2 stops
Multiple Airlines Logo
06:45 - 19:50
YUL
-
BFS
32h 05m
2 stops
£643Multiple Airlines
Booking Insights

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 17h 07m, and Toronto, which takes 35h 51m.

Find deals

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

Cheapest flight£287
Flight from Belfast Intl Airport to Toronto

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.

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.
6.7
British AirwaysOverall score based on 7751 reviews
7.6Crew
6.4Entertainment
6.8Comfort
6.9Boarding
6.4Food
Airline reviews

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

4.0 OkayDaniel, Feb 2026
LHR - BWI
Read more British Airways reviews

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

No WiFi. No food. 250 ml of water only drink option. No entertainment options. Extremely bare bones flight

Really appreciated the care, attention and friendliness of cabin crew. Very comfortable, prompt and efficient flight.

Economy seats were good and spacious. Much better than virgin by a mile.

It’s the old style plane with the old Ying Yang seats doesn’t compare to other airlines with newer planes.

I was unable to board this flight because of visa changes that I was not alerted about and I’ve been unable to contact Kayak to obtain a refund / credit anything.

Entertainment system didn't work well. Also no new movies and limited choice of other programmes. . And only one USB A charger option. Most modern electronic items needs USB C. Planes should offer both

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

Information on your arrival and departure airports

Belfast Intl Airport (BFS)