Find flights
When to book
FAQs

Cheap flights from Belfast Intl Airport to Ontario from C$ 333

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — YYZ
28 Feb — 7 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to Ontario
Explore the most affordable flight options available from Belfast Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 January 2026.

Thu 12/38:05 p.m.
BFS
-
YYZ
1 stop23h 55m
Multiple Airlines
Thu 19/310:35 p.m.
YYZ
-
BFS
1 stop29h 05m
Multiple Airlines
Deal found 27/1C$ 677
Fri 13/39:20 p.m.
BFS
-
YYZ
1 stop22h 40m
Multiple Airlines
Fri 20/310:35 p.m.
YYZ
-
BFS
1 stop30h 20m
Multiple Airlines
Deal found 27/1C$ 683
Thu 29/16:55 p.m.
BFS
-
YYZ
1 stop25h 05m
Multiple Airlines
Fri 20/29:35 p.m.
YYZ
-
BFS
1 stop30h 20m
Multiple Airlines
Deal found 28/1C$ 793
Fri 13/35:30 p.m.
BFS
-
YUL
1 stop21h 55m
Multiple Airlines
Fri 20/39:25 p.m.
YUL
-
BFS
1 stop12h 25m
Multiple Airlines
Deal found 27/1C$ 886
Thu 12/32:25 p.m.
BFS
-
YTZ
3 stops33h 30m
Multiple Airlines
Thu 19/312:30 p.m.
YTZ
-
BFS
3 stops29h 50m
Multiple Airlines
Deal found 27/1C$ 1,096
Mon 9/310:20 a.m.
BFS
-
YYZ
2 stops17h 54m
Multiple Airlines
Thu 12/310:35 p.m.
YYZ
-
BFS
1 stop29h 05m
Multiple Airlines
Deal found 28/1C$ 1,241
Tue 16/68:55 p.m.
BFS
-
YUL
1 stop22h 20m
Multiple Airlines
Fri 19/66:50 p.m.
YUL
-
BFS
1 stop14h 35m
Multiple Airlines
Deal found 28/1C$ 1,499

Find flight deals from Belfast Intl to Ontario

Keep the following information in mind while searching for Belfast Intl to Ontario flight deals. Data was last updated 29 January 2026.

Round-trip from

C$ 677

One-way from

C$ 333

Popular in

August

Cheapest in

January

Average price

C$ 745
12/3-19/3
  • 12/3-19/3
  • 2 total stops
  • 53h 00m total
  • Belfast to Ontario
Search Deals
13/3
  • 13/3
  • 3 total stops
  • 31h 08m total
  • Belfast to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 216 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 73 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Belfast Intl to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 January 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Ontario that are best for you.

Fly from

Belfast Intl

Fly to

Ontario

Route

Depart

Return

Price

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Thu 12/3

8:05 p.m.-4:00 p.m.

1 stop23h 55m

Toronto Pearson Intl

Thu 19/3

10:35 p.m.-7:40 a.m.

1 stop29h 05m

C$ 677

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Fri 13/3

9:20 p.m.-4:00 p.m.

1 stop22h 40m

Toronto Pearson Intl

Fri 20/3

10:35 p.m.-8:55 a.m.

1 stop30h 20m

C$ 683

BelfastMontreal

BFS - YUL

BFSYUL

Belfast Intl

Fri 13/3

5:30 p.m.-11:25 a.m.

1 stop21h 55m

Montreal Pierre Elliott Trudeau Intl

Fri 20/3

9:25 p.m.-1:50 p.m.

1 stop12h 25m

C$ 886

BelfastToronto

BFS - YTZ

BFSYTZ

Belfast Intl

Thu 12/3

2:25 p.m.-7:55 p.m.

3 stops33h 30m

Toronto Island

Thu 19/3

12:30 p.m.-10:20 p.m.

3 stops29h 50m

C$ 1,096

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Mon 9/3

10:20 a.m.-12:14 a.m.

2 stops17h 54m

Toronto Pearson Intl

Thu 12/3

10:35 p.m.-7:40 a.m.

1 stop29h 05m

C$ 1,241

BelfastMontreal

BFS - YUL

BFSYUL

Belfast Intl

Tue 16/6

8:55 p.m.-2:15 p.m.

1 stop22h 20m

Montreal Pierre Elliott Trudeau Intl

Fri 19/6

6:50 p.m.-2:25 p.m.

1 stop14h 35m

C$ 1,499

BelfastMontreal

BFS - YUL

BFSYUL

Belfast Intl

Fri 13/3

9:30 p.m.-12:38 a.m.

3 stops31h 08m

C$ 333

BelfastMontreal

BFS - YUL

BFSYUL

Belfast Intl

Sun 3/5

9:35 a.m.-6:25 p.m.

3 stops37h 50m

C$ 498

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/1

Best time to book a flight from Belfast Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Belfast Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Belfast Intl Airport to Ontario
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most popular routes from Belfast Intl Airport to Region of Ontario?

    When deciding which route to take from Belfast Intl Airport to Region of Ontario consider Belfast Intl - Toronto Pearson Intl, Belfast Intl - Montreal Pierre Elliott Trudeau Intl or Belfast Intl - Toronto Island as they are the most popular.

  • Can I find deals for flights from Belfast Intl to Ontario that include hotel bookings?

    Yes. In addition to deals on Belfast Intl to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Belfast Intl to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Ontario.

  • Can I find deals for business class flights from Belfast Intl to Ontario?

    Yes. Cheapflights offers flight deals from Belfast Intl to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Belfast Intl to Ontario?

Cheapflights makes it easy to find Belfast Intl to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Ontario?

Cheapflights helps you find that perfect flight to Ontario from Belfast Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Belfast Intl to Ontario with no change fees?

Certainly. Search results for flights to Ontario from Belfast Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Belfast Intl to Ontario become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ontario from Belfast Intl today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.