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Cheap flights from Ontario to Belfast Intl Airport from £346

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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Belfast Intl
Explore the most affordable flight options available from Ontario to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.

Thu 11/1207:05YYZ - BFS
3 stops31h 30mMultiple Airlines
Fri 19/1208:45BFS - YYZ
2 stops32h 45mMultiple Airlines
Deal found 10/12£772
Sun 14/1211:20YUL - BFS
2 stops30h 05mMultiple Airlines
Tue 16/1208:35BFS - YUL
2 stops32h 35mMultiple Airlines
Deal found 10/12£888
Thu 11/1207:05YYZ - BFS
3 stops31h 30mMultiple Airlines
Sat 20/1222:25BFS - YYZ
3 stops26h 25mMultiple Airlines
Deal found 10/12£933
Fri 12/1217:25YYZ - BFS
2 stops18h 10mMultiple Airlines
Sat 20/1222:25BFS - YYZ
3 stops26h 25mMultiple Airlines
Deal found 10/12£943

Find flight deals from Ontario to Belfast Intl

Keep the following information in mind while searching for Ontario to Belfast Intl flight deals. Data was last updated 12 December 2025.

Round-trip from

£455

One-way from

£346

Popular in

July

Cheapest in

October

Average price

£960
7/4-14/4
  • 7/4-14/4
  • 4 total stops
  • 56h 35m total
  • Ontario to Belfast
Search Deals
15/2
  • 15/2
  • 3 total stops
  • 29h 55m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£251 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (£102 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ontario to Belfast Intl 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 858,174 searches. Data last updated 12 December 2025.
Use the filters below to find and compare flights from Ontario to Belfast Intl Airport that are best for you.

Fly from

Ontario

Fly to

Belfast Intl

Route

Depart

Return

Price

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 24/1

21:35-17:40

1 stop15h 05m

Belfast Intl

Sat 31/1

08:10-15:00

1 stop11h 50m

£490

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 7/4

20:15-21:20

1 stop20h 05m

Belfast Intl

Tue 14/4

16:05-12:40

1 stop25h 35m

£534

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 25/1

19:40-18:55

2 stops18h 15m

Belfast Intl

Sun 1/2

12:25-21:15

3 stops37h 50m

£539

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 8/1

21:35-22:20

1 stop19h 45m

Belfast Intl

Thu 15/1

18:55-15:00

1 stop25h 05m

£600

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 7/1

19:55-19:20

1 stop18h 25m

Belfast Intl

Wed 14/1

06:00-21:15

2 stops20h 15m

£608

TorontoBelfast

YTZ - BFS

YTZBFS

Toronto Island

Sun 25/1

13:45-13:50

2 stops19h 05m

Belfast Intl

Sun 1/2

06:30-17:25

2 stops15h 55m

£660

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Fri 30/1

16:40-15:10

3 stops17h 30m

Belfast Intl

Wed 4/2

07:55-00:39

3 stops21h 44m

£744

TorontoBelfast

YTZ - BFS

YTZBFS

Toronto Island

Sat 24/1

14:00-21:40

3 stops26h 40m

Belfast Intl

Sat 31/1

07:55-10:35

3 stops31h 40m

£998

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Sun 15/2

09:25-20:20

3 stops29h 55m

£346

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Best time to book a flight from Ontario to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Ontario with our price prediction graph.
Estimated return 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 Ontario to Belfast Intl Airport
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 Ontario to Belfast Intl. 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 Region of Ontario to Belfast Intl Airport?

    Most travelers choose Toronto Pearson Intl - Belfast Intl, Toronto Island - Belfast Intl or Montreal Pierre Elliott Trudeau Intl - Belfast Intl when deciding on the best route from Region of Ontario to Belfast Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Belfast Intl 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

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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

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

Need flexible booking options for your flight to Belfast Intl from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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

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