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Cheap flights from Ontario to Belfast Intl Airport from £250

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 26/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap 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 September 2025.

Round-trip from

£428

One-way from

£250

Popular in

July

Cheapest in

October

Average price

£709
28/9-5/5
  • 28/9-5/5
  • 3 total stops
  • 37h 40m total
  • Ontario to Belfast
Search Deals
26/10
  • 26/10
  • 2 total stops
  • 33h 20m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (£292 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 19% potential price decrease (£104 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Ontario to Belfast Intl

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 September 2025.

Sun 28/922:15YYZ - BFS
1 stop12h 40mMultiple Airlines
Tue 5/517:55BFS - YYZ
2 stops25h 00mMultiple Airlines
Deal found 10/9£428
Mon 29/922:15YYZ - BFS
1 stop12h 55mMultiple Airlines
Mon 13/1015:30BFS - YYZ
2 stops30h 06mMultiple Airlines
Deal found 11/9£431
Tue 30/922:15YYZ - BFS
1 stop11h 20mMultiple Airlines
Mon 6/1021:35BFS - YYZ
2 stops24h 15mMultiple Airlines
Deal found 12/9£433
Sun 28/922:15YYZ - BFS
1 stop12h 40mMultiple Airlines
Sun 3/522:15BFS - YYZ
2 stops20h 40mMultiple Airlines
Deal found 10/9£438
Tue 30/922:15YYZ - BFS
1 stop13h 25mMultiple Airlines
Sun 3/522:15BFS - YYZ
2 stops20h 40mMultiple Airlines
Deal found 10/9£439
Sat 11/1022:15YYZ - BFS
1 stop28h 35mMultiple Airlines
Fri 17/1006:05BFS - YYZ
2 stops16h 05mMultiple Airlines
Deal found 11/9£443
Sun 28/922:15YYZ - BFS
1 stop12h 40mMultiple Airlines
Mon 4/522:20BFS - YYZ
2 stops20h 35mMultiple Airlines
Deal found 10/9£447
Sun 28/922:15YYZ - BFS
1 stop12h 40mMultiple Airlines
Wed 6/520:10BFS - YYZ
2 stops22h 45mMultiple Airlines
Deal found 10/9£451
Tue 30/922:15YYZ - BFS
1 stop13h 25mMultiple Airlines
Wed 6/520:10BFS - YYZ
2 stops22h 45mMultiple Airlines
Deal found 10/9£452
Sun 28/922:15YYZ - BFS
1 stop12h 40mMultiple Airlines
Fri 8/522:15BFS - YYZ
2 stops20h 40mMultiple Airlines
Deal found 10/9£459
Sun 30/1117:25YUL - BFS
2 stops15h 25mMultiple Airlines
Thu 19/206:30BFS - YUL
2 stops16h 55mMultiple Airlines
Deal found 10/9£475
Sat 25/1018:00YUL - BFS
2 stops19h 40mMultiple Airlines
Sat 1/1108:10BFS - YUL
2 stops30h 55mMultiple Airlines
Deal found 10/9£481

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 September 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

Mon 29/9

22:15-16:10

1 stop12h 55m

Belfast Intl

Mon 13/10

15:30-16:36

2 stops30h 06m

£431

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 30/9

22:15-14:35

1 stop11h 20m

Belfast Intl

Mon 6/10

21:35-16:50

2 stops24h 15m

£433

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 28/9

22:15-15:55

1 stop12h 40m

Belfast Intl

Sun 3/5

22:15-13:55

2 stops20h 40m

£438

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 30/9

22:15-16:40

1 stop13h 25m

Belfast Intl

Sun 3/5

22:15-13:55

2 stops20h 40m

£439

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 11/10

22:15-07:50

1 stop28h 35m

Belfast Intl

Fri 17/10

06:05-17:10

2 stops16h 05m

£443

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 30/9

22:15-16:40

1 stop13h 25m

Belfast Intl

Mon 4/5

22:20-13:55

2 stops20h 35m

£447

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 28/9

22:15-15:55

1 stop12h 40m

Belfast Intl

Mon 4/5

22:20-13:55

2 stops20h 35m

£447

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 28/9

22:15-15:55

1 stop12h 40m

Belfast Intl

Wed 6/5

20:10-13:55

2 stops22h 45m

£451

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 30/9

22:15-16:40

1 stop13h 25m

Belfast Intl

Wed 6/5

20:10-13:55

2 stops22h 45m

£452

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 30/9

22:15-16:40

1 stop13h 25m

Belfast Intl

Fri 8/5

22:15-13:55

2 stops20h 40m

£460

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 21 results
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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

What is the cheapest month to book a flight from Region of Ontario to Belfast Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to Belfast Intl Airport (average of £67). Flying from Region of Ontario to Belfast Intl Airport in July is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Region of Ontario to Belfast Intl Airport?

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, Montreal Pierre Elliott Trudeau Intl - Belfast Intl or Toronto Island - 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.

  • What is the cheapest month to book a flight from Region of Ontario to Belfast Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Region of Ontario to Belfast Intl Airport (average of £67). Flying from Region of Ontario to Belfast Intl Airport in July is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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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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