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Cheap flights from Ontario to Belfast Intl Airport from £152

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
16 Jun — 23 Jun1
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 17 May 2026.

Tue 9/622:15
YYZ
-
BFS
1 stop16h 35m
Multiple Airlines
Tue 16/607:35
BFS
-
YYZ
2 stops34h 45m
Multiple Airlines
Deal found 14/5£326
Tue 2/622:15
YYZ
-
BFS
1 stop19h 30m
Multiple Airlines
Tue 16/616:40
BFS
-
YYZ
2 stops25h 40m
Multiple Airlines
Deal found 13/5£347
Mon 1/622:15
YYZ
-
BFS
1 stop19h 50m
Multiple Airlines
Mon 15/621:55
BFS
-
YYZ
2 stops44h 25m
Multiple Airlines
Deal found 14/5£352
Wed 10/622:15
YYZ
-
BFS
2 stops17h 45m
Multiple Airlines
Wed 17/615:40
BFS
-
YYZ
3 stops35h 05m
Multiple Airlines
Deal found 12/5£383
Tue 9/606:55
YOW
-
BFS
2 stops28h 25m
Multiple Airlines
Tue 16/616:40
BFS
-
YOW
3 stops29h 55m
Multiple Airlines
Deal found 16/5£420
Tue 2/619:40
YOW
-
BFS
1 stop31h 00m
Multiple Airlines
Tue 16/606:15
BFS
-
YOW
1 stop11h 25m
Multiple Airlines
Deal found 16/5£482
Fri 12/606:45
YUL
-
BFS
2 stops28h 45m
Multiple Airlines
Thu 18/612:45
BFS
-
YUL
3 stops40h 40m
Multiple Airlines
Deal found 16/5£483
Tue 2/606:45
YUL
-
BFS
2 stops28h 35m
Multiple Airlines
Tue 16/620:10
BFS
-
YUL
2 stops29h 50m
Multiple Airlines
Deal found 16/5£489
Thu 10/906:55
YOW
-
BFS
2 stops31h 00m
Multiple Airlines
Thu 24/912:45
BFS
-
YOW
3 stops40h 35m
Multiple Airlines
Deal found 15/5£532
Mon 3/822:05
YUL
-
BFS
1 stop17h 45m
Multiple Airlines
Sat 22/810:40
BFS
-
YUL
1 stop32h 35m
Multiple Airlines
Deal found 14/5£587
Tue 9/613:55
YTZ
-
BFS
2 stops19h 05m
Multiple Airlines
Tue 16/606:15
BFS
-
YTZ
2 stops17h 43m
Multiple Airlines
Deal found 17/5£589
Tue 2/613:55
YTZ
-
BFS
2 stops19h 05m
Multiple Airlines
Tue 16/606:15
BFS
-
YTZ
2 stops15h 18m
Multiple Airlines
Deal found 13/5£594

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 17 May 2026.

Round-trip from

£326

One-way from

£152
9/6-16/6
  • 9/6-16/6
  • 3 total stops
  • 51h 20m total
  • Ontario to Belfast
Search Deals
3/6
  • 3/6
  • 1 total stop
  • 11h 45m total
  • Ontario to Belfast
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 17 May 2026.
Use the filters below to find and compare flights from Ontario to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 9/6

22:15-19:50

1 stop16h 35m

Belfast Intl

Tue 16/6

07:35-13:20

2 stops34h 45m

£326

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 2/6

19:15-16:20

1 stop16h 05m

Belfast Intl

Tue 16/6

16:45-11:00

1 stop23h 15m

£395

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 1/6

07:35-20:40

2 stops32h 05m

Belfast Intl

Mon 15/6

21:25-15:00

2 stops22h 35m

£413
Fastest return journey

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 10/6

22:15-15:00

1 stop11h 45m

Belfast Intl

Wed 17/6

06:05-15:50

2 stops14h 45m

£436

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Tue 2/6

19:40-07:40

1 stop31h 00m

Belfast Intl

Tue 16/6

06:15-12:40

1 stop11h 25m

£482

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Tue 9/6

19:40-07:40

1 stop31h 00m

Belfast Intl

Tue 16/6

06:15-12:40

1 stop11h 25m

£482

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Fri 12/6

06:45-16:30

2 stops28h 45m

Belfast Intl

Thu 18/6

12:45-00:25

3 stops40h 40m

£483

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Tue 2/6

06:45-16:20

2 stops28h 35m

Belfast Intl

Tue 16/6

20:10-21:00

2 stops29h 50m

£489

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Thu 10/9

06:55-18:55

2 stops31h 00m

Belfast Intl

Thu 24/9

12:45-00:20

3 stops40h 35m

£532

TorontoBelfast

YTZ - BFS

YTZBFS

Toronto Island

Tue 9/6

13:55-14:00

2 stops19h 05m

Belfast Intl

Tue 16/6

06:15-18:58

2 stops17h 43m

£589

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, 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.

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
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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