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Cheap flights from Ontario to Belfast Intl Airport from £149

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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
18 Jul — 25 Jul1
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 18 June 2026.

Mon 10/822:15
YYZ
-
BFS
1 stop28h 50m
Multiple Airlines
Thu 27/814:50
BFS
-
YYZ
2 stops27h 30m
Multiple Airlines
Deal found 17/6£350
Mon 10/822:15
YYZ
-
BFS
1 stop19h 50m
Multiple Airlines
Fri 28/806:20
BFS
-
YYZ
2 stops13h 35m
Multiple Airlines
Deal found 17/6£390
Mon 27/722:15
YYZ
-
BFS
1 stop18h 20m
Multiple Airlines
Wed 12/815:40
BFS
-
YYZ
3 stops35h 05m
Multiple Airlines
Deal found 18/6£411
Thu 13/811:00
YYZ
-
BFS
2 stops26h 55m
Multiple Airlines
Tue 25/805:55
BFS
-
YYZ
1 stop13h 15m
Multiple Airlines
Deal found 17/6£414
Mon 17/811:00
YYZ
-
BFS
2 stops19h 15m
Multiple Airlines
Sat 22/806:55
BFS
-
YYZ
1 stop12h 15m
Multiple Airlines
Deal found 18/6£416
Thu 13/807:35
YYZ
-
BFS
2 stops30h 20m
Multiple Airlines
Thu 27/806:40
BFS
-
YYZ
1 stop12h 30m
Multiple Airlines
Deal found 17/6£419
Tue 14/722:15
YYZ
-
BFS
1 stop16h 35m
Multiple Airlines
Tue 21/723:30
BFS
-
YYZ
1 stop19h 40m
Multiple Airlines
Deal found 16/6£423
Sat 15/811:00
YYZ
-
BFS
2 stops26h 55m
Multiple Airlines
Mon 24/806:30
BFS
-
YYZ
1 stop12h 40m
Multiple Airlines
Deal found 17/6£429
Fri 2/1019:15
YYZ
-
BFS
1 stop21h 35m
Multiple Airlines
Mon 12/1021:35
BFS
-
YYZ
1 stop18h 25m
Multiple Airlines
Deal found 16/6£432
Sun 26/717:45
YUL
-
BFS
2 stops17h 10m
Multiple Airlines
Mon 3/806:40
BFS
-
YUL
2 stops22h 45m
Multiple Airlines
Deal found 14/6£503
Fri 18/906:55
YOW
-
BFS
2 stops33h 55m
Multiple Airlines
Fri 25/920:15
BFS
-
YOW
2 stops33h 10m
Multiple Airlines
Deal found 17/6£515
Tue 25/817:45
YUL
-
BFS
2 stops23h 30m
Multiple Airlines
Wed 2/920:10
BFS
-
YUL
1 stop23h 05m
Multiple Airlines
Deal found 16/6£518

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 18 June 2026.

Round-trip from

£350

One-way from

£149
10/8-27/8
  • 10/8-27/8
  • 3 total stops
  • 56h 20m total
  • Ontario to Belfast
Search Deals
7/7
  • 7/7
  • 1 total stop
  • 28h 50m 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 18 June 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

Mon 17/8

11:00-11:15

2 stops19h 15m

Belfast Intl

Sat 22/8

06:55-14:10

1 stop12h 15m

£416

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 13/8

11:00-18:55

2 stops26h 55m

Belfast Intl

Wed 26/8

05:55-14:10

1 stop13h 15m

£419

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 27/7

11:00-11:15

2 stops19h 15m

Belfast Intl

Wed 12/8

05:55-14:10

1 stop13h 15m

£430

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Fri 2/10

19:15-21:50

1 stop21h 35m

Belfast Intl

Mon 12/10

21:35-11:00

1 stop18h 25m

£432

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 10/8

22:15-23:05

1 stop19h 50m

Belfast Intl

Mon 24/8

06:30-14:10

1 stop12h 40m

£440

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 23/9

19:15-17:05

1 stop16h 50m

Belfast Intl

Wed 7/10

14:20-11:00

1 stop25h 40m

£446
Fastest return journey

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 3/8

19:15-12:30

1 stop12h 15m

Belfast Intl

Sun 9/8

21:25-11:00

1 stop18h 35m

£456

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 19/8

19:15-06:45

1 stop30h 30m

Belfast Intl

Mon 31/8

21:35-11:00

1 stop18h 25m

£469

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 6/10

23:50-21:20

1 stop16h 30m

Belfast Intl

Tue 20/10

21:25-16:00

1 stop23h 35m

£503

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Fri 18/9

06:55-21:50

2 stops33h 55m

Belfast Intl

Fri 25/9

20:15-00:25

2 stops33h 10m

£515

Flights are sorted by cheapest return flights first.

Deals found on 17/6

Showing 1-10 of 29 resultsSorted by cheapest first
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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
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 Ottawa - 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

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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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