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Cheap flights from Ontario to Belfast Intl Airport from £186

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
10 Sep — 17 Sep1
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 11 August 2026.

Mon 14/922:15 -
1 stop17h 25m
Tue 22/910:30 -
3 stops40h 15m
Deal found 11/8£346
Tue 15/919:15 -
1 stop19h 25m
Tue 22/921:15 -
1 stop18h 45m
Deal found 6/8£421
Thu 1/1007:35 -
2 stops30h 25m
Fri 16/1006:15 -
1 stop14h 25m
Deal found 9/8£454
Wed 23/916:00 -
2 stops23h 15m
Thu 8/1020:55 -
1 stop20h 45m
Deal found 7/8£471
Thu 24/910:00 -
2 stops28h 20m
Thu 1/1021:10 -
1 stop20h 30m
Deal found 10/8£473
Tue 15/908:19 -
2 stops24h 41m
Tue 22/906:15 -
2 stops34h 25m
Deal found 10/8£482
Wed 16/921:55 -
1 stop14h 10m
Sat 3/1006:00 -
1 stop14h 40m
Deal found 7/8£484
Tue 15/919:00 -
2 stops23h 20m
Sat 26/906:20 -
2 stops19h 10m
Deal found 7/8£513
Thu 24/910:00 -
2 stops28h 20m
Thu 1/1021:10 -
2 stops26h 45m
Deal found 10/8£522
Sat 19/922:05 -
1 stop17h 20m
Mon 5/1006:10 -
2 stops18h 20m
Deal found 9/8£525
Fri 18/922:05 -
2 stops18h 45m
Mon 21/909:30 -
2 stops31h 05m
Deal found 11/8£551
Fri 11/922:05 -
1 stop30h 20m
Mon 21/915:35 -
1 stop25h 00m
Deal found 11/8£552

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 11 August 2026.

Round-trip from

£346

One-way from

£186
14/9-22/9
  • 14/9-22/9
  • 4 total stops
  • 57h 40m total
  • Ontario to Belfast
Search Deals
18/9
  • 18/9
  • 1 total stop
  • 18h 55m 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 11 August 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 Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Mon 14/9

22:15-20:40

1 stop17h 25m

Belfast Intl

Tue 22/9

10:30-21:45

3 stops40h 15m

£346

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Tue 15/9

19:15-19:40

1 stop19h 25m

Belfast Intl

Tue 22/9

21:15-11:00

1 stop18h 45m

£421

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Thu 1/10

07:35-19:00

2 stops30h 25m

Belfast Intl

Fri 16/10

19:55-14:10

2 stops23h 15m

£454

OttawaBelfast

YOW Ottawa - BFS Belfast Intl

YOWBFS

Ottawa

Wed 23/9

16:00-20:15

2 stops23h 15m

Belfast Intl

Thu 8/10

20:55-12:40

1 stop20h 45m

£471

OttawaBelfast

YOW Ottawa - BFS Belfast Intl

YOWBFS

Ottawa

Thu 24/9

10:00-19:20

2 stops28h 20m

Belfast Intl

Thu 1/10

21:10-12:40

1 stop20h 30m

£473

TorontoBelfast

YTZ Toronto Island - BFS Belfast Intl

YTZBFS

Toronto Island

Tue 15/9

08:19-14:00

2 stops24h 41m

Belfast Intl

Tue 22/9

06:15-11:40

2 stops34h 25m

£482
Fastest return journey

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Wed 16/9

21:55-17:05

1 stop14h 10m

Belfast Intl

Sat 3/10

06:00-15:40

1 stop14h 40m

£484

MontrealBelfast

YUL Montreal Pierre Elliott Trudeau Intl - BFS Belfast Intl

YULBFS

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

19:00-23:20

2 stops23h 20m

Belfast Intl

Sat 26/9

06:20-20:30

2 stops19h 10m

£513

TorontoBelfast

YTZ Toronto Island - BFS Belfast Intl

YTZBFS

Toronto Island

Thu 24/9

10:00-19:20

2 stops28h 20m

Belfast Intl

Thu 1/10

21:10-18:55

2 stops26h 45m

£522

MontrealBelfast

YUL Montreal Pierre Elliott Trudeau Intl - BFS Belfast Intl

YULBFS

Montreal Pierre Elliott Trudeau Intl

Sat 19/9

22:05-20:25

1 stop17h 20m

Belfast Intl

Mon 5/10

06:10-19:30

2 stops18h 20m

£525

Flights are sorted by cheapest return flights first.

Deals found on 6/8

Showing 1-10 of 28 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, 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

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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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