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Cheap flights from Ontario to Belfast Intl Airport from £397

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 27/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
13 Dec — 20 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 13 November 2025.

Mon 17/1121:35YYZ - BFS
1 stop31h 30mMultiple Airlines
Mon 24/1120:55BFS - YYZ
1 stop23h 05mMultiple Airlines
Deal found 10/11£534
Mon 8/1212:00YYZ - BFS
2 stops28h 40mMultiple Airlines
Mon 15/1208:40BFS - YYZ
2 stops18h 04mMultiple Airlines
Deal found 10/11£583
Wed 12/1121:35YYZ - BFS
1 stop29h 55mMultiple Airlines
Thu 20/1106:30BFS - YYZ
1 stop13h 30mMultiple Airlines
Deal found 10/11£614
Thu 13/1121:35YYZ - BFS
1 stop19h 45mMultiple Airlines
Sat 15/1108:10BFS - YYZ
1 stop11h 50mMultiple Airlines
Deal found 9/11£664
Thu 20/1118:50YYZ - BFS
2 stops22h 30mMultiple Airlines
Sun 23/1106:00BFS - YYZ
3 stops39h 55mMultiple Airlines
Deal found 10/11£771
Sat 27/1209:30YTZ - BFS
2 stops20h 25mMultiple Airlines
Sat 3/109:40BFS - YTZ
3 stops31h 39mMultiple Airlines
Deal found 12/11£1,254
Fri 26/1216:30YTZ - BFS
2 stops16h 20mMultiple Airlines
Fri 2/107:00BFS - YTZ
3 stops19h 50mMultiple Airlines
Deal found 11/11£1,413

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 13 November 2025.

Round-trip from

£472

One-way from

£397

Popular in

July

Cheapest in

October

Average price

£1,271
9/2-16/2
  • 9/2-16/2
  • 2 total stops
  • 32h 05m total
  • Ontario to Belfast
Search Deals
27/12
  • 27/12
  • 3 total stops
  • 41h 25m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£261 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (£106 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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 13 November 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 9/2

21:35-21:10

1 stop18h 35m

Belfast Intl

Mon 16/2

06:30-15:00

1 stop13h 30m

£472

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 11/3

22:35-22:20

1 stop19h 45m

Belfast Intl

Tue 24/3

08:35-16:00

1 stop11h 25m

£490

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Wed 11/2

10:15-13:45

2 stops22h 30m

Belfast Intl

Mon 16/2

06:30-18:25

2 stops16h 55m

£500

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 14/3

20:15-10:10

1 stop9h 55m

Belfast Intl

Sat 21/3

21:05-12:40

1 stop19h 35m

£533

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Fri 1/5

23:50-21:00

1 stop16h 10m

Belfast Intl

Fri 8/5

07:05-16:00

1 stop13h 55m

£535

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

20:10-22:05

1 stop20h 55m

Belfast Intl

Fri 23/1

17:30-12:40

1 stop24h 10m

£543

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Mon 12/1

21:45-20:10

2 stops17h 25m

Belfast Intl

Fri 23/1

17:30-12:40

1 stop24h 10m

£557

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Sun 11/1

21:45-20:10

2 stops17h 25m

Belfast Intl

Fri 23/1

17:30-12:40

1 stop24h 10m

£561

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Sun 11/1

21:45-20:10

2 stops17h 25m

Belfast Intl

Wed 21/1

17:30-12:40

1 stop24h 10m

£565

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Tue 13/1

20:10-20:15

2 stops19h 05m

Belfast Intl

Fri 23/1

17:30-12:40

1 stop24h 10m

£570

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Showing 1-10 of 23 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
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
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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