Cheap flights from Ontario to Northern Ireland 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
2 Sep — 9 Sep1
1 adult

Cheap flight deals from Ontario to Northern Ireland

Keep the following information in mind while searching for Ontario to Northern Ireland flight deals. Data was last updated 28 August 2025.

Round-trip from

£446

One-way from

£149

Popular in

July

Cheapest in

October

Average price

£794
6/10-10/10
  • 6/10-10/10
  • 3 total stops
  • 38h 00m total
  • Ontario to Northern Ireland
11/10
  • 11/10
  • 1 total stop
  • 18h 50m total
  • Ontario to Northern Ireland
Highest demand for flights based on searches. 31% potential increase in price (£295 potential increase over avg. return price).
Cheapest flight prices on average. 19% potential price decrease (£105 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from Ontario to Northern Ireland

Cheapest flights from Ontario to Northern Ireland
Explore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 August 2025.

Mon 6/1022:15YYZ - BFS
1 stop12h 55mMultiple Airlines
Fri 10/1021:05BFS - YYZ
2 stops25h 05mMultiple Airlines
Deal found 27/8£446
Mon 6/1014:45YTZ - BFS
2 stops20h 05mMultiple Airlines
Fri 10/1006:05BFS - YTZ
2 stops17h 05mMultiple Airlines
Deal found 27/8£459
Sun 26/1023:55YYZ - BFS
1 stop17h 35mMultiple Airlines
Fri 31/1006:00BFS - YYZ
1 stop20h 10mMultiple Airlines
Deal found 26/8£461
Mon 13/1022:15YYZ - BFS
1 stop19h 15mMultiple Airlines
Wed 29/1010:40BFS - YYZ
2 stops33h 05mMultiple Airlines
Deal found 27/8£468
Sat 11/1022:15YYZ - BFS
1 stop19h 15mMultiple Airlines
Sat 18/1019:35BFS - YYZ
3 stops43h 24mMultiple Airlines
Deal found 26/8£471
Thu 25/922:15YYZ - BFS
1 stop20h 15mMultiple Airlines
Thu 2/1008:20BFS - YYZ
1 stop10h 50mMultiple Airlines
Deal found 26/8£472
Mon 13/1018:00YYZ - BHD
2 stops14h 45mMultiple Airlines
Wed 29/1007:25BHD - YYZ
1 stop12h 35mMultiple Airlines
Deal found 27/8£494
Mon 13/1018:05YYZ - BHD
1 stop9h 45mBritish Airways
Wed 29/1006:35BHD - YYZ
1 stop13h 15mBritish Airways
Deal found 27/8£500
Mon 6/1018:05YYZ - BHD
1 stop9h 45mBritish Airways
Mon 13/1019:30BHD - YYZ
1 stop29h 40mBritish Airways
Deal found 27/8£511
Tue 18/1120:40YUL - BHD
1 stop13h 10mBritish Airways
Sun 30/1120:25BHD - YUL
1 stop27h 20mBritish Airways
Deal found 27/8£513
Mon 13/1019:24YYZ - BHD
2 stops15h 16mAmerican Airlines
Wed 29/1006:35BHD - YYZ
2 stops18h 55mAmerican Airlines
Deal found 27/8£522
Mon 6/1016:15YYZ - BHD
2 stops15h 40mAmerican Airlines
Mon 13/1012:15BHD - YYZ
1 stop12h 55mAmerican Airlines
Deal found 27/8£528

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ontario to Northern Ireland 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 28 August 2025.
Use the filters below to find and compare flights from Ontario to Northern Ireland that are best for you.

Fly from

Ontario

Fly to

Northern Ireland

Route

Depart

Return

Price

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 6/10

22:15-16:10

1 stop12h 55m

Belfast Intl

Fri 10/10

21:05-17:10

2 stops25h 05m

£446

TorontoBelfast

YTZ - BFS

YTZBFS

Toronto Island

Mon 6/10

14:45-15:50

2 stops20h 05m

Belfast Intl

Fri 10/10

06:05-18:10

2 stops17h 05m

£459

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 26/10

23:55-21:30

1 stop17h 35m

Belfast Intl

Fri 31/10

06:00-22:10

1 stop20h 10m

£461

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 13/10

22:15-22:30

1 stop19h 15m

Belfast Intl

Wed 29/10

10:40-15:45

2 stops33h 05m

£468

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 11/10

22:15-22:30

1 stop19h 15m

Belfast Intl

Sat 18/10

19:35-09:59

3 stops43h 24m

£471

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 25/9

22:15-23:30

1 stop20h 15m

Belfast Intl

Thu 2/10

08:20-14:10

1 stop10h 50m

£472

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 13/10

18:00-13:45

2 stops14h 45m

Belfast City

Wed 29/10

07:25-16:00

1 stop12h 35m

£494

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 13/10

18:05-08:50

1 stop9h 45m

Belfast City

Wed 29/10

06:35-15:50

1 stop13h 15m

£500

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 6/10

18:05-08:50

1 stop9h 45m

Belfast City

Mon 13/10

19:30-20:10

1 stop29h 40m

£511

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Tue 18/11

20:40-14:50

1 stop13h 10m

Belfast City

Sun 30/11

20:25-18:45

1 stop27h 20m

£513

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 43 results
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Best time to book a flight from Ontario to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland 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 Northern Ireland

What is the cheapest month to book a flight from Region of Ontario to Northern Ireland?

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to Northern Ireland (average of £67). Flying from Region of Ontario to Northern Ireland 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 Northern Ireland?

Related info for your journey

Find useful and relevant information for your journey from Ontario to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Region of Ontario to Northern Ireland?

    For as low as £500, British Airways can have you in Northern Ireland from Region of Ontario in 9h 45m. The distance between Region of Ontario and Northern Ireland is about 3254 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Ontario to Northern Ireland that include hotel bookings?

    Yes. In addition to deals on Ontario to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Northern Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Northern Ireland.

  • Can I find deals for business class flights from Ontario to Northern Ireland?

    Yes. Cheapflights offers flight deals from Ontario to Northern Ireland 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 Northern Ireland?

    Currently, January is the cheapest month in which you can book a flight from Region of Ontario to Northern Ireland (average of £67). Flying from Region of Ontario to Northern Ireland 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.

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Need flexible booking options for your flight to Northern Ireland from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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