Cheap flights from Ontario to Northern Ireland from £185

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Round-trip from

£450

One-way from

£185

Popular in

July

Cheapest in

October

Average price

£704
British Airways
  • British Airways
  • 18/11-30/11
  • 2 total stops
  • 45h 45m total
  • Ontario to Northern Ireland
7/10
  • 7/10
  • 2 total stops
  • 14h 00m total
  • Ontario to Northern Ireland
Highest demand for flights based on searches. 30% potential increase in price (£275 potential increase over avg. return price).
Cheapest flight prices on average. 18% potential price decrease (£101 potential savings vs. average return price).
Average for round-trip flights in September 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 17 September 2025.

Tue 18/1120:40YUL - BHD
1 stop13h 10mBritish Airways
Sun 30/1115:10BHD - YUL
1 stop32h 35mBritish Airways
Deal found 15/9£450
Wed 19/1120:40YUL - BHD
1 stop12h 35mBritish Airways
Sun 30/1120:25BHD - YUL
1 stop27h 20mBritish Airways
Deal found 16/9£451
Tue 14/1023:50YYZ - BFS
1 stop26h 50mMultiple Airlines
Tue 21/1021:25BFS - YYZ
1 stop23h 40mMultiple Airlines
Deal found 16/9£485
Mon 29/917:59YYZ - BHD
2 stops16h 41mAmerican Airlines
Mon 6/1009:50BHD - YYZ
2 stops17h 39mAmerican Airlines
Deal found 15/9£485
Tue 21/1018:05YYZ - BHD
1 stop13h 55mBritish Airways
Fri 31/1008:45BHD - YYZ
1 stop11h 05mBritish Airways
Deal found 14/9£499
Wed 15/1015:49YYZ - BHD
2 stops15h 06mAmerican Airlines
Wed 22/1006:50BHD - YYZ
2 stops15h 29mAmerican Airlines
Deal found 15/9£516
Wed 15/1022:10YYZ - BFS
2 stops18h 50mMultiple Airlines
Wed 22/1020:30BFS - YYZ
3 stops40h 41mMultiple Airlines
Deal found 15/9£519
Tue 18/1114:29YUL - BHD
2 stops19h 21mAmerican Airlines
Sun 30/1106:30BHD - YUL
1 stop17h 15mAmerican Airlines
Deal found 15/9£520
Mon 29/915:11YYZ - BHD
2 stops21h 19mBritish Airways
Mon 6/1018:30BHD - YYZ
1 stop26h 30mBritish Airways
Deal found 15/9£521
Tue 14/1022:15YYZ - BHD
1 stop12h 05mAmerican Airlines
Tue 21/1006:35BHD - YYZ
2 stops17h 09mAmerican Airlines
Deal found 16/9£524
Tue 21/1015:10YYZ - BHD
2 stops14h 25mAmerican Airlines
Fri 31/1006:45BHD - YYZ
2 stops15h 59mAmerican Airlines
Deal found 14/9£528
Mon 6/1015:10YYZ - BHD
2 stops19h 30mBritish Airways
Mon 13/1018:30BHD - YYZ
2 stops32h 00mBritish Airways
Deal found 15/9£541

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 17 September 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

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Tue 18/11

20:40-14:50

1 stop13h 10m

Belfast City

Sun 30/11

15:10-18:45

1 stop32h 35m

£450

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

20:40-14:15

1 stop12h 35m

Belfast City

Sun 30/11

20:25-18:45

1 stop27h 20m

£450

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 28/1

21:35-13:35

1 stop11h 00m

Belfast City

Fri 6/2

07:20-15:00

1 stop12h 40m

£460

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 28/1

21:35-17:55

1 stop15h 20m

Belfast Intl

Fri 6/2

06:30-15:00

1 stop13h 30m

£474

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 29/9

17:59-15:40

2 stops16h 41m

Belfast City

Mon 6/10

09:50-22:29

2 stops17h 39m

£485

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 14/10

23:50-07:40

1 stop26h 50m

Belfast Intl

Tue 21/10

21:25-16:05

1 stop23h 40m

£485

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 28/1

18:20-14:15

2 stops14h 55m

Belfast City

Fri 6/2

06:45-14:50

1 stop13h 05m

£496

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Tue 21/10

18:05-13:00

1 stop13h 55m

Belfast City

Fri 31/10

08:45-15:50

1 stop11h 05m

£499

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 15/10

22:10-22:00

2 stops18h 50m

Belfast Intl

Wed 22/10

20:30-08:11

3 stops40h 41m

£519

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Tue 18/11

14:29-14:50

2 stops19h 21m

Belfast City

Sun 30/11

06:30-18:45

1 stop17h 15m

£520

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 36 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 £450, British Airways can have you in Northern Ireland from Region of Ontario in 13h 10m. The distance between Region of Ontario and Northern Ireland is about 2953 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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