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Cheap flights from Ontario to Northern Ireland from £234

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
21 Jan — 28 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Northern Ireland

Enter your travel dates to find the best prices.

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 22 December 2025.

Sat 27/1220:10YUL - BFS
1 stop18h 45mMultiple Airlines
Sat 24/122:25BFS - YUL
2 stops26h 50mMultiple Airlines
Deal found 20/12£709
Sat 27/1220:30YUL - BHD
1 stop12h 45mBritish Airways
Sat 24/111:35BHD - YUL
1 stop12h 10mBritish Airways
Deal found 20/12£738
Sat 27/1220:30YUL - BHD
1 stop15h 15mAmerican Airlines
Sat 24/106:35BHD - YUL
2 stops21h 09mAmerican Airlines
Deal found 20/12£762
Sat 27/1219:05YUL - BHD
2 stops16h 45mMultiple Airlines
Sat 24/117:20BHD - YUL
2 stops36h 23mMultiple Airlines
Deal found 20/12£862
Mon 22/1220:40YUL - BHD
1 stop30h 45mBritish Airways
Mon 29/1206:35BHD - YUL
1 stop17h 10mBritish Airways
Deal found 21/12£910
Sat 27/1220:30YUL - BHD
1 stop12h 45mBritish Airways
Mon 5/119:25BHD - YUL
1 stop28h 20mBritish Airways
Deal found 20/12£991
Sun 28/1220:40YUL - BHD
1 stop12h 15mMultiple Airlines
Mon 5/119:25BHD - YUL
1 stop28h 20mMultiple Airlines
Deal found 20/12£1,072
Sat 27/1220:10YUL - BFS
1 stop31h 00mMultiple Airlines
Mon 5/121:15BFS - YUL
2 stops43h 55mMultiple Airlines
Deal found 20/12£1,106
Sun 28/1207:30YUL - BHD
2 stops21h 50mBritish Airways
Mon 5/119:25BHD - YUL
1 stop28h 20mBritish Airways
Deal found 20/12£1,116
Sun 28/1220:10YUL - BFS
1 stop13h 00mMultiple Airlines
Mon 5/114:40BFS - YUL
1 stop27h 00mMultiple Airlines
Deal found 20/12£1,121
Mon 22/1217:20YOW - BHD
2 stops22h 40mKLM
Mon 29/1217:20BHD - YOW
2 stops26h 50mKLM
Deal found 21/12£1,128
Mon 22/1215:00YOW - BHD
2 stops18h 15mMultiple Airlines
Mon 29/1219:25BHD - YOW
2 stops28h 00mMultiple Airlines
Deal found 21/12£1,187

Find 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 22 December 2025.

Round-trip from

£433

One-way from

£234

Popular in

July

Cheapest in

October

Average price

£960
3/2-10/2
  • 3/2-10/2
  • 2 total stops
  • 38h 25m total
  • Ontario to Northern Ireland
Search Deals
16/3
  • 16/3
  • 2 total stops
  • 32h 20m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£252 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (£102 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 22 December 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

Tue 3/2

21:35-17:55

1 stop15h 20m

Belfast Intl

Tue 10/2

20:55-15:00

1 stop23h 05m

£433

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Mon 12/1

18:55-20:10

2 stops20h 15m

Belfast Intl

Tue 20/1

20:55-18:28

2 stops26h 33m

£493

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 1/4

22:00-15:35

1 stop12h 35m

Belfast City

Sun 12/4

19:10-16:05

1 stop25h 55m

£506

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 1/4

22:00-15:35

1 stop12h 35m

Belfast City

Mon 13/4

09:50-16:05

1 stop11h 15m

£506

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 23/3

23:05-16:05

1 stop13h 00m

Belfast City

Mon 30/3

09:50-16:05

1 stop11h 15m

£521

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 1/4

18:05-13:30

1 stop14h 25m

Belfast City

Mon 13/4

09:50-23:00

2 stops18h 10m

£522

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 2/4

22:35-09:00

1 stop29h 25m

Belfast Intl

Sun 12/4

20:50-16:00

1 stop24h 10m

£536

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Sat 17/1

20:10-21:40

2 stops20h 30m

Belfast Intl

Sat 24/1

22:25-20:15

2 stops26h 50m

£549

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Fri 3/4

18:05-08:50

1 stop9h 45m

Belfast City

Mon 13/4

09:50-20:10

1 stop15h 20m

£565

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Thu 2/4

18:05-11:10

1 stop12h 05m

Belfast City

Mon 13/4

09:50-16:05

1 stop11h 15m

£565

Flights are sorted by cheapest return flights first.

Deals found on 20/12

Showing 1-10 of 42 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, September is the cheapest month in which you can book a flight from Region of Ontario to Northern Ireland (average of £444). Flying from Region of Ontario to Northern Ireland in July is currently the most expensive (average of £748). 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.

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 £506, British Airways can have you in Northern Ireland from Region of Ontario in 12h 35m. 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, September is the cheapest month in which you can book a flight from Region of Ontario to Northern Ireland (average of £444). Flying from Region of Ontario to Northern Ireland in July is currently the most expensive (average of £748). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Ontario to Northern Ireland?

Cheapflights makes it easy to find Ontario to Northern Ireland flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Northern Ireland?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Northern Ireland for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ontario to Northern Ireland with no change fees?

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.

Can Cheapflights notify me if prices for flights from Ontario to Northern Ireland become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to Northern Ireland on Cheapflights with our Price Alert feature and get notified when better prices are available.

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