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Cheap flights from Ontario to Northern Ireland from £346

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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
11 Jan — 18 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 12 December 2025.

Thu 11/1207:05YYZ - BFS
3 stops31h 30mMultiple Airlines
Fri 19/1208:45BFS - YYZ
2 stops32h 45mMultiple Airlines
Deal found 10/12£772
Wed 31/1217:50YYZ - BHD
1 stop18h 00mDelta
Wed 7/117:20BHD - YYZ
1 stop30h 55mDelta
Deal found 11/12£851
Wed 31/1218:45YYZ - BHD
2 stops17h 05mMultiple Airlines
Wed 7/117:20BHD - YYZ
1 stop30h 55mMultiple Airlines
Deal found 11/12£871
Sun 14/1211:20YUL - BFS
2 stops30h 05mMultiple Airlines
Tue 16/1208:35BFS - YUL
2 stops32h 35mMultiple Airlines
Deal found 10/12£888
Thu 11/1207:05YYZ - BFS
3 stops31h 30mMultiple Airlines
Sat 20/1222:25BFS - YYZ
3 stops26h 25mMultiple Airlines
Deal found 10/12£933
Fri 12/1217:25YYZ - BFS
2 stops18h 10mMultiple Airlines
Sat 20/1222:25BFS - YYZ
3 stops26h 25mMultiple Airlines
Deal found 10/12£943
Sat 27/1221:35YYZ - BHD
1 stop18h 15mMultiple Airlines
Wed 31/1207:25BHD - YYZ
1 stop12h 35mMultiple Airlines
Deal found 10/12£959
Sat 27/1217:50YYZ - BHD
1 stop22h 10mKLM
Wed 31/1206:30BHD - YYZ
2 stops19h 10mKLM
Deal found 10/12£1,090
Sun 14/1211:25YUL - BHD
3 stops28h 25mMultiple Airlines
Tue 16/1211:05BHD - YUL
2 stops27h 30mMultiple Airlines
Deal found 10/12£1,185
Sun 14/1223:00YUL - BHD
2 stops17h 00mKLM
Tue 16/1217:20BHD - YUL
1 stop29h 00mKLM
Deal found 11/12£1,322

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 12 December 2025.

Round-trip from

£447

One-way from

£346

Popular in

July

Cheapest in

October

Average price

£960
7/4-14/4
  • 7/4-14/4
  • 4 total stops
  • 54h 00m total
  • Ontario to Northern Ireland
Search Deals
15/2
  • 15/2
  • 3 total stops
  • 29h 55m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£251 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 12 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

Sat 24/1

21:35-17:40

1 stop15h 05m

Belfast Intl

Sat 31/1

08:10-15:00

1 stop11h 50m

£490

OttawaBelfast

YOW - BHD

YOWBHD

Ottawa

Fri 30/1

15:05-13:35

2 stops17h 30m

Belfast City

Wed 4/2

07:25-18:28

2 stops16h 03m

£509

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 4/3

17:40-09:10

1 stop10h 30m

Belfast City

Sun 8/3

20:25-21:59

2 stops29h 34m

£513

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 7/4

20:15-21:20

1 stop20h 05m

Belfast Intl

Tue 14/4

16:05-12:40

1 stop25h 35m

£534

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 25/1

19:40-18:55

2 stops18h 15m

Belfast Intl

Sun 1/2

12:25-21:15

3 stops37h 50m

£539

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Tue 7/4

19:29-08:50

2 stops32h 21m

Belfast City

Tue 14/4

13:40-20:10

1 stop11h 30m

£546

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Tue 13/1

20:40-14:50

1 stop13h 10m

Belfast City

Thu 22/1

15:05-18:45

1 stop32h 40m

£553

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

20:40-07:30

1 stop29h 50m

Belfast City

Sun 25/1

09:10-18:45

1 stop14h 35m

£587

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Sat 11/4

18:05-10:10

1 stop11h 05m

Belfast City

Sat 25/4

07:05-18:35

2 stops16h 30m

£589

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 8/1

21:35-22:20

1 stop19h 45m

Belfast Intl

Thu 15/1

18:55-15:00

1 stop25h 05m

£600

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 24 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 £513, British Airways can have you in Northern Ireland from Region of Ontario in 10h 30m. The distance between Region of Ontario and Northern Ireland is about 3254 mi.

  • 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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