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Cheap flights from Ontario to Northern Ireland from £299

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — 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.

Best flights from Ontario to Northern Ireland
Discover carefully curated flight deals from Ontario to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.

Wed 11/207:16ONT - BHD
2 stops25h 19mBritish Airways
Sun 15/206:30BHD - ONT
2 stops24h 19mBritish Airways
Deal found 9/12£626
Sun 25/116:45ONT - BHD
2 stops17h 55mBritish Airways
Sun 1/210:40BHD - ONT
2 stops19h 33mBritish Airways
Deal found 11/12£626
Wed 4/206:00ONT - BHD
2 stops26h 35mBritish Airways
Sun 8/215:10BHD - ONT
2 stops37h 00mBritish Airways
Deal found 9/12£626
Fri 10/415:05ONT - BHD
2 stops16h 25mBritish Airways
Fri 24/409:30BHD - ONT
2 stops20h 26mBritish Airways
Deal found 10/12£1,355
Fri 27/310:56ONT - BHD
2 stops16h 34mBritish Airways
Mon 6/419:30BHD - ONT
2 stops54h 16mBritish Airways
Deal found 11/12£1,409

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

£626

One-way from

£299

Popular in

June

Cheapest in

October

Average price

£820
British Airways
  • British Airways
  • 4/2-8/2
  • 4 total stops
  • 63h 35m total
  • Ontario to Northern Ireland
Search Deals
British Airways
  • British Airways
  • 26/1
  • 2 total stops
  • 15h 20m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£104 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£23 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

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 11/2

07:16-16:35

2 stops25h 19m

Belfast City

Sun 15/2

06:30-22:49

2 stops24h 19m

£626

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Sun 25/1

16:45-18:40

2 stops17h 55m

Belfast City

Sun 1/2

10:40-22:13

2 stops19h 33m

£626

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 4/2

06:00-16:35

2 stops26h 35m

Belfast City

Sun 8/2

15:10-20:10

2 stops37h 00m

£626

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Fri 10/4

15:05-15:30

2 stops16h 25m

Belfast City

Fri 24/4

09:30-21:56

2 stops20h 26m

£1,355

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Fri 27/3

10:56-10:30

2 stops16h 34m

Belfast City

Mon 6/4

19:30-17:46

2 stops54h 16m

£1,409

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Mon 26/1

16:45-16:05

2 stops15h 20m

£299

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Sun 25/1

16:45-16:50

2 stops16h 05m

£308

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Tue 27/1

10:58-14:50

2 stops19h 52m

£308

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 28/1

12:41-16:50

2 stops20h 09m

£320

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Sat 24/1

22:30-16:50

2 stops34h 20m

£320

Flights are sorted by cheapest return flights first.

Deals found on 12/12

Showing 1-10 of 12 results
1
2

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 Ontario to Northern Ireland?

Currently, March is the cheapest month in which you can book a flight from Ontario to Northern Ireland (average of £438). Flying from Ontario to Northern Ireland in June is currently the most expensive (average of £692). 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.

  • What airport do you fly from for flights from Ontario to Northern Ireland?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Northern Ireland.

  • How long is the flight from Ontario to Northern Ireland?

    A quick flight from Ontario to Northern Ireland can take about 25h 19m. British Airways provides one of the quickest options available for as low as £626. There are 5095 mi between Ontario and Northern Ireland.

  • 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 Ontario to Northern Ireland?

    Currently, March is the cheapest month in which you can book a flight from Ontario to Northern Ireland (average of £438). Flying from Ontario to Northern Ireland in June is currently the most expensive (average of £692). 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

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Alternative routes for Ontario to Northern Ireland

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Ontario to Northern Ireland flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to Northern Ireland.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Northern Ireland flexibly with Cheapflights today.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Northern Ireland from Ontario today and book when prices fit your budget.

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