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Cheap flights from Northern Ireland to Ontario from £694

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/11. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ONT
12 Jun — 19 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Ontario
Explore the most affordable flight options available from Northern Ireland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 May 2026.

Sat 14/1106:35
BHD
-
ONT
2 stops23h 48m
British Airways
Tue 17/1114:59
ONT
-
BHD
2 stops17h 46m
British Airways
Deal found 12/5£694
Mon 9/1106:35
BHD
-
ONT
2 stops25h 22m
British Airways
Thu 12/1116:47
ONT
-
BHD
2 stops15h 53m
British Airways
Deal found 8/5£700
Thu 21/512:45
BHD
-
ONT
2 stops19h 14m
American Airlines
Mon 25/512:40
ONT
-
BHD
2 stops20h 50m
American Airlines
Deal found 10/5£702
Sun 6/913:10
BHD
-
ONT
2 stops16h 41m
British Airways
Wed 23/912:35
ONT
-
BHD
2 stops17h 00m
British Airways
Deal found 9/5£743
Sat 6/607:05
BHD
-
ONT
2 stops24h 54m
Multiple Airlines
Sat 13/613:11
ONT
-
BHD
2 stops22h 09m
Multiple Airlines
Deal found 9/5£802
Sat 6/609:35
BHD
-
ONT
2 stops22h 24m
British Airways
Sat 13/613:11
ONT
-
BHD
2 stops21h 04m
British Airways
Deal found 9/5£816

Find flight deals from Northern Ireland to Ontario

Keep the following information in mind while searching for Northern Ireland to Ontario flight deals. Data was last updated 13 May 2026.

Round-trip from

£743
British Airways
  • British Airways
  • 6/9-23/9
  • 4 total stops
  • 33h 41m total
  • Northern Ireland to Ontario
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Ontario 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 13 May 2026.
Use the filters below to find and compare flights from Northern Ireland to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Mon 9/11

06:35-23:57

2 stops25h 22m

Ontario

Thu 12/11

16:47-16:40

2 stops15h 53m

£700
Fastest return journey

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Sun 6/9

13:10-21:51

2 stops16h 41m

Ontario

Wed 23/9

12:35-13:35

2 stops17h 00m

£743

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Sat 6/6

07:05-23:59

2 stops24h 54m

Ontario

Sat 13/6

13:11-19:20

2 stops22h 09m

£802

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Sat 6/6

09:35-23:59

2 stops22h 24m

Ontario

Sat 13/6

13:11-18:15

2 stops21h 04m

£816

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Tue 14/7

06:30-19:59

2 stops21h 29m

Ontario

Tue 21/7

13:10-15:20

2 stops18h 10m

£1,099

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Mon 25/5

09:50-23:34

2 stops21h 44m

Ontario

Tue 2/6

16:57-16:55

2 stops15h 58m

£1,250

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Fri 3/7

09:35-19:59

2 stops18h 24m

Ontario

Fri 24/7

12:35-15:30

2 stops18h 55m

£1,524
Cheapest one-way
Fastest single journey

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Mon 29/6

09:40-19:56

2 stops18h 16m

£1,021

Flights are sorted by cheapest return flights first.

Deals found on 10/5

Sorted by cheapest first

Best time to book a flight from Northern Ireland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Northern Ireland 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 Northern Ireland to Ontario
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Ontario. 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 into for flights to Ontario from Northern Ireland?

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

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

    A quick flight from Northern Ireland to Ontario can take about 25h 22m. British Airways provides one of the quickest options available for as low as £700. Airlines will cover a distance of 5095 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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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 Northern Ireland to Ontario?

When you search for this flight from Northern Ireland to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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 Northern Ireland to Ontario.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Northern Ireland to Ontario, users can toggle the no change fees filter when performing a flight search.

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

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

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