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Cheap flights from Northern Ireland to Ontario from £254

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — YYZ
8 Jul — 15 Jul1
1 adult

Cheap 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 3 July 2025.

Round-trip from

£417

One-way from

£254

Popular in

August

Cheapest in

May

Average price

£645
25/9-28/9
  • 25/9-28/9
  • 2 total stops
  • 28h 40m total
  • Northern Ireland to Ontario
Search Deals
18/9
  • 18/9
  • 1 total stop
  • 21h 30m total
  • Northern Ireland to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Northern Ireland to Ontario

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 3 July 2025.

Thu 25/908:20BFS - YYZ
1 stop10h 50mMultiple Airlines
Sun 28/922:15YYZ - BFS
1 stop17h 50mMultiple Airlines
Deal found 30/6£417
Thu 2/1009:35BHD - YYZ
1 stop15h 40mAmerican Airlines
Mon 6/1022:00YYZ - BHD
1 stop12h 40mAmerican Airlines
Deal found 30/6£483
Thu 18/909:35BHD - YUL
1 stop15h 40mBritish Airways
Mon 22/922:10YUL - BHD
1 stop12h 30mBritish Airways
Deal found 30/6£494
Fri 15/809:30BHD - YYZ
2 stops17h 01mBritish Airways
Sat 23/815:14YYZ - BHD
2 stops13h 56mBritish Airways
Deal found 2/7£496
Thu 27/1111:05BHD - YUL
1 stop13h 00mAmerican Airlines
Mon 1/1220:50YUL - BHD
1 stop12h 20mAmerican Airlines
Deal found 1/7£519
Thu 2/1006:30BHD - YYZ
2 stops15h 58mVirgin Atlantic
Mon 6/1022:10YYZ - BHD
1 stop13h 45mVirgin Atlantic
Deal found 1/7£539
Fri 15/809:30BHD - YYZ
1 stop15h 40mMultiple Airlines
Sat 23/822:00YYZ - BHD
1 stop30h 05mMultiple Airlines
Deal found 2/7£541
Thu 27/1106:30BHD - YYZ
1 stop14h 10mDelta
Mon 1/1218:00YYZ - BHD
1 stop17h 50mDelta
Deal found 1/7£544
Wed 9/717:25BHD - YUL
1 stop28h 30mKLM
Sat 26/721:00YUL - BHD
2 stops14h 55mKLM
Deal found 2/7£575
Thu 27/1106:30BHD - YYZ
2 stops15h 53mKLM
Mon 1/1222:45YYZ - BHD
2 stops13h 05mKLM
Deal found 30/6£665
Sun 27/706:30BHD - YUL
1 stop15h 25mDelta
Fri 8/818:50YUL - BHD
1 stop21h 25mDelta
Deal found 1/7£703
Sun 27/706:30BHD - YUL
1 stop15h 25mMultiple Airlines
Fri 8/821:00YUL - BHD
2 stops14h 55mMultiple Airlines
Deal found 1/7£732

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 3 July 2025.
Use the filters below to find and compare flights from Northern Ireland to Ontario that are best for you.

Fly from

Northern Ireland

Fly to

Ontario

Route

Depart

Return

Price

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Thu 25/9

08:20-14:10

1 stop10h 50m

Toronto Pearson Intl

Sun 28/9

22:15-21:05

1 stop17h 50m

£417

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Thu 2/10

09:35-20:15

1 stop15h 40m

Toronto Pearson Intl

Mon 6/10

22:00-15:40

1 stop12h 40m

£483

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Thu 18/9

09:35-20:15

1 stop15h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 22/9

22:10-15:40

1 stop12h 30m

£494

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Fri 15/8

09:30-21:31

2 stops17h 01m

Toronto Pearson Intl

Sat 23/8

15:14-10:10

2 stops13h 56m

£496

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Thu 27/11

11:05-19:05

1 stop13h 00m

Montreal Pierre Elliott Trudeau Intl

Mon 1/12

20:50-14:10

1 stop12h 20m

£519

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Thu 2/10

06:30-17:28

2 stops15h 58m

Toronto Pearson Intl

Mon 6/10

22:10-16:55

1 stop13h 45m

£539

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Fri 15/8

09:30-20:10

1 stop15h 40m

Toronto Pearson Intl

Sat 23/8

22:00-09:05

1 stop30h 05m

£541

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Thu 27/11

06:30-15:40

1 stop14h 10m

Toronto Pearson Intl

Mon 1/12

18:00-16:50

1 stop17h 50m

£544

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Thu 27/11

06:30-17:23

2 stops15h 53m

Toronto Pearson Intl

Mon 1/12

22:45-16:50

2 stops13h 05m

£665

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Tue 15/7

06:30-18:25

2 stops16h 55m

Montreal Pierre Elliott Trudeau Intl

Thu 31/7

18:50-21:05

1 stop21h 15m

£686

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 20 results
1
2

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

What is the cheapest time of day to fly from NIR to ON?

Find hourly flight availability from Northern Ireland to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Northern Ireland to Region of Ontario as you normally would.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 3 July 2025.
Get a feel of what it's like to fly with Delta, KLM, andFinnair from Northern Ireland to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
8.0
Very Good
7,983 reviews
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Finnair
7.6
Good
1,306 reviews
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,983 reviews
Check prices

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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 are the cheapest airlines to fly from Northern Ireland to Region of Ontario one-way?

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as £485. However, be on the lookout for offers from British Airways and American Airlines, as they are both options that can get you from Northern Ireland to Region of Ontario for a low price.

  • 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.

  • What is the cheapest month to book a flight from Northern Ireland to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Northern Ireland to Region of Ontario (average of £490). Flying from Northern Ireland to Region of Ontario in July is currently the most expensive (average of £708). 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 Northern Ireland to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Northern Ireland to Ontario

Discover the top airline that operate flights from Northern Ireland to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£413Average£612FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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?

Deals for Northern Ireland to Ontario 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 Northern Ireland to Ontario?

Cheapflights simply makes it quick and affordable to book flights from Northern Ireland to Ontario by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to Ontario from Northern Ireland? 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 Northern Ireland to Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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