Cheap flights from Northern Ireland to Ontario from £271
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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
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 30 April 2025.
Find flight deals from Northern Ireland to Ontario
Cheapest flights from Northern Ireland to OntarioExplore 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 30 April 2025.
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 30 April 2025.
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 30 April 2025.
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
BelfastToronto
BFS - YYZ
BFSYYZ
Belfast Intl
Mon 19/5
22:00-11:00
1 stop18h 00m
Toronto Pearson Intl
Mon 2/6
19:15-11:55
1 stop11h 40m
BelfastToronto
BHD - YYZ
BHDYYZ
Belfast City
Fri 6/6
06:35-21:30
2 stops19h 55m
Toronto Pearson Intl
Tue 17/6
22:15-17:30
1 stop14h 15m
BelfastMontreal
BHD - YUL
BHDYUL
Belfast City
Tue 20/5
17:25-16:55
1 stop28h 30m
Montreal Pierre Elliott Trudeau Intl
Tue 27/5
18:50-21:05
1 stop21h 15m
BelfastToronto
BHD - YYZ
BHDYYZ
Belfast City
Wed 11/6
07:05-15:40
1 stop13h 35m
Toronto Pearson Intl
Wed 18/6
22:45-15:05
1 stop11h 20m
BelfastToronto
BHD - YYZ
BHDYYZ
Belfast City
Fri 6/6
17:25-11:20
2 stops22h 55m
Toronto Pearson Intl
Tue 17/6
18:14-16:55
2 stops17h 41m
BelfastToronto
BFS - YTZ
BFSYTZ
Belfast Intl
Thu 7/8
16:25-16:46
2 stops29h 21m
Toronto Island
Thu 21/8
15:25-23:30
2 stops27h 05m
BelfastToronto
BHD - YYZ
BHDYYZ
Belfast City
Wed 11/6
06:30-17:24
2 stops15h 54m
Toronto Pearson Intl
Wed 18/6
22:10-21:15
1 stop18h 05m
BelfastMontreal
BHD - YUL
BHDYUL
Belfast City
Tue 20/5
09:35-22:45
2 stops18h 10m
Montreal Pierre Elliott Trudeau Intl
Tue 27/5
16:00-10:35
2 stops13h 35m
BelfastToronto
BHD - YYZ
BHDYYZ
Belfast City
Mon 19/5
06:30-17:25
2 stops15h 55m
Toronto Pearson Intl
Mon 2/6
15:50-16:55
2 stops20h 05m
BelfastToronto
BHD - YTZ
BHDYTZ
Belfast City
Thu 7/8
18:50-16:46
2 stops26h 56m
Toronto Island
Thu 21/8
17:25-21:10
2 stops22h 45m
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.
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 30 April 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.
Rainfall in Ontario by month
Plan your trip to Ontario by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 inches per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.
Temperature in Ontario by month
Plan your trip to Ontario by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).
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 30 April 2025.
Read through reviews of airlines operating flights from Northern Ireland to Ontario, such as Delta, KLM and Virgin Atlantic. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Overall
Boarding
Comfort
Crew
Food
Reviews
Colin,Sept 2024
LHR - BOS
Entertainment
Overall
Boarding
Comfort
Crew
Food
Reviews
Colin,Sept 2024
LHR - BOS
Entertainment
Overall
Boarding
Comfort
Crew
Food
Reviews
Colin,Sept 2024
LHR - BOS
Entertainment
Overall
Boarding
Comfort
Crew
Food
Reviews
Colin,Sept 2024
LHR - BOS
Entertainment
Overall
Boarding
Comfort
Crew
Food
Reviews
Colin,Sept 2024
LHR - BOS
Entertainment
Overall
Boarding
Comfort
Crew
Food
Reviews
Colin,Sept 2024
LHR - BOS
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.
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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.
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 30 April 2025.
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!