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Cheap flights from Northern Ireland to Ontario from £273
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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — YYZ
16 Nov — 23 Nov1
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 17 October 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 17 October 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 17 October 2025.
Thu 4/1206:00BFS - YYZ
2 stops41h 15mMultiple Airlines
Mon 8/1219:40YYZ - BFS
2 stops20h 50mMultiple Airlines
Deal found 15/10£389
Thu 4/1206:35BHD - YYZ
2 stops16h 40mMultiple Airlines
Mon 8/1219:40YYZ - BHD
2 stops19h 35mMultiple Airlines
Deal found 15/10£456
Mon 1/1220:55BFS - YYZ
1 stop23h 05mMultiple Airlines
Mon 8/1221:35YYZ - BFS
1 stop29h 20mMultiple Airlines
Deal found 17/10£459
Mon 1/1208:40BFS - YTZ
2 stops16h 15mMultiple Airlines
Mon 8/1218:30YTZ - BFS
2 stops22h 10mMultiple Airlines
Deal found 17/10£497
Sun 16/1109:10BHD - YYZ
2 stops38h 05mMultiple Airlines
Sun 23/1119:40YYZ - BHD
2 stops18h 00mMultiple Airlines
Deal found 16/10£526
Thu 4/1209:05BHD - YYZ
1 stop10h 45mAmerican Airlines
Mon 8/1222:05YYZ - BHD
1 stop11h 10mAmerican Airlines
Deal found 15/10£541
Sat 29/1108:10BFS - YYZ
1 stop11h 50mMultiple Airlines
Sat 6/1221:35YYZ - BFS
1 stop12h 50mMultiple Airlines
Deal found 15/10£544
Thu 27/1109:05BHD - YUL
1 stop14h 40mAmerican Airlines
Mon 1/1220:40YUL - BHD
1 stop12h 35mAmerican Airlines
Deal found 14/10£546
Thu 27/1120:00BHD - YUL
1 stop27h 45mBritish Airways
Mon 1/1220:40YUL - BHD
1 stop12h 35mBritish Airways
Deal found 16/10£559
Thu 20/1115:05BHD - YUL
2 stops36h 35mAmerican Airlines
Mon 24/1120:40YUL - BHD
1 stop12h 35mAmerican Airlines
Deal found 14/10£567
Sun 16/1110:40BHD - YYZ
2 stops16h 18mBritish Airways
Sun 23/1118:05YYZ - BHD
1 stop14h 10mBritish Airways
Deal found 16/10£578
Thu 27/1106:35BHD - YYZ
2 stops15h 40mAmerican Airlines
Mon 1/1213:14YYZ - BHD
2 stops16h 26mAmerican Airlines
Deal found 14/10£586
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 17 October 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 4/12
06:00-18:15
2 stops41h 15m
Toronto Pearson Intl
Mon 8/12
19:40-21:30
2 stops20h 50m
£389
BelfastToronto
BHD - YYZ
BHDYYZ
Belfast City
Thu 4/12
06:35-18:15
2 stops16h 40m
Toronto Pearson Intl
Mon 8/12
19:40-20:15
2 stops19h 35m
£456
BelfastToronto
BFS - YYZ
BFSYYZ
Belfast Intl
Mon 1/12
20:55-15:00
1 stop23h 05m
Toronto Pearson Intl
Mon 8/12
21:35-07:55
1 stop29h 20m
£459
BelfastToronto
BFS - YTZ
BFSYTZ
Belfast Intl
Mon 1/12
08:40-19:55
2 stops16h 15m
Toronto Island
Mon 8/12
18:30-21:40
2 stops22h 10m
£497
BelfastToronto
BHD - YYZ
BHDYYZ
Belfast City
Sun 16/11
09:10-18:15
2 stops38h 05m
Toronto Pearson Intl
Sun 23/11
19:40-18:40
2 stops18h 00m
£526
BelfastToronto
BHD - YYZ
BHDYYZ
Belfast City
Thu 4/12
09:05-14:50
1 stop10h 45m
Toronto Pearson Intl
Mon 8/12
22:05-14:15
1 stop11h 10m
£541
BelfastToronto
BFS - YYZ
BFSYYZ
Belfast Intl
Sat 29/11
08:10-15:00
1 stop11h 50m
Toronto Pearson Intl
Sat 6/12
21:35-15:25
1 stop12h 50m
£544
BelfastMontreal
BHD - YUL
BHDYUL
Belfast City
Thu 27/11
20:00-18:45
1 stop27h 45m
Montreal Pierre Elliott Trudeau Intl
Mon 1/12
20:40-14:15
1 stop12h 35m
£559
BelfastMontreal
BHD - YUL
BHDYUL
Belfast City
Thu 27/11
09:05-18:45
1 stop14h 40m
Montreal Pierre Elliott Trudeau Intl
Mon 1/12
15:49-14:15
2 stops17h 26m
£567
BelfastMontreal
BHD - YUL
BHDYUL
Belfast City
Thu 20/11
15:05-22:40
2 stops36h 35m
Montreal Pierre Elliott Trudeau Intl
Mon 24/11
20:40-14:15
1 stop12h 35m
£567
Showing 1-10 of 21 results
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 17 October 2025.
It’s typically best to fly out from Northern Ireland to Region of Ontario in the evening. Doing so could potentially save you 30% on the flight price compared to flying in the morning, which is usually more expensive.
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 17 October 2025.
Get a feel of what it's like to fly with British Airways 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.
Comfort
6.7
Crew
7.6
Overall
6.7
Boarding
6.9
Entertainment
6.4
Food
6.3
Reviews
1 / 20
6.0
GoodRoxanne,Sept 2025
LHR - IAD
Comfort
6.7
Crew
7.6
Overall
6.7
Boarding
6.9
Entertainment
6.4
Food
6.3
Reviews
1 / 20
6.0
GoodRoxanne,Sept 2025
LHR - IAD
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.
Browse thousands of different options on Cheapflights for your next trip
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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 17 October 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!