Cheap flights from Ontario to Northern Ireland from C$ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap 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 2 July 2025.
Find flight deals from Ontario to Northern Ireland
Cheapest flights from Ontario to Northern IrelandExplore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2025.
Explore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2025.
Cheapflights Fare Finder
Customize 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 629,999 searches. Data last updated 2 July 2025.
Use the filters below to find and compare flights from Ontario to Northern Ireland that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
TorontoBelfast
YYZ - BFS
YYZBFS
Toronto Pearson Intl
Mon 25/8
10:15 p.m.-4:10 p.m.
1 stop12h 55m
Belfast Intl
Sun 7/9
10:10 p.m.-12:45 p.m.
1 stop19h 35m
TorontoBelfast
YYZ - BHD
YYZBHD
Toronto Pearson Intl
Sun 28/9
10:15 p.m.-5:40 p.m.
1 stop14h 25m
Belfast City
Sat 4/10
5:50 p.m.-2:10 p.m.
1 stop25h 20m
TorontoCampbeltown
YYZ - CAL
YYZCAL
Toronto Pearson Intl
Thu 14/8
7:15 p.m.-5:15 p.m.
1 stop17h 00m
Campbeltown Machrihanish
Thu 21/8
9:05 a.m.-11:00 a.m.
1 stop30h 55m
MontrealBelfast
YUL - BFS
YULBFS
Montreal Pierre Elliott Trudeau Intl
Thu 14/8
9:40 p.m.-4:15 p.m.
1 stop13h 35m
Belfast Intl
Thu 21/8
6:00 a.m.-6:46 a.m.
3 stops29h 46m
TorontoBelfast
YYZ - BHD
YYZBHD
Toronto Pearson Intl
Sat 13/9
10:00 p.m.-5:15 p.m.
1 stop14h 15m
Belfast City
Sun 21/9
6:05 p.m.-4:00 p.m.
1 stop26h 55m
TorontoBelfast
YYZ - BHD
YYZBHD
Toronto Pearson Intl
Tue 5/8
10:15 p.m.-5:30 p.m.
1 stop14h 15m
Belfast City
Mon 18/8
6:40 a.m.-5:19 p.m.
2 stops15h 39m
TorontoBelfast
YYZ - BHD
YYZBHD
Toronto Pearson Intl
Sat 13/9
3:11 p.m.-10:10 a.m.
2 stops13h 59m
Belfast City
Sun 21/9
6:50 a.m.-9:30 p.m.
2 stops19h 40m
OttawaBelfast
YOW - BHD
YOWBHD
Ottawa
Mon 1/9
5:05 p.m.-8:25 p.m.
2 stops22h 20m
Belfast City
Tue 30/9
7:05 a.m.-8:35 p.m.
2 stops18h 30m
TorontoBelfast
YYZ - BHD
YYZBHD
Toronto Pearson Intl
Thu 14/8
5:20 p.m.-2:30 p.m.
2 stops16h 10m
Belfast City
Tue 26/8
6:50 p.m.-3:50 p.m.
2 stops26h 00m
MontrealBelfast
YUL - BHD
YULBHD
Montreal Pierre Elliott Trudeau Intl
Fri 1/8
10:00 p.m.-8:45 p.m.
1 stop17h 45m
Belfast City
Sun 10/8
8:05 p.m.-8:15 p.m.
1 stop29h 10m
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.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Northern Ireland
What is the cheapest time of day to fly from ON to NIR?
Find hourly flight availability from Ontario to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 July 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Northern Ireland as you normally would.
How much does it cost to fly round-trip from Region of Ontario to Northern Ireland?
Reviews of airlines servicing Northern Ireland
Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated 2 July 2025.
Check out reviews from past customers who have flown with Delta,KLM, andAmerican Airlines from Ontario to Northern Ireland to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Comfort
Entertainment
Overall
Boarding
Food
Reviews
Aaron,Oct 2024
LAX - LHR
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.
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Alternative routes for Ontario to Northern Ireland
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Ontario to Northern Ireland
Discover the top airline that operate flights from Ontario to Northern Ireland. 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 629,999 searches. Data last updated 2 July 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers 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?
Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Northern Ireland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Ontario to Northern Ireland with no change fees?
Yes! Cheapflights helps users easily find flights from Ontario to Northern Ireland with no change fees.
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.