Cheap flights from Ontario to Belfast Intl Airport from C$ 321
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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Ontario to Belfast Intl
Keep the following information in mind while searching for Ontario to Belfast Intl flight deals. Data was last updated 31 July 2025.
Find flight deals from Ontario to Belfast Intl
Cheapest flights from Ontario to Belfast IntlExplore the most affordable flight options available from Ontario to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.
Explore the most affordable flight options available from Ontario to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.
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Use the filters below to find and compare flights from Ontario to Belfast Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
TorontoBelfast
YYZ - BFS
YYZBFS
Toronto Pearson Intl
Sun 7/9
10:15 p.m.-3:55 p.m.
1 stop12h 40m
Belfast Intl
Tue 16/9
7:55 p.m.-2:40 p.m.
2 stops23h 45m
MontrealBelfast
YUL - BFS
YULBFS
Montreal Pierre Elliott Trudeau Intl
Thu 23/10
10:05 p.m.-4:25 p.m.
1 stop13h 20m
Belfast Intl
Sat 1/11
9:40 a.m.-9:00 p.m.
1 stop15h 20m
OttawaBelfast
YOW - BFS
YOWBFS
Ottawa
Sat 23/8
5:55 a.m.-11:00 a.m.
3 stops24h 05m
Belfast Intl
Sun 14/9
4:20 p.m.-12:22 a.m.
3 stops37h 02m
TorontoBelfast
YYZ - BFS
YYZBFS
Toronto Pearson Intl
Sun 14/9
10:15 p.m.-7:50 a.m.
1 stop28h 35m
MontrealBelfast
YUL - BFS
YULBFS
Montreal Pierre Elliott Trudeau Intl
Wed 1/10
6:00 p.m.-10:00 p.m.
2 stops23h 00m
OttawaBelfast
YOW - BFS
YOWBFS
Ottawa
Sun 14/9
5:55 a.m.-9:05 p.m.
3 stops34h 10m
TorontoBelfast
YTZ - BFS
YTZBFS
Toronto Island
Sat 13/9
8:50 a.m.-10:10 a.m.
3 stops20h 20m
Best time to book a flight from Ontario to Belfast Intl
Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Ontario with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Belfast Intl Airport
What is the cheapest time of day to fly from ON to BFS?
Find hourly flight availability from Ontario to Belfast Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 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 Belfast Intl Airport as you normally would.
How much does it cost to fly round-trip from Region of Ontario to Belfast Intl Airport?
Related info for your journey
Find useful and relevant information for your journey from Ontario to Belfast Intl. 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 Belfast Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Ontario to Belfast Intl
Discover the top airline that operate flights from Ontario to Belfast Intl. 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 31 July 2025.
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Why should you use Cheapflights to find cheap flight tickets from Ontario to Belfast Intl?
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Can Cheapflights find flights from Ontario to Belfast Intl with no change fees?
Certainly. Search results for flights to Belfast Intl from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
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