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Cheap flights from Ontario to Belfast Intl Airport from C$ 441

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Belfast Intl
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 23 December 2025.

Mon 22/1210:45 p.m.YYZ - BFS
2 stops17h 25mMultiple Airlines
Wed 24/128:35 a.m.BFS - YYZ
2 stops35h 10mMultiple Airlines
Deal found 21/12C$ 2,266

Find 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 23 December 2025.

Round-trip from

C$ 767

One-way from

C$ 441

Popular in

July

Cheapest in

October

Average price

C$ 1,769
5/2-12/2
  • 5/2-12/2
  • 2 total stops
  • 33h 15m total
  • Ontario to Belfast
Search Deals
4/2
  • 4/2
  • 3 total stops
  • 47h 05m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (C$ 857 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (C$ 345 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Belfast Intl 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 23 December 2025.
Use the filters below to find and compare flights from Ontario to Belfast Intl Airport that are best for you.

Fly from

Ontario

Fly to

Belfast Intl

Route

Depart

Return

Price

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 5/2

9:35 p.m.-10:20 p.m.

1 stop19h 45m

Belfast Intl

Thu 12/2

6:30 a.m.-3:00 p.m.

1 stop13h 30m

C$ 767

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 3/2

9:35 p.m.-5:55 p.m.

1 stop15h 20m

Belfast Intl

Tue 10/2

8:55 p.m.-3:00 p.m.

1 stop23h 05m

C$ 799

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Mon 12/1

6:55 p.m.-8:10 p.m.

2 stops20h 15m

Belfast Intl

Tue 20/1

8:55 p.m.-6:28 p.m.

2 stops26h 33m

C$ 907

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 19/1

7:40 p.m.-7:05 p.m.

2 stops18h 25m

Belfast Intl

Mon 26/1

8:30 a.m.-6:15 p.m.

2 stops14h 45m

C$ 953

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 2/4

10:35 p.m.-9:00 a.m.

1 stop29h 25m

Belfast Intl

Sun 12/4

8:50 p.m.-4:00 p.m.

1 stop24h 10m

C$ 987

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 23/3

10:00 p.m.-8:10 p.m.

2 stops18h 10m

Belfast Intl

Mon 30/3

6:50 p.m.-2:15 p.m.

2 stops24h 25m

C$ 1,005

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Fri 13/3

10:40 p.m.-12:55 a.m.

2 stops22h 15m

Belfast Intl

Mon 16/3

10:30 a.m.-12:38 a.m.

3 stops42h 08m

C$ 1,016

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 1/4

5:15 p.m.-9:00 a.m.

2 stops58h 45m

Belfast Intl

Sun 12/4

6:55 a.m.-12:50 p.m.

1 stop10h 55m

C$ 1,059

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Mon 19/1

9:45 p.m.-8:20 a.m.

2 stops29h 35m

Belfast Intl

Mon 2/2

2:40 p.m.-12:40 p.m.

1 stop27h 00m

C$ 1,081

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Fri 3/4

10:00 p.m.-9:00 p.m.

2 stops18h 00m

Belfast Intl

Sun 12/4

6:55 a.m.-12:50 p.m.

1 stop10h 55m

C$ 1,114

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/12

Showing 1-10 of 17 results
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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.
Estimated round-trip 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 Ontario to Belfast Intl Airport
No data available for this route at this time. Please check back soon.

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.

  • What are the most popular routes from Region of Ontario to Belfast Intl Airport?

    When deciding which route to take from Region of Ontario to Belfast Intl Airport consider Toronto Pearson Intl - Belfast Intl, Montreal Pierre Elliott Trudeau Intl - Belfast Intl or Toronto Island - Belfast Intl as they are the most popular.

  • Can I find deals for flights from Ontario to Belfast Intl that include hotel bookings?

    Yes. In addition to deals on Ontario to Belfast Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Belfast Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Belfast Intl.

  • Can I find deals for business class flights from Ontario to Belfast Intl?

    Yes. Cheapflights offers flight deals from Ontario to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 23 December 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 822AverageC$ 1,239FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ontario to Belfast Intl?

When you search for this flight from Ontario to Belfast Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Belfast Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Belfast Intl 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 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.

Can Cheapflights notify me if prices for flights from Ontario to Belfast Intl become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to Belfast Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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