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Cheap flights from Ontario to Belfast Intl Airport from C$ 422

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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 30 October 2025.

Tue 2/129:35 p.m.YYZ - BFS
1 stop15h 20mMultiple Airlines
Mon 8/128:55 p.m.BFS - YYZ
1 stop23h 05mMultiple Airlines
Deal found 29/10C$ 906
Sun 23/1110:45 p.m.YYZ - BFS
2 stops18h 10mMultiple Airlines
Mon 8/128:40 a.m.BFS - YYZ
2 stops27h 30mMultiple Airlines
Deal found 29/10C$ 938
Wed 19/119:35 p.m.YYZ - BFS
1 stop15h 25mMultiple Airlines
Sat 22/118:10 a.m.BFS - YYZ
1 stop11h 50mMultiple Airlines
Deal found 30/10C$ 1,003
Thu 27/116:55 p.m.YOW - BFS
2 stops20h 25mMultiple Airlines
Thu 4/126:30 a.m.BFS - YOW
2 stops16h 55mMultiple Airlines
Deal found 30/10C$ 1,024
Sat 8/119:35 p.m.YYZ - BFS
1 stop12h 50mMultiple Airlines
Sat 15/118:10 a.m.BFS - YYZ
1 stop11h 50mMultiple Airlines
Deal found 30/10C$ 1,314
Sun 21/126:05 p.m.YOW - BFS
2 stops15h 05mMultiple Airlines
Sun 4/16:30 a.m.BFS - YOW
2 stops20h 48mMultiple Airlines
Deal found 30/10C$ 3,350

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 30 October 2025.

Round-trip from

C$ 906

One-way from

C$ 422

Popular in

July

Cheapest in

October

Average price

C$ 990
2/12-8/12
  • 2/12-8/12
  • 2 total stops
  • 38h 25m total
  • Ontario to Belfast
Search Deals
12/1
  • 12/1
  • 3 total stops
  • 36h 45m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (C$ 997 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 18% potential price decrease (C$ 367 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 30 October 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

Sat 24/1

7:15 p.m.-10:10 a.m.

1 stop9h 55m

Belfast Intl

Sat 31/1

9:05 p.m.-11:40 a.m.

1 stop19h 35m

C$ 799

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 2/12

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

1 stop15h 20m

Belfast Intl

Mon 8/12

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

1 stop23h 05m

C$ 906

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 23/11

10:45 p.m.-9:55 p.m.

2 stops18h 10m

Belfast Intl

Mon 8/12

8:40 a.m.-7:10 a.m.

2 stops27h 30m

C$ 938

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 19/11

9:35 p.m.-6:00 p.m.

1 stop15h 25m

Belfast Intl

Sat 22/11

8:10 a.m.-3:00 p.m.

1 stop11h 50m

C$ 1,003

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Thu 27/11

6:55 p.m.-8:20 p.m.

2 stops20h 25m

Belfast Intl

Thu 4/12

6:30 a.m.-6:25 p.m.

2 stops16h 55m

C$ 1,024

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Sun 21/12

6:05 p.m.-2:10 p.m.

2 stops15h 05m

Belfast Intl

Sun 4/1

6:30 a.m.-10:18 p.m.

2 stops20h 48m

C$ 3,350

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Mon 12/1

4:20 p.m.-10:05 a.m.

3 stops36h 45m

C$ 422

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 13/12

3:25 p.m.-8:00 a.m.

2 stops35h 35m

C$ 518

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 31/3

5:35 p.m.-9:20 p.m.

2 stops22h 45m

C$ 518

TorontoBelfast

YTZ - BFS

YTZBFS

Toronto Island

Sat 13/12

6:15 p.m.-8:00 a.m.

3 stops32h 45m

C$ 605

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/10

Showing 1-10 of 11 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

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 30 October 2025.

One of the essential ways to save on airfare from Region of Ontario to Belfast Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 37% on airfare.

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.

  • 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, Toronto Island - Belfast Intl or Montreal Pierre Elliott Trudeau Intl - 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 30 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 834AverageC$ 1,296FlexibilityNo 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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