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Cheap flights from Ontario to Belfast Intl Airport from C$ 497

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 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
15 Oct — 22 Oct1
1 adult
1 adult, Economy

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 15 September 2025.

Round-trip from

C$ 978

One-way from

C$ 497

Popular in

July

Cheapest in

October

Average price

C$ 1,326
15/10-22/10
  • 15/10-22/10
  • 4 total stops
  • 41h 45m total
  • Ontario to Belfast
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30/10
  • 30/10
  • 2 total stops
  • 24h 10m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (C$ 978 potential increase over avg. RT price).
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Cheapest flight prices on average. 18% potential price decrease (C$ 360 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Ontario to Belfast Intl

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 15 September 2025.

Wed 15/1010:10 p.m.YYZ - BFS
2 stops18h 50mMultiple Airlines
Wed 22/108:30 p.m.BFS - YYZ
2 stops22h 55mMultiple Airlines
Deal found 15/9C$ 978
Wed 29/108:15 a.m.YYZ - BFS
3 stops32h 40mMultiple Airlines
Wed 5/116:00 a.m.BFS - YYZ
3 stops37h 45mMultiple Airlines
Deal found 14/9C$ 1,002
Fri 17/1011:55 p.m.YYZ - BFS
2 stops17h 40mMultiple Airlines
Fri 31/108:05 a.m.BFS - YYZ
3 stops33h 00mMultiple Airlines
Deal found 15/9C$ 1,068
Thu 30/102:10 p.m.YYZ - BFS
2 stops27h 55mMultiple Airlines
Wed 5/118:50 p.m.BFS - YYZ
1 stop23h 10mMultiple Airlines
Deal found 13/9C$ 1,252
Thu 30/102:05 p.m.YOW - BFS
3 stops26h 20mMultiple Airlines
Thu 6/117:05 a.m.BFS - YOW
3 stops19h 13mMultiple Airlines
Deal found 15/9C$ 1,281
Tue 23/127:15 p.m.YYZ - BFS
2 stops21h 15mMultiple Airlines
Tue 30/126:00 a.m.BFS - YYZ
2 stops41h 15mMultiple Airlines
Deal found 15/9C$ 1,318
Sat 11/109:30 p.m.YUL - BFS
1 stop16h 35mMultiple Airlines
Sat 18/109:05 p.m.BFS - YUL
2 stops28h 55mMultiple Airlines
Deal found 13/9C$ 1,431
Wed 29/103:45 p.m.YTZ - BFS
3 stops22h 10mMultiple Airlines
Wed 5/116:30 a.m.BFS - YTZ
3 stops20h 45mMultiple Airlines
Deal found 14/9C$ 1,811

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 15 September 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

Wed 15/10

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

2 stops18h 50m

Belfast Intl

Wed 22/10

8:30 p.m.-8:11 a.m.

3 stops40h 41m

C$ 978

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 29/10

8:15 a.m.-8:55 p.m.

3 stops32h 40m

Belfast Intl

Wed 5/11

6:00 a.m.-2:45 p.m.

3 stops37h 45m

C$ 1,002

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Fri 17/10

11:55 p.m.-10:35 p.m.

2 stops17h 40m

Belfast Intl

Fri 31/10

8:05 a.m.-1:05 p.m.

3 stops33h 00m

C$ 1,068

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 30/10

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

2 stops27h 55m

Belfast Intl

Wed 5/11

8:50 p.m.-3:00 p.m.

1 stop23h 10m

C$ 1,252

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Thu 30/10

2:05 p.m.-8:25 p.m.

3 stops26h 20m

Belfast Intl

Thu 6/11

7:05 a.m.-9:18 p.m.

3 stops19h 13m

C$ 1,281

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 23/12

7:15 p.m.-9:30 p.m.

2 stops21h 15m

Belfast Intl

Tue 30/12

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

2 stops41h 15m

C$ 1,318

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Sat 11/10

9:30 p.m.-7:05 p.m.

1 stop16h 35m

Belfast Intl

Sat 18/10

9:05 p.m.-9:00 p.m.

2 stops28h 55m

C$ 1,431

TorontoBelfast

YTZ - BFS

YTZBFS

Toronto Island

Wed 29/10

3:45 p.m.-5:55 p.m.

3 stops22h 10m

Belfast Intl

Wed 5/11

6:30 a.m.-10:15 p.m.

3 stops20h 45m

C$ 1,811

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Fri 26/9

5:05 p.m.-10:20 p.m.

2 stops24h 15m

Belfast Intl

Fri 3/10

6:05 a.m.-9:00 p.m.

2 stops19h 55m

C$ 1,996

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 30/10

7:35 p.m.-11:45 p.m.

2 stops24h 10m

C$ 497

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/9

Showing 1-10 of 13 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 15 September 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.

  • 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 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 825AverageC$ 1,305FlexibilityNo 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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