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Cheap flights from Ontario to Belfast Intl Airport from C$ 490

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 24/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
23 Mar — 30 Mar1
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 21 February 2026.

Mon 30/310:35 p.m.
YYZ
-
BFS
1 stop12h 40m
Multiple Airlines
Mon 13/49:15 a.m.
BFS
-
YYZ
2 stops34h 00m
Multiple Airlines
Deal found 19/2C$ 704
Sun 24/510:15 p.m.
YYZ
-
BFS
1 stop28h 50m
Multiple Airlines
Sun 14/67:10 a.m.
BFS
-
YYZ
2 stops35h 10m
Multiple Airlines
Deal found 19/2C$ 764
Mon 20/410:35 p.m.
YYZ
-
BFS
1 stop11h 55m
Multiple Airlines
Mon 27/48:15 a.m.
BFS
-
YYZ
1 stop12h 45m
Multiple Airlines
Deal found 17/2C$ 803
Mon 27/410:35 p.m.
YYZ
-
BFS
1 stop16h 50m
Multiple Airlines
Mon 4/56:10 a.m.
BFS
-
YYZ
1 stop14h 30m
Multiple Airlines
Deal found 17/2C$ 853
Sun 5/410:35 p.m.
YYZ
-
BFS
1 stop28h 05m
Multiple Airlines
Sun 12/49:05 p.m.
BFS
-
YYZ
1 stop23h 55m
Multiple Airlines
Deal found 18/2C$ 912
Mon 9/39:10 p.m.
YUL
-
BFS
1 stop20h 30m
Multiple Airlines
Fri 13/35:30 p.m.
BFS
-
YUL
1 stop23h 40m
Multiple Airlines
Deal found 20/2C$ 914
Fri 1/58:25 p.m.
YYZ
-
BFS
1 stop18h 25m
Multiple Airlines
Sun 31/57:10 a.m.
BFS
-
YYZ
2 stops37h 40m
Multiple Airlines
Deal found 20/2C$ 920
Sat 7/39:35 p.m.
YYZ
-
BFS
1 stop12h 50m
Multiple Airlines
Sat 14/38:10 a.m.
BFS
-
YYZ
1 stop11h 50m
Multiple Airlines
Deal found 19/2C$ 938
Fri 24/49:15 a.m.
YOW
-
BFS
3 stops19h 40m
Multiple Airlines
Mon 27/410:35 a.m.
BFS
-
YOW
3 stops36h 00m
Multiple Airlines
Deal found 18/2C$ 980
Sun 5/47:20 p.m.
YUL
-
BFS
2 stops14h 50m
Multiple Airlines
Sun 12/49:05 p.m.
BFS
-
YUL
2 stops32h 30m
Multiple Airlines
Deal found 19/2C$ 1,050
Fri 1/511:40 p.m.
YUL
-
BFS
2 stops18h 40m
Multiple Airlines
Sun 31/57:00 a.m.
BFS
-
YUL
3 stops43h 10m
Multiple Airlines
Deal found 20/2C$ 1,058
Mon 25/511:00 p.m.
YUL
-
BFS
1 stop30h 40m
Multiple Airlines
Sat 30/510:10 a.m.
BFS
-
YUL
1 stop15h 50m
Multiple Airlines
Deal found 19/2C$ 1,174

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 21 February 2026.

Round-trip from

C$ 704

One-way from

C$ 490

Popular in

July

Cheapest in

October

Average price

C$ 990
30/3-13/4
  • 30/3-13/4
  • 3 total stops
  • 46h 40m total
  • Ontario to Belfast
Search Deals
24/3
  • 24/3
  • 2 total stops
  • 18h 05m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (C$ 929 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 February 2026
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 21 February 2026.
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

Mon 30/3

10:35 p.m.-4:15 p.m.

1 stop12h 40m

Belfast Intl

Mon 13/4

9:15 a.m.-2:15 p.m.

2 stops34h 00m

C$ 704

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 24/5

10:15 p.m.-8:05 a.m.

1 stop28h 50m

Belfast Intl

Sun 14/6

7:10 a.m.-1:20 p.m.

2 stops35h 10m

C$ 764

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 20/4

10:35 p.m.-3:30 p.m.

1 stop11h 55m

Belfast Intl

Mon 27/4

8:15 a.m.-4:00 p.m.

1 stop12h 45m

C$ 803

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 27/4

10:35 p.m.-8:25 p.m.

1 stop16h 50m

Belfast Intl

Mon 4/5

6:10 a.m.-3:40 p.m.

1 stop14h 30m

C$ 853

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 5/4

10:35 p.m.-7:40 a.m.

1 stop28h 05m

Belfast Intl

Sun 12/4

9:05 p.m.-4:00 p.m.

1 stop23h 55m

C$ 912

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

9:10 p.m.-9:40 p.m.

1 stop20h 30m

Belfast Intl

Fri 13/3

5:30 p.m.-1:10 p.m.

1 stop23h 40m

C$ 914

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Fri 1/5

8:25 p.m.-7:50 p.m.

1 stop18h 25m

Belfast Intl

Sun 31/5

7:10 a.m.-3:50 p.m.

2 stops37h 40m

C$ 920

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 7/3

9:35 p.m.-3:25 p.m.

1 stop12h 50m

Belfast Intl

Sat 14/3

8:10 a.m.-4:00 p.m.

1 stop11h 50m

C$ 938

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 14/4

8:45 p.m.-8:55 p.m.

2 stops19h 10m

Belfast Intl

Wed 22/4

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

2 stops20h 55m

C$ 942

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Fri 24/4

9:15 a.m.-9:55 a.m.

3 stops19h 40m

Belfast Intl

Mon 27/4

10:35 a.m.-5:35 p.m.

3 stops36h 00m

C$ 980

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

Showing 1-10 of 36 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

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 Ottawa - 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 21 February 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 817AverageC$ 1,215FlexibilityNo 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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