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Cheap flights from Ontario to Belfast from C$ 365

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BHD
22 Apr — 29 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Belfast
Explore the most affordable flight options available from Ontario to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 March 2026.

Mon 1/610:45 p.m.
YUL
-
BFS
2 stops16h 40m
Multiple Airlines
Tue 9/68:00 a.m.
BFS
-
YUL
2 stops41h 45m
Multiple Airlines
Deal found 18/3C$ 805
Mon 1/610:45 p.m.
YUL
-
BFS
2 stops16h 40m
Multiple Airlines
Sun 7/67:00 a.m.
BFS
-
YUL
2 stops43h 10m
Multiple Airlines
Deal found 18/3C$ 807
Mon 1/610:45 p.m.
YUL
-
BHD
2 stops16h 45m
Multiple Airlines
Sun 7/67:00 a.m.
BHD
-
YUL
2 stops43h 10m
Multiple Airlines
Deal found 18/3C$ 837
Mon 1/610:45 p.m.
YUL
-
BHD
2 stops16h 45m
Multiple Airlines
Tue 9/610:20 a.m.
BHD
-
YUL
2 stops39h 25m
Multiple Airlines
Deal found 18/3C$ 840
Mon 4/57:15 p.m.
YYZ
-
BFS
2 stops23h 05m
Multiple Airlines
Mon 11/56:30 a.m.
BFS
-
YYZ
2 stops14h 20m
Multiple Airlines
Deal found 19/3C$ 840
Mon 4/57:15 p.m.
YYZ
-
BFS
1 stop16h 00m
Multiple Airlines
Fri 15/57:20 p.m.
BFS
-
YYZ
3 stops31h 25m
Multiple Airlines
Deal found 17/3C$ 845
Tue 9/610:15 p.m.
YYZ
-
BFS
1 stop16h 35m
Multiple Airlines
Mon 15/69:55 p.m.
BFS
-
YYZ
2 stops20h 25m
Multiple Airlines
Deal found 17/3C$ 859
Tue 14/47:50 p.m.
YYZ
-
BFS
1 stop12h 05m
Multiple Airlines
Tue 21/44:55 p.m.
BFS
-
YYZ
1 stop25h 00m
Multiple Airlines
Deal found 17/3C$ 889
Sat 23/57:15 p.m.
YYZ
-
BFS
1 stop20h 35m
Multiple Airlines
Sun 31/59:25 p.m.
BFS
-
YYZ
1 stop18h 35m
Multiple Airlines
Deal found 20/3C$ 910
Mon 8/610:10 p.m.
YYZ
-
BFS
2 stops20h 55m
Multiple Airlines
Mon 15/69:55 p.m.
BFS
-
YYZ
2 stops20h 25m
Multiple Airlines
Deal found 17/3C$ 911
Sat 23/57:15 p.m.
YYZ
-
BHD
1 stop14h 20m
Multiple Airlines
Sun 31/53:05 p.m.
BHD
-
YYZ
1 stop24h 55m
Multiple Airlines
Deal found 20/3C$ 916
Tue 21/47:50 p.m.
YYZ
-
BFS
2 stops22h 30m
Multiple Airlines
Fri 24/47:55 p.m.
BFS
-
YYZ
2 stops23h 20m
Multiple Airlines
Deal found 18/3C$ 921

Find flight deals from Ontario to Belfast

Keep the following information in mind while searching for Ontario to Belfast flight deals. Data was last updated 23 March 2026.

Round-trip from

C$ 805

One-way from

C$ 365

Popular in

July

Cheapest in

February

Average price

C$ 1,692
1/6-9/6
  • 1/6-9/6
  • 4 total stops
  • 58h 25m total
  • Ontario to Belfast
Search Deals
5/5
  • 5/5
  • 3 total stops
  • 16h 00m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (C$ 845 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 18% potential price decrease (C$ 374 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Belfast 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 March 2026.
Use the filters below to find and compare flights from Ontario to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

10:45 p.m.-8:25 p.m.

2 stops16h 40m

Belfast Intl

Tue 9/6

8:00 a.m.-8:45 p.m.

2 stops41h 45m

C$ 805

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 4/5

7:15 p.m.-4:15 p.m.

1 stop16h 00m

Belfast Intl

Mon 11/5

9:55 p.m.-1:20 p.m.

2 stops20h 25m

C$ 851

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 14/4

7:50 p.m.-12:55 p.m.

1 stop12h 05m

Belfast Intl

Tue 21/4

4:55 p.m.-12:55 p.m.

1 stop25h 00m

C$ 889

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 23/5

7:15 p.m.-8:50 p.m.

1 stop20h 35m

Belfast Intl

Sun 31/5

9:25 p.m.-11:00 a.m.

1 stop18h 35m

C$ 910

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

10:05 p.m.-2:00 p.m.

1 stop10h 55m

Belfast Intl

Fri 15/5

8:15 p.m.-2:15 p.m.

1 stop23h 00m

C$ 922

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 28/5

11:50 p.m.-9:40 p.m.

1 stop16h 50m

Belfast Intl

Fri 5/6

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

1 stop22h 50m

C$ 923

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 6/4

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

1 stop28h 00m

Belfast Intl

Wed 22/4

9:35 p.m.-4:00 p.m.

1 stop23h 25m

C$ 945

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

10:05 p.m.-5:50 p.m.

1 stop14h 45m

Belfast City

Fri 15/5

2:20 p.m.-2:15 p.m.

1 stop28h 55m

C$ 951

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 8/6

10:15 p.m.-11:05 p.m.

1 stop19h 50m

Belfast Intl

Sat 13/6

7:15 a.m.-3:50 p.m.

2 stops13h 35m

C$ 955

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 23/5

11:50 p.m.-11:25 p.m.

1 stop18h 35m

Belfast Intl

Fri 29/5

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

1 stop22h 50m

C$ 959

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/3

Showing 1-10 of 55 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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
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. 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?

    The most popular flight routes from Region of Ontario to Belfast are Toronto Pearson Intl - Belfast Intl, Toronto Pearson Intl - Belfast City and Montreal Pierre Elliott Trudeau Intl - Belfast City.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Belfast 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

Discover the top airline that operate flights from Ontario to Belfast. 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 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 815AverageC$ 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?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Belfast. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to Belfast from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ontario to Belfast with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Belfast flexibly with Cheapflights today.

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

Yes! Start tracking prices for Ontario to Belfast flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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