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Cheap flights from Belfast Intl Airport to Ontario from £267

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — YYZ
4 Sep — 11 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to Ontario
Explore the most affordable flight options available from Belfast Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 August 2026.

Mon 14/915:35 -
1 stop25h 00m
Mon 28/918:50 -
1 stop19h 15m
Deal found 1/8£373
Mon 7/921:35 -
1 stop18h 25m
Mon 14/919:15 -
1 stop12h 15m
Deal found 2/8£429
Thu 17/906:10 -
2 stops20h 55m
Mon 21/920:45 -
2 stops18h 40m
Deal found 3/8£431
Thu 17/906:10 -
2 stops20h 55m
Sat 24/1023:25 -
2 stops14h 25m
Deal found 3/8£438
Thu 17/921:10 -
2 stops24h 20m
Tue 22/910:30 -
2 stops22h 30m
Deal found 5/8£449
Fri 4/906:05 -
2 stops15h 25m
Sun 13/916:55 -
2 stops22h 20m
Deal found 3/8£451
Thu 17/906:10 -
2 stops20h 55m
Tue 22/920:45 -
2 stops19h 20m
Deal found 5/8£455
Tue 1/906:15 -
2 stops20h 46m
Tue 8/911:55 -
2 stops28h 10m
Deal found 2/8£480
Mon 17/820:35 -
2 stops22h 46m
Sun 23/816:30 -
2 stops20h 55m
Deal found 2/8£515
Mon 7/920:55 -
2 stops24h 35m
Mon 14/916:55 -
2 stops21h 10m
Deal found 4/8£562

Find flight deals from Belfast Intl to Ontario

Keep the following information in mind while searching for Belfast Intl to Ontario flight deals. Data was last updated 5 August 2026.

Round-trip from

£373

One-way from

£267
14/9-28/9
  • 14/9-28/9
  • 2 total stops
  • 44h 15m total
  • Belfast to Ontario
Search Deals
7/9
  • 7/9
  • 2 total stops
  • 25h 10m total
  • Belfast to Ontario
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl to Ontario 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 858,174 searches. Data last updated 5 August 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastMontreal

BFS Belfast Intl - YUL Montreal Pierre Elliott Trudeau Intl

BFSYUL

Belfast Intl

Mon 14/9

15:35-11:35

1 stop25h 00m

Montreal Pierre Elliott Trudeau Intl

Mon 28/9

18:50-19:05

1 stop19h 15m

£373
Fastest return journey

BelfastToronto

BFS Belfast Intl - YYZ Toronto Pearson Intl

BFSYYZ

Belfast Intl

Mon 7/9

21:35-11:00

1 stop18h 25m

Toronto Pearson Intl

Mon 14/9

19:15-12:30

1 stop12h 15m

£429

BelfastToronto

BFS Belfast Intl - YYZ Toronto Pearson Intl

BFSYYZ

Belfast Intl

Thu 17/9

06:10-22:05

2 stops20h 55m

Toronto Pearson Intl

Sat 24/10

23:25-17:50

2 stops14h 25m

£438

BelfastToronto

BFS Belfast Intl - YTZ Toronto Island

BFSYTZ

Belfast Intl

Thu 17/9

21:10-16:30

2 stops24h 20m

Toronto Island

Tue 22/9

10:30-14:00

2 stops22h 30m

£449

BelfastToronto

BFS Belfast Intl - YTZ Toronto Island

BFSYTZ

Belfast Intl

Fri 4/9

06:05-16:30

2 stops15h 25m

Toronto Island

Sun 13/9

16:55-20:15

2 stops22h 20m

£451

BelfastToronto

BFS Belfast Intl - YYZ Toronto Pearson Intl

BFSYYZ

Belfast Intl

Thu 17/9

06:10-22:05

2 stops20h 55m

Toronto Pearson Intl

Tue 22/9

20:45-21:05

2 stops19h 20m

£455

BelfastToronto

BFS Belfast Intl - YTZ Toronto Island

BFSYTZ

Belfast Intl

Tue 1/9

06:15-22:01

2 stops20h 46m

Toronto Island

Tue 8/9

11:55-21:05

2 stops28h 10m

£480

BelfastToronto

BFS Belfast Intl - YYZ Toronto Pearson Intl

BFSYYZ

Belfast Intl

Thu 17/9

21:05-15:00

2 stops22h 55m

Toronto Pearson Intl

Mon 21/9

19:15-12:30

1 stop12h 15m

£512

BelfastToronto

BFS Belfast Intl - YTZ Toronto Island

BFSYTZ

Belfast Intl

Mon 17/8

20:35-14:21

2 stops22h 46m

Toronto Island

Sun 23/8

16:30-18:25

2 stops20h 55m

£515

BelfastToronto

BFS Belfast Intl - YYZ Toronto Pearson Intl

BFSYYZ

Belfast Intl

Tue 1/9

05:55-10:00

2 stops33h 05m

Toronto Pearson Intl

Tue 8/9

23:55-23:20

2 stops18h 25m

£540

Flights are sorted by cheapest return flights first.

Deals found on 3/8

Showing 1-10 of 12 resultsSorted by cheapest first
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Best time to book a flight from Belfast Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Belfast Intl with our price prediction graph.
Estimated return 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 Belfast Intl Airport to Ontario

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 Belfast Intl to Ontario. 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 Belfast Intl Airport to Region of Ontario?

    The most popular route from Belfast Intl Airport to Region of Ontario is Belfast Intl - Toronto Pearson Intl. You may also consider Belfast Intl - Montreal Pierre Elliott Trudeau Intl or Belfast Intl - Toronto Island.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast Intl to Ontario 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

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

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

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

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