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Cheap flights from Ontario to Belfast Intl Airport from £149

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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
3 Sep — 10 Sep1
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 4 August 2026.

Mon 31/807:35 -
2 stops32h 05m
Mon 7/921:25 -
2 stops22h 35m
Deal found 1/8£405
Fri 9/1022:15 -
1 stop17h 30m
Wed 14/1016:55 -
2 stops33h 30m
Deal found 30/7£409
Tue 15/921:55 -
2 stops20h 25m
Tue 22/920:15 -
2 stops24h 35m
Deal found 30/7£431
Sun 13/917:45 -
2 stops22h 15m
Sun 20/920:20 -
2 stops29h 40m
Deal found 4/8£459
Sun 27/922:05 -
1 stop17h 10m
Tue 6/1016:00 -
1 stop27h 15m
Deal found 2/8£485
Thu 10/916:00 -
2 stops23h 35m
Tue 15/906:15 -
1 stop11h 25m
Deal found 30/7£487
Tue 15/908:19 -
2 stops24h 41m
Tue 22/906:15 -
2 stops15h 15m
Deal found 31/7£493
Fri 16/1019:20 -
2 stops20h 25m
Sat 24/1008:20 -
2 stops21h 05m
Deal found 30/7£546
Mon 14/910:00 -
2 stops28h 05m
Tue 22/906:15 -
2 stops31h 45m
Deal found 3/8£566
Sun 30/815:35 -
2 stops21h 50m
Sun 6/920:20 -
2 stops29h 40m
Deal found 2/8£575

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 4 August 2026.

Round-trip from

£405

One-way from

£149
31/8-7/9
  • 31/8-7/9
  • 4 total stops
  • 54h 40m total
  • Ontario to Belfast
Search Deals
24/8
  • 24/8
  • 2 total stops
  • 43h 45m total
  • Ontario to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 4 August 2026.
Use the filters below to find and compare flights from Ontario to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Fri 9/10

22:15-20:45

1 stop17h 30m

Belfast Intl

Wed 14/10

16:55-21:25

2 stops33h 30m

£409

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 15/9

21:55-16:20

1 stop13h 25m

Belfast Intl

Tue 22/9

23:30-15:50

2 stops21h 20m

£434
Fastest return journey

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 31/8

19:15-16:15

1 stop16h 00m

Belfast Intl

Mon 7/9

21:35-11:00

1 stop18h 25m

£443

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Sun 13/9

17:45-21:00

2 stops22h 15m

Belfast Intl

Sun 20/9

20:20-21:00

2 stops29h 40m

£459

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 6/10

23:50-21:20

1 stop16h 30m

Belfast Intl

Tue 13/10

21:25-16:00

1 stop23h 35m

£476

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Sun 27/9

22:05-20:15

1 stop17h 10m

Belfast Intl

Tue 6/10

16:00-14:15

1 stop27h 15m

£485

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Thu 10/9

16:00-20:35

2 stops23h 35m

Belfast Intl

Tue 15/9

06:15-12:40

1 stop11h 25m

£487

TorontoBelfast

YTZ - BFS

YTZBFS

Toronto Island

Tue 15/9

08:19-14:00

2 stops24h 41m

Belfast Intl

Tue 22/9

06:15-16:30

2 stops15h 15m

£493

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Fri 16/10

19:20-20:45

2 stops20h 25m

Belfast Intl

Sat 24/10

08:20-00:25

2 stops21h 05m

£546

TorontoBelfast

YTZ - BFS

YTZBFS

Toronto Island

Mon 14/9

10:00-19:05

2 stops28h 05m

Belfast Intl

Tue 22/9

06:15-09:00

2 stops31h 45m

£566

Flights are sorted by cheapest return flights first.

Deals found on 30/7

Showing 1-10 of 29 resultsSorted by cheapest first
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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 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 Ontario to Belfast Intl Airport

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 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?

    Most travelers choose Toronto Pearson Intl - Belfast Intl, Montreal Pierre Elliott Trudeau Intl - Belfast Intl or Ottawa - Belfast Intl when deciding on the best route from Region of Ontario to Belfast Intl Airport.

  • 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 holiday 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

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry

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

Need flexible booking options for your flight to Belfast Intl from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from Ontario today and book when prices fit your budget.

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