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Cheap flights from Ontario to Belfast 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 — BHD
4 Sep — 11 Sep1
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 5 August 2026.

Mon 31/807:35 -
2 stops32h 05m
Mon 7/921:25 -
2 stops22h 35m
Deal found 1/8£405
Tue 15/919:15 -
1 stop16h 05m
Tue 22/910:30 -
1 stop29h 30m
Deal found 31/7£436
Thu 15/1021:35 -
2 stops19h 10m
Mon 19/1008:20 -
2 stops34h 40m
Deal found 4/8£455
Tue 13/1022:45 -
1 stop14h 05m
Sat 31/1007:25 -
1 stop12h 35m
Deal found 4/8£456
Sun 13/917:45 -
2 stops22h 15m
Sun 20/920:20 -
2 stops29h 40m
Deal found 4/8£459
Sun 13/921:55 -
1 stop18h 05m
Sun 20/907:10 -
1 stop13h 50m
Deal found 4/8£462
Tue 13/1019:10 -
2 stops13h 50m
Sat 31/1008:10 -
1 stop11h 50m
Deal found 4/8£465
Sun 13/921:55 -
1 stop9h 00m
Sun 20/907:00 -
1 stop13h 40m
Deal found 4/8£481
Sun 27/922:05 -
1 stop17h 10m
Tue 6/1016:00 -
1 stop27h 15m
Deal found 2/8£485
Tue 15/908:19 -
2 stops24h 41m
Tue 22/906:15 -
2 stops15h 15m
Deal found 31/7£493
Tue 6/1022:45 -
1 stop15h 05m
Tue 13/1007:00 -
1 stop13h 40m
Deal found 2/8£504
Thu 10/916:00 -
2 stops23h 35m
Tue 15/920:55 -
2 stops32h 30m
Deal found 1/8£528

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 5 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 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 Ontario to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Tue 15/9

19:15-16:20

1 stop16h 05m

Belfast Intl

Tue 22/9

10:30-11:00

1 stop29h 30m

£436

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

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

TorontoBelfast

YYZ Toronto Pearson Intl - BHD Belfast City

YYZBHD

Toronto Pearson Intl

Tue 13/10

22:45-17:50

1 stop14h 05m

Belfast City

Sat 31/10

07:25-16:00

1 stop12h 35m

£456

MontrealBelfast

YUL Montreal Pierre Elliott Trudeau Intl - BFS Belfast Intl

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 Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Thu 15/10

21:35-21:45

2 stops19h 10m

Belfast Intl

Mon 19/10

06:30-14:10

1 stop12h 40m

£460

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Sun 13/9

23:50-07:55

1 stop27h 05m

Belfast Intl

Sun 20/9

22:10-16:00

1 stop22h 50m

£463

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

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

£477

MontrealBelfast

YUL Montreal Pierre Elliott Trudeau Intl - BFS Belfast Intl

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

TorontoBelfast

YTZ Toronto Island - BFS Belfast Intl

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

OttawaBelfast

YOW Ottawa - BFS Belfast Intl

YOWBFS

Ottawa

Thu 10/9

16:00-20:35

2 stops23h 35m

Belfast Intl

Tue 15/9

20:55-00:25

2 stops32h 30m

£528

Flights are sorted by cheapest return flights first.

Deals found on 1/8

Showing 1-10 of 60 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 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

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.

  • How long is the flight from Region of Ontario to Belfast?

    There are many flights that can get you from Region of Ontario to Belfast in 12h 40m. Fly via British Airways to get the fastest option. Region of Ontario and Belfast are separated by a distance of 2953 mi.

  • What are the most popular routes from Region of Ontario to Belfast?

    While some choose either Toronto Pearson Intl - Belfast City or Montreal Pierre Elliott Trudeau Intl - Belfast Intl, Toronto Pearson Intl - Belfast Intl is the most popular route from Region of Ontario to Belfast.

  • 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 holiday 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

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How does Cheapflights help users find flights from Ontario to Belfast?

Cheapflights makes it easy to find Ontario to Belfast flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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?

Certainly. Search results for flights to Belfast 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 become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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