Find flights
When to book
FAQs

Cheap flights from Ontario to Belfast from £346

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 31/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BHD
17 Dec — 24 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Belfast

Keep the following information in mind while searching for Ontario to Belfast flight deals. Data was last updated 17 November 2025.

Round-trip from

£430

One-way from

£346

Popular in

July

Cheapest in

October

Average price

£1,266
2/3-10/3
  • 2/3-10/3
  • 2 total stops
  • 41h 45m total
  • Ontario to Belfast
Search Deals
Aer Lingus
  • Aer Lingus
  • 31/12
  • 2 total stops
  • 22h 25m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£259 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (£105 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 17 November 2025.

Tue 2/1221:35YYZ - BHD
1 stop11h 00mMultiple Airlines
Wed 10/1214:15BHD - YYZ
1 stop29h 45mMultiple Airlines
Deal found 15/11£524
Tue 2/1216:07YYZ - BHD
2 stops14h 23mAmerican Airlines
Wed 10/1211:25BHD - YYZ
2 stops15h 33mAmerican Airlines
Deal found 15/11£526
Tue 2/1219:40YYZ - BFS
2 stops17h 15mMultiple Airlines
Wed 10/1206:30BFS - YYZ
2 stops16h 45mMultiple Airlines
Deal found 15/11£554
Tue 2/1216:44YYZ - BHD
2 stops17h 06mBritish Airways
Wed 10/1206:35BHD - YYZ
1 stop13h 15mBritish Airways
Deal found 15/11£556
Tue 9/1220:00YYZ - BFS
2 stops17h 50mMultiple Airlines
Tue 16/1220:55BFS - YYZ
3 stops46h 50mMultiple Airlines
Deal found 16/11£580
Tue 9/1216:12YYZ - BHD
2 stops14h 18mAmerican Airlines
Tue 16/1206:35BHD - YYZ
2 stops15h 52mAmerican Airlines
Deal found 16/11£620
Sun 16/1118:20YYZ - BHD
2 stops14h 35mAmerican Airlines
Tue 18/1106:35BHD - YYZ
2 stops16h 45mAmerican Airlines
Deal found 15/11£665
Sun 30/1122:45YYZ - BFS
2 stops16h 25mMultiple Airlines
Sun 14/1205:45BFS - YYZ
3 stops19h 05mMultiple Airlines
Deal found 16/11£670
Wed 26/1112:00YYZ - BFS
3 stops22h 30mMultiple Airlines
Sun 30/1123:05BFS - YYZ
2 stops22h 10mMultiple Airlines
Deal found 15/11£698
Wed 31/1221:35YYZ - BFS
1 stop19h 45mMultiple Airlines
Wed 7/120:50BFS - YYZ
1 stop23h 10mMultiple Airlines
Deal found 15/11£731
Wed 19/1121:35YYZ - BFS
1 stop15h 20mMultiple Airlines
Fri 21/1106:30BFS - YYZ
1 stop13h 30mMultiple Airlines
Deal found 15/11£734
Tue 9/1218:05YYZ - BHD
2 stops17h 45mDelta
Tue 16/1206:30BHD - YYZ
1 stop14h 10mDelta
Deal found 16/11£758

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 17 November 2025.
Use the filters below to find and compare flights from Ontario to Belfast that are best for you.

Fly from

Ontario

Fly to

Belfast

Route

Depart

Return

Price

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 2/3

21:35-17:55

1 stop15h 20m

Belfast Intl

Tue 10/3

17:35-16:00

1 stop26h 25m

£430

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 2/3

22:05-20:15

1 stop17h 10m

Belfast City

Tue 10/3

06:35-19:00

2 stops16h 25m

£523

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Tue 2/12

21:35-13:35

1 stop11h 00m

Belfast City

Wed 10/12

14:15-15:00

1 stop29h 45m

£524

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Tue 2/12

16:07-11:30

2 stops14h 23m

Belfast City

Wed 10/12

11:25-21:58

2 stops15h 33m

£526

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 2/3

18:29-14:15

2 stops14h 46m

Belfast City

Tue 10/3

08:45-21:15

2 stops16h 30m

£532

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Sun 12/4

22:35-20:25

1 stop16h 50m

Belfast City

Wed 22/4

07:05-16:00

1 stop13h 55m

£536

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 12/4

22:35-14:35

1 stop11h 00m

Belfast Intl

Wed 22/4

06:10-16:00

1 stop14h 50m

£549

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 2/3

22:05-11:30

1 stop32h 25m

Belfast City

Tue 10/3

08:45-21:15

1 stop16h 30m

£550

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 2/12

19:40-17:55

2 stops17h 15m

Belfast Intl

Wed 10/12

06:30-18:15

2 stops16h 45m

£554

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Tue 13/1

20:40-11:30

1 stop9h 50m

Belfast City

Thu 22/1

17:45-18:45

1 stop30h 00m

£555

Flights are sorted by cheapest return flights first.

Deals found on 15/11

Showing 1-10 of 41 results
1
2
3
...
5

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

What is the cheapest month to book a flight from Region of Ontario to Belfast?

Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Belfast (average of £451). Flying from Region of Ontario to Belfast in July is currently the most expensive (average of £760). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Region of Ontario to Belfast?

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 14h 23m. Fly via British Airways, American Airlines, or KLM to get the fastest option. Region of Ontario and Belfast are separated by a distance of 3254 mi. This flight may include one or multiple stops.

  • 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.

  • What is the cheapest month to book a flight from Region of Ontario to Belfast?

    Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Belfast (average of £451). Flying from Region of Ontario to Belfast in July is currently the most expensive (average of £760). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.