Find flights
When to book
FAQs

Cheap flights from Ontario to Belfast from £240

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 23/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BHD
25 Mar — 1 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 February 2026.

Mon 30/322:35
YYZ
-
BFS
1 stop12h 40m
Multiple Airlines
Mon 13/409:15
BFS
-
YYZ
2 stops34h 00m
Multiple Airlines
Deal found 23/2£409
Mon 9/321:10
YUL
-
BFS
1 stop20h 30m
Multiple Airlines
Fri 13/317:30
BFS
-
YUL
1 stop23h 40m
Multiple Airlines
Deal found 20/2£495
Fri 1/520:25
YYZ
-
BFS
1 stop18h 25m
Multiple Airlines
Sun 31/507:10
BFS
-
YYZ
2 stops37h 40m
Multiple Airlines
Deal found 20/2£497
Mon 30/322:35
YYZ
-
BHD
1 stop16h 55m
Multiple Airlines
Mon 13/407:00
BHD
-
YYZ
1 stop14h 00m
Multiple Airlines
Deal found 23/2£499
Wed 8/408:00
YTZ
-
BFS
3 stops28h 05m
Multiple Airlines
Wed 15/408:30
BFS
-
YTZ
3 stops41h 50m
Multiple Airlines
Deal found 22/2£506
Sun 1/321:35
YYZ
-
BHD
1 stop17h 55m
Multiple Airlines
Sun 8/307:25
BHD
-
YYZ
1 stop12h 35m
Multiple Airlines
Deal found 21/2£512
Mon 13/420:25
YUL
-
BFS
1 stop17h 40m
Multiple Airlines
Wed 29/406:15
BFS
-
YUL
1 stop11h 35m
Multiple Airlines
Deal found 22/2£520
Mon 5/1018:20
YYZ
-
BFS
3 stops23h 45m
Multiple Airlines
Mon 12/1018:10
BFS
-
YYZ
2 stops24h 50m
Multiple Airlines
Deal found 22/2£523
Fri 22/519:20
YUL
-
BFS
2 stops31h 45m
Multiple Airlines
Sun 31/518:00
BFS
-
YUL
1 stop22h 35m
Multiple Airlines
Deal found 21/2£529
Wed 16/918:20
YYZ
-
BFS
3 stops23h 00m
Multiple Airlines
Mon 21/917:35
BFS
-
YYZ
2 stops25h 25m
Multiple Airlines
Deal found 19/2£529
Thu 15/1022:15
YYZ
-
BFS
1 stop17h 25m
Multiple Airlines
Tue 20/1016:55
BFS
-
YYZ
2 stops26h 05m
Multiple Airlines
Deal found 23/2£534
Mon 5/1022:55
YYZ
-
BHD
2 stops16h 35m
Multiple Airlines
Mon 12/1009:30
BHD
-
YYZ
3 stops33h 30m
Multiple Airlines
Deal found 22/2£536

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 February 2026.

Round-trip from

£409

One-way from

£240

Popular in

July

Cheapest in

October

Average price

£535
30/3-13/4
  • 30/3-13/4
  • 3 total stops
  • 46h 40m total
  • Ontario to Belfast
Search Deals
23/3
  • 23/3
  • 2 total stops
  • 32h 55m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£272 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (£101 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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 23 February 2026.
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 30/3

22:35-07:35

1 stop28h 00m

Belfast Intl

Mon 13/4

20:55-16:00

1 stop24h 05m

£455

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

21:10-21:40

1 stop20h 30m

Belfast Intl

Fri 13/3

17:30-13:10

1 stop23h 40m

£495

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Fri 1/5

20:25-19:50

1 stop18h 25m

Belfast Intl

Sun 31/5

07:10-15:50

2 stops37h 40m

£497

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 30/3

22:35-20:30

1 stop16h 55m

Belfast City

Mon 13/4

07:00-16:00

1 stop14h 00m

£499

TorontoBelfast

YTZ - BFS

YTZBFS

Toronto Island

Wed 8/4

08:00-17:05

3 stops28h 05m

Belfast Intl

Wed 15/4

08:30-21:20

3 stops41h 50m

£506

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

20:25-19:05

1 stop17h 40m

Belfast Intl

Wed 29/4

06:15-12:50

1 stop11h 35m

£520

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Fri 22/5

19:20-08:05

2 stops31h 45m

Belfast Intl

Sun 31/5

18:00-11:35

1 stop22h 35m

£529

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 7/4

20:25-23:45

1 stop22h 20m

Belfast Intl

Tue 14/4

16:55-13:30

1 stop25h 35m

£549

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Sat 7/3

21:35-20:50

1 stop18h 15m

Belfast City

Sat 14/3

07:25-16:00

1 stop12h 35m

£551

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 19/7

19:15-12:50

1 stop12h 35m

Belfast Intl

Wed 29/7

22:45-11:00

1 stop17h 15m

£553

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 52 results
1
2
3
...
6

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

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 9h 30m. Fly via British Airways or KLM to get the fastest option. Region of Ontario and Belfast are separated by a distance of 2953 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 Toronto Island - 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

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.