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Cheap flights from Ontario to Belfast Intl Airport from £179

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
20 May — 27 May1
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 20 April 2026.

Mon 1/622:55
YYZ
-
BFS
2 stops19h 25m
Multiple Airlines
Tue 16/616:40
BFS
-
YYZ
2 stops25h 40m
Multiple Airlines
Deal found 17/4£394
Mon 1/622:55
YYZ
-
BFS
2 stops19h 25m
Multiple Airlines
Mon 8/618:50
BFS
-
YYZ
2 stops25h 05m
Multiple Airlines
Deal found 18/4£396
Sun 17/521:55
YYZ
-
BFS
1 stop15h 55m
Multiple Airlines
Sun 24/519:35
BFS
-
YYZ
3 stops31h 10m
Multiple Airlines
Deal found 19/4£419
Mon 18/507:35
YYZ
-
BFS
2 stops22h 40m
Multiple Airlines
Tue 26/523:30
BFS
-
YYZ
3 stops27h 15m
Multiple Airlines
Deal found 17/4£423
Mon 11/521:35
YYZ
-
BFS
2 stops20h 45m
Multiple Airlines
Tue 19/516:40
BFS
-
YYZ
3 stops34h 05m
Multiple Airlines
Deal found 18/4£431
Mon 18/506:45
YUL
-
BFS
3 stops32h 55m
Multiple Airlines
Mon 25/518:50
BFS
-
YUL
3 stops28h 30m
Multiple Airlines
Deal found 18/4£448
Sun 10/506:45
YUL
-
BFS
2 stops32h 35m
Multiple Airlines
Fri 15/506:05
BFS
-
YUL
1 stop13h 10m
Multiple Airlines
Deal found 16/4£521
Sun 31/519:40
YOW
-
BFS
1 stop19h 35m
Multiple Airlines
Sun 7/621:05
BFS
-
YOW
2 stops32h 20m
Multiple Airlines
Deal found 16/4£530
Thu 4/618:55
YTZ
-
BFS
2 stops20h 40m
Multiple Airlines
Thu 11/621:10
BFS
-
YTZ
2 stops29h 38m
Multiple Airlines
Deal found 20/4£538
Tue 2/611:55
YTZ
-
BFS
2 stops21h 05m
Multiple Airlines
Tue 9/607:00
BFS
-
YTZ
3 stops42h 15m
Multiple Airlines
Deal found 18/4£543
Fri 29/518:25
YOW
-
BFS
2 stops32h 40m
Multiple Airlines
Mon 8/620:55
BFS
-
YOW
1 stop20h 45m
Multiple Airlines
Deal found 17/4£659
Sun 16/817:45
YUL
-
BFS
2 stops14h 05m
Multiple Airlines
Sat 22/810:10
BFS
-
YUL
1 stop15h 50m
Multiple Airlines
Deal found 19/4£681

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 20 April 2026.

Round-trip from

£394

One-way from

£179

Popular in

July

Cheapest in

April

Average price

£488
1/6-16/6
  • 1/6-16/6
  • 4 total stops
  • 45h 05m total
  • Ontario to Belfast
Search Deals
3/6
  • 3/6
  • 1 total stop
  • 18h 05m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£275 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 19% potential price decrease (£111 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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 20 April 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

Mon 18/5

07:35-11:15

2 stops22h 40m

Belfast Intl

Tue 26/5

23:30-21:45

3 stops27h 15m

£423

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 1/6

19:15-16:15

1 stop16h 00m

Belfast Intl

Mon 8/6

21:35-11:00

1 stop18h 25m

£440

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 1/6

19:15-20:40

1 stop20h 25m

Belfast Intl

Tue 16/6

21:15-11:00

1 stop18h 45m

£446

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Mon 18/5

06:45-20:40

3 stops32h 55m

Belfast Intl

Mon 25/5

18:50-18:20

3 stops28h 30m

£448

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 12/5

19:15-16:20

1 stop16h 05m

Belfast Intl

Tue 19/5

16:40-21:45

3 stops34h 05m

£448

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 11/5

19:15-16:15

1 stop16h 00m

Belfast Intl

Tue 19/5

21:15-11:00

1 stop18h 45m

£451

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 17/5

19:15-12:20

2 stops12h 05m

Belfast Intl

Sun 24/5

19:35-21:45

3 stops31h 10m

£454

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 19/7

22:15-08:05

1 stop28h 50m

Belfast Intl

Sun 26/7

07:10-13:20

2 stops35h 10m

£507

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 20/6

23:50-23:25

1 stop18h 35m

Belfast Intl

Sat 27/6

21:30-16:00

1 stop23h 30m

£508

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

06:45-20:20

2 stops32h 35m

Belfast Intl

Fri 15/5

06:05-14:15

1 stop13h 10m

£521

Flights are sorted by cheapest return flights first.

Deals found on 19/4

Showing 1-10 of 35 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 Toronto Island - 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
Ballymena
Cookstown
Dungannon

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

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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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