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Cheap flights from Ontario to Northern Ireland from £199

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
22 Apr — 29 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Northern Ireland
Explore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 March 2026.

Mon 1/622:45
YUL
-
BFS
2 stops16h 40m
Multiple Airlines
Tue 9/608:00
BFS
-
YUL
2 stops41h 45m
Multiple Airlines
Deal found 18/3£440
Mon 1/622:45
YUL
-
BFS
2 stops16h 40m
Multiple Airlines
Sun 7/607:00
BFS
-
YUL
2 stops43h 10m
Multiple Airlines
Deal found 18/3£441
Mon 1/622:45
YUL
-
BHD
2 stops16h 45m
Multiple Airlines
Sun 7/607:00
BHD
-
YUL
2 stops43h 10m
Multiple Airlines
Deal found 18/3£457
Mon 1/622:45
YUL
-
BHD
2 stops16h 45m
Multiple Airlines
Tue 9/610:20
BHD
-
YUL
2 stops39h 25m
Multiple Airlines
Deal found 18/3£459
Mon 4/519:15
YYZ
-
BFS
2 stops23h 05m
Multiple Airlines
Mon 11/506:30
BFS
-
YYZ
2 stops14h 20m
Multiple Airlines
Deal found 19/3£459
Mon 4/519:15
YYZ
-
BFS
1 stop16h 00m
Multiple Airlines
Fri 15/519:20
BFS
-
YYZ
3 stops31h 25m
Multiple Airlines
Deal found 17/3£462
Tue 9/622:15
YYZ
-
BFS
1 stop16h 35m
Multiple Airlines
Mon 15/621:55
BFS
-
YYZ
2 stops20h 25m
Multiple Airlines
Deal found 17/3£469
Tue 14/419:50
YYZ
-
BFS
1 stop12h 05m
Multiple Airlines
Tue 21/416:55
BFS
-
YYZ
1 stop25h 00m
Multiple Airlines
Deal found 17/3£486
Sat 23/519:15
YYZ
-
BFS
1 stop20h 35m
Multiple Airlines
Sun 31/521:25
BFS
-
YYZ
1 stop18h 35m
Multiple Airlines
Deal found 20/3£497
Mon 8/622:10
YYZ
-
BFS
2 stops20h 55m
Multiple Airlines
Mon 15/621:55
BFS
-
YYZ
2 stops20h 25m
Multiple Airlines
Deal found 17/3£498
Sat 23/519:15
YYZ
-
BHD
1 stop14h 20m
Multiple Airlines
Sun 31/515:05
BHD
-
YYZ
1 stop24h 55m
Multiple Airlines
Deal found 20/3£501
Tue 21/419:50
YYZ
-
BFS
2 stops22h 30m
Multiple Airlines
Fri 24/419:55
BFS
-
YYZ
2 stops23h 20m
Multiple Airlines
Deal found 18/3£503

Find flight deals from Ontario to Northern Ireland

Keep the following information in mind while searching for Ontario to Northern Ireland flight deals. Data was last updated 23 March 2026.

Round-trip from

£440

One-way from

£199

Popular in

July

Cheapest in

February

Average price

£924
1/6-9/6
  • 1/6-9/6
  • 4 total stops
  • 58h 25m total
  • Ontario to Northern Ireland
Search Deals
5/5
  • 5/5
  • 3 total stops
  • 16h 00m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£252 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 18% potential price decrease (£112 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ontario to Northern Ireland 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 March 2026.
Use the filters below to find and compare flights from Ontario to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

22:45-20:25

2 stops16h 40m

Belfast Intl

Tue 9/6

08:00-20:45

2 stops41h 45m

£440

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 4/5

19:15-16:15

1 stop16h 00m

Belfast Intl

Mon 11/5

21:55-13:20

2 stops20h 25m

£465

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 14/4

19:50-12:55

1 stop12h 05m

Belfast Intl

Tue 21/4

16:55-12:55

1 stop25h 00m

£486

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 23/5

19:15-20:50

1 stop20h 35m

Belfast Intl

Sun 31/5

21:25-11:00

1 stop18h 35m

£497

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

22:05-14:00

1 stop10h 55m

Belfast Intl

Fri 15/5

20:15-14:15

1 stop23h 00m

£504

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 28/5

23:50-21:40

1 stop16h 50m

Belfast Intl

Fri 5/6

22:10-16:00

1 stop22h 50m

£504

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 6/4

22:35-07:35

1 stop28h 00m

Belfast Intl

Wed 22/4

21:35-16:00

1 stop23h 25m

£516

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

22:05-17:50

1 stop14h 45m

Belfast City

Fri 15/5

14:20-14:15

1 stop28h 55m

£519

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 23/5

23:50-23:25

1 stop18h 35m

Belfast Intl

Fri 29/5

22:10-16:00

1 stop22h 50m

£524

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 5/7

19:15-14:35

1 stop14h 20m

Belfast Intl

Sun 12/7

21:25-11:00

1 stop18h 35m

£528

Flights are sorted by cheapest return flights first.

Deals found on 21/3

Showing 1-10 of 56 resultsSorted by cheapest first
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6

Best time to book a flight from Ontario to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland 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 Northern Ireland
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 Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Ontario to Northern Ireland that include hotel bookings?

    Yes. In addition to deals on Ontario to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Northern Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Northern Ireland.

  • Can I find deals for business class flights from Ontario to Northern Ireland?

    Yes. Cheapflights offers flight deals from Ontario to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheapflights makes it easy to find Ontario to Northern Ireland 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 Northern Ireland?

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Can Cheapflights find flights from Ontario to Northern Ireland with no change fees?

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

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Not ready to book yet? You can track prices for flights from Ontario to Northern Ireland on Cheapflights with our Price Alert feature and get notified when better prices are available.

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