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Cheap flights from Northern Ireland to Ontario from £204

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 25/5. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — YYZ
12 May — 19 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Ontario
Explore the most affordable flight options available from Northern Ireland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 April 2026.

Thu 14/522:45
BFS
-
YUL
3 stops30h 40m
Multiple Airlines
Sun 24/506:45
YUL
-
BFS
2 stops33h 15m
Multiple Airlines
Deal found 10/4£417
Mon 25/509:15
BFS
-
YYZ
3 stops36h 55m
Multiple Airlines
Mon 1/622:55
YYZ
-
BFS
2 stops19h 25m
Multiple Airlines
Deal found 10/4£419
Thu 4/620:40
BHD
-
YYZ
2 stops28h 04m
Multiple Airlines
Mon 8/619:50
YYZ
-
BHD
1 stop19h 40m
Multiple Airlines
Deal found 11/4£430
Thu 4/621:10
BFS
-
YYZ
2 stops27h 34m
Multiple Airlines
Mon 8/619:50
YYZ
-
BFS
1 stop19h 25m
Multiple Airlines
Deal found 11/4£432
Wed 27/517:40
BFS
-
YYZ
1 stop22h 20m
Multiple Airlines
Wed 3/619:15
YYZ
-
BFS
1 stop15h 40m
Multiple Airlines
Deal found 12/4£459
Thu 14/518:20
BHD
-
YUL
3 stops29h 00m
Multiple Airlines
Sun 24/519:50
YUL
-
BHD
2 stops14h 05m
Multiple Airlines
Deal found 10/4£462
Sat 23/522:25
BFS
-
YYZ
1 stop17h 35m
Multiple Airlines
Sat 30/519:15
YYZ
-
BFS
1 stop20h 35m
Multiple Airlines
Deal found 8/4£510
Sun 10/522:00
BFS
-
YUL
2 stops21h 00m
Multiple Airlines
Sun 17/506:45
YUL
-
BFS
2 stops31h 05m
Multiple Airlines
Deal found 10/4£518
Tue 2/610:20
BHD
-
YUL
2 stops35h 42m
Multiple Airlines
Fri 5/622:05
YUL
-
BHD
1 stop10h 35m
Multiple Airlines
Deal found 8/4£522
Sat 23/506:20
BFS
-
YTZ
2 stops34h 40m
Multiple Airlines
Sat 30/517:00
YTZ
-
BFS
2 stops24h 40m
Multiple Airlines
Deal found 8/4£582
Sun 10/507:00
BHD
-
YUL
1 stop12h 15m
Multiple Airlines
Sun 17/517:10
YUL
-
BHD
2 stops22h 20m
Multiple Airlines
Deal found 10/4£605
Wed 27/506:15
BFS
-
YTZ
2 stops16h 10m
Multiple Airlines
Wed 3/618:55
YTZ
-
BFS
2 stops19h 40m
Multiple Airlines
Deal found 12/4£648

Find flight deals from Northern Ireland to Ontario

Keep the following information in mind while searching for Northern Ireland to Ontario flight deals. Data was last updated 12 April 2026.

Round-trip from

£417

One-way from

£204
14/5-24/5
  • 14/5-24/5
  • 5 total stops
  • 63h 55m total
  • Northern Ireland to Ontario
Search Deals
25/5
  • 25/5
  • 3 total stops
  • 39h 40m total
  • Northern Ireland to Ontario
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Ontario 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 12 April 2026.
Use the filters below to find and compare flights from Northern Ireland to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Mon 25/5

09:15-17:10

3 stops36h 55m

Toronto Pearson Intl

Mon 1/6

19:15-12:30

1 stop12h 15m

£453

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Wed 27/5

17:40-11:00

1 stop22h 20m

Toronto Pearson Intl

Wed 3/6

19:15-15:55

1 stop15h 40m

£459

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Thu 4/6

08:20-13:10

1 stop9h 50m

Toronto Pearson Intl

Mon 8/6

22:15-23:05

1 stop19h 50m

£507

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Sat 23/5

22:25-11:00

1 stop17h 35m

Toronto Pearson Intl

Sat 30/5

19:15-20:50

1 stop20h 35m

£510

BelfastMontreal

BFS - YUL

BFSYUL

Belfast Intl

Sun 10/5

22:00-14:00

2 stops21h 00m

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

06:45-18:50

2 stops31h 05m

£518

BelfastMontreal

BFS - YUL

BFSYUL

Belfast Intl

Thu 14/5

20:05-11:35

1 stop20h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 24/5

21:30-15:00

1 stop12h 30m

£541

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Tue 2/6

10:20-17:02

2 stops35h 42m

Montreal Pierre Elliott Trudeau Intl

Fri 5/6

15:10-20:30

2 stops24h 20m

£567

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Mon 18/5

06:40-13:10

1 stop11h 30m

Toronto Pearson Intl

Thu 21/5

18:15-22:50

2 stops23h 35m

£579

BelfastToronto

BFS - YTZ

BFSYTZ

Belfast Intl

Sat 23/5

06:20-12:00

2 stops34h 40m

Toronto Island

Sat 30/5

17:00-22:40

2 stops24h 40m

£582

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Sun 10/5

07:00-14:15

1 stop12h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

17:10-20:30

2 stops22h 20m

£605

Flights are sorted by cheapest return flights first.

Deals found on 10/4

Showing 1-10 of 37 resultsSorted by cheapest first
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Best time to book a flight from Northern Ireland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Northern Ireland 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 Northern Ireland to Ontario
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 12 April 2026.
Get a feel of what it's like to fly with British Airways from Northern Ireland to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,875 reviews
Check prices

Overall

6.7

Boarding

6.9

Crew

7.7

Entertainment

6.4

Food

6.4

Comfort

6.8

Reviews

1 / 20
6.0
Good

David,Jan 2026

LHR - MAD

It was a very old and tried plane. Lots of duck tape holding things together. Staff and food very good. Boarding was chaos at Madrid. Arrival in Lima swift and effective.
British Airways
6.7
Okay
7,875 reviews
British Airways
6.7
Okay
7,875 reviews
Check prices

Overall

6.7

Boarding

6.9

Crew

7.7

Entertainment

6.4

Food

6.4

Comfort

6.8

Reviews

1 / 20
6.0
Good

David,Jan 2026

LHR - MAD

It was a very old and tried plane. Lots of duck tape holding things together. Staff and food very good. Boarding was chaos at Madrid. Arrival in Lima swift and effective.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Ontario. 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 Northern Ireland to Region of Ontario?

    Departing from Northern Ireland to Region of Ontario will take you 13h 40m. The distance between Northern Ireland and Region of Ontario is about 2953 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland to Ontario 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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Alternative routes for Northern Ireland to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Northern Ireland to Ontario

Discover the top airline that operate flights from Northern Ireland to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£411Average£515FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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 Northern Ireland to Ontario?

Deals for Northern Ireland to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Ontario?

Cheapflights simply makes it quick and affordable to book flights from Northern Ireland to Ontario by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to Ontario from Northern Ireland? 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 Northern Ireland to Ontario 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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