Find flights
When to book
Airlines
FAQs

Cheap flights from Northern Ireland to Ontario from £257

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 29/6. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — YYZ
27 Apr — 4 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 28 March 2026.

Sun 10/522:05
BFS
-
YYZ
2 stops22h 45m
Multiple Airlines
Sun 17/518:15
YYZ
-
BFS
3 stops24h 20m
Multiple Airlines
Deal found 26/3£445
Thu 23/409:00
BFS
-
YYZ
2 stops18h 05m
Multiple Airlines
Thu 30/423:10
YYZ
-
BFS
2 stops19h 20m
Multiple Airlines
Deal found 26/3£449
Wed 6/520:10
BFS
-
YYZ
3 stops30h 35m
Multiple Airlines
Wed 13/519:15
YYZ
-
BFS
1 stop16h 50m
Multiple Airlines
Deal found 27/3£452
Wed 10/615:40
BFS
-
YYZ
3 stops35h 05m
Multiple Airlines
Sun 14/607:35
YYZ
-
BFS
3 stops32h 55m
Multiple Airlines
Deal found 23/3£465
Mon 15/614:40
BFS
-
YYZ
1 stop28h 45m
Multiple Airlines
Mon 22/623:05
YYZ
-
BFS
2 stops19h 00m
Multiple Airlines
Deal found 23/3£471
Wed 10/616:10
BHD
-
YYZ
2 stops28h 40m
Multiple Airlines
Sun 14/622:05
YYZ
-
BHD
1 stop8h 50m
Multiple Airlines
Deal found 23/3£473
Mon 11/515:35
BFS
-
YUL
1 stop27h 25m
Multiple Airlines
Mon 18/518:50
YUL
-
BFS
1 stop19h 15m
Multiple Airlines
Deal found 27/3£486
Mon 15/621:55
BFS
-
YYZ
2 stops22h 55m
Multiple Airlines
Wed 24/622:05
YYZ
-
BFS
1 stop9h 00m
Multiple Airlines
Deal found 23/3£486
Tue 31/314:45
BFS
-
YUL
1 stop25h 20m
Multiple Airlines
Tue 7/418:20
YUL
-
BFS
1 stop11h 20m
Multiple Airlines
Deal found 23/3£532
Mon 15/618:10
BHD
-
YYZ
2 stops24h 10m
Multiple Airlines
Wed 24/622:05
YYZ
-
BHD
1 stop8h 50m
Multiple Airlines
Deal found 23/3£540
Thu 23/407:00
BHD
-
YYZ
2 stops20h 05m
Multiple Airlines
Thu 30/420:45
YYZ
-
BHD
2 stops16h 55m
Multiple Airlines
Deal found 26/3£560
Wed 10/608:15
BFS
-
YTZ
2 stops35h 00m
Multiple Airlines
Sun 14/616:55
YTZ
-
BFS
2 stops22h 20m
Multiple Airlines
Deal found 23/3£631

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 28 March 2026.

Round-trip from

£445

One-way from

£257
10/5-17/5
  • 10/5-17/5
  • 5 total stops
  • 47h 05m total
  • Northern Ireland to Ontario
Search Deals
29/6
  • 29/6
  • 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 28 March 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

Thu 23/4

09:00-22:05

2 stops18h 05m

Toronto Pearson Intl

Thu 30/4

23:10-23:30

2 stops19h 20m

£449

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Sun 10/5

19:20-17:15

3 stops26h 55m

Toronto Pearson Intl

Sun 17/5

18:15-23:35

3 stops24h 20m

£452

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Wed 6/5

15:40-21:45

3 stops35h 05m

Toronto Pearson Intl

Wed 13/5

19:15-21:00

2 stops20h 45m

£462

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Mon 15/6

14:40-14:25

1 stop28h 45m

Toronto Pearson Intl

Mon 22/6

23:05-23:05

2 stops19h 00m

£471

BelfastMontreal

BFS - YUL

BFSYUL

Belfast Intl

Mon 11/5

15:35-14:00

1 stop27h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 18/5

18:50-19:05

1 stop19h 15m

£486

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Mon 15/6

06:40-13:10

1 stop11h 30m

Toronto Pearson Intl

Sun 21/6

22:05-12:50

1 stop9h 45m

£558

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Tue 16/6

07:35-16:00

1 stop13h 25m

Toronto Pearson Intl

Mon 22/6

21:35-16:00

2 stops13h 25m

£577

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Mon 14/9

06:30-15:50

2 stops14h 20m

Toronto Pearson Intl

Mon 14/9

21:35-23:20

2 stops20h 45m

£619

BelfastToronto

BFS - YTZ

BFSYTZ

Belfast Intl

Wed 10/6

08:15-14:15

2 stops35h 00m

Toronto Island

Sun 14/6

16:55-20:15

2 stops22h 20m

£631

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Wed 16/9

19:40-20:15

1 stop29h 35m

Montreal Pierre Elliott Trudeau Intl

Sun 18/10

22:00-14:35

1 stop11h 35m

£635

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 39 resultsSorted by cheapest first
1
2
3
4

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 28 March 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
7,825 reviews
Check prices

Comfort

6.8

Overall

6.7

Boarding

6.9

Food

6.4

Crew

7.6

Entertainment

6.4

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
7,825 reviews
British Airways
6.7
Okay
7,825 reviews
Check prices

Comfort

6.8

Overall

6.7

Boarding

6.9

Food

6.4

Crew

7.6

Entertainment

6.4

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 29h 35m. 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

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.

Alternative routes for Northern Ireland to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Vancouver Intl flights
Heathrow to Pearson Intl flights
Gatwick to Vancouver Intl flights
Gatwick to Pearson Intl flights
Heathrow to Toronto Island flights
London City to Vancouver Intl flights
Stansted to Pearson Intl flights
London City to Pearson Intl flights
Stansted to Vancouver Intl flights
Heathrow to Calgary flights
Heathrow to Pierre Elliott Trudeau Intl flights
Luton to Pearson Intl flights
Gatwick to Toronto Island flights
Manchester to Pearson Intl flights
Heathrow to Abbotsford flights
Gatwick to Pierre Elliott Trudeau Intl flights
Luton to Vancouver Intl flights
Edinburgh to Pearson Intl flights
Gatwick to Calgary flights
London City to Calgary flights
Heathrow to Halifax flights
Manchester to Vancouver Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
Stansted to Calgary flights
Glasgow Intl to Pearson Intl flights
London City to Pierre Elliott Trudeau Intl flights
Heathrow to Ottawa flights
Southend to Pearson Intl flights
Luton to Calgary flights
Luton to Pierre Elliott Trudeau Intl flights
Manchester to Toronto Island flights
Edinburgh to Vancouver Intl flights
Heathrow to Edmonton flights
Gatwick to Halifax flights
Manchester to Calgary flights
Newcastle upon Tyne to Vancouver Intl flights
Birmingham to Pearson Intl flights
Edinburgh to Toronto Island flights
Stansted to Halifax flights
Manchester to Pierre Elliott Trudeau Intl flights
Gatwick to Edmonton flights
Gatwick to Ottawa flights
Heathrow to Winnipeg flights
London City to Edmonton flights
Heathrow to Kelowna flights
London City to Halifax flights
Birmingham to Vancouver Intl flights
Stansted to Edmonton flights

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 28 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£416Average£523FlexibilityNo 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!

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.