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Cheap flights from Northern Ireland to Ontario from £253

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 17/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — YYZ
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 14 November 2025.

Round-trip from

£456

One-way from

£253

Popular in

August

Cheapest in

May
4/3-18/3
  • 4/3-18/3
  • 4 total stops
  • 33h 35m total
  • Northern Ireland to Ontario
Search Deals
17/1
  • 17/1
  • 2 total stops
  • 18h 36m total
  • Northern Ireland to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£23 potential savings vs. average return price).
Search Deals

Find 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 14 November 2025.

Thu 27/1109:05BHD - YUL
1 stop14h 40mAmerican Airlines
Mon 1/1214:29YUL - BHD
2 stops18h 46mAmerican Airlines
Deal found 11/11£574
Wed 26/1112:25BHD - YUL
1 stop11h 20mBritish Airways
Sun 30/1120:40YUL - BHD
1 stop31h 25mBritish Airways
Deal found 12/11£589
Mon 1/1206:30BFS - YYZ
1 stop13h 30mMultiple Airlines
Wed 3/1221:35YYZ - BFS
1 stop11h 10mMultiple Airlines
Deal found 12/11£593
Thu 27/1106:35BHD - YUL
1 stop17h 10mBritish Airways
Mon 1/1220:40YUL - BHD
1 stop12h 35mBritish Airways
Deal found 11/11£598
Thu 20/1111:05BHD - YUL
2 stops40h 35mAmerican Airlines
Mon 24/1120:40YUL - BHD
1 stop12h 35mAmerican Airlines
Deal found 12/11£601
Thu 27/1106:30BHD - YYZ
1 stop14h 10mDelta
Mon 1/1215:38YYZ - BHD
2 stops20h 12mDelta
Deal found 11/11£683
Thu 20/1117:20BHD - YUL
1 stop29h 00mVirgin Atlantic
Mon 24/1119:10YUL - BHD
1 stop20h 50mVirgin Atlantic
Deal found 12/11£705
Wed 26/1106:35BHD - YUL
2 stops21h 05mAmerican Airlines
Sun 30/1114:29YUL - BHD
2 stops14h 51mAmerican Airlines
Deal found 12/11£713
Thu 20/1117:20BHD - YUL
1 stop29h 00mDelta
Mon 24/1119:10YUL - BHD
1 stop20h 50mDelta
Deal found 11/11£718
Mon 1/1219:20BFS - YTZ
3 stops29h 30mMultiple Airlines
Wed 3/1211:45YTZ - BFS
3 stops30h 05mMultiple Airlines
Deal found 12/11£733
Thu 27/1106:35BHD - YYZ
2 stops15h 40mAmerican Airlines
Mon 1/1218:20YYZ - BHD
2 stops14h 55mAmerican Airlines
Deal found 12/11£764
Sat 27/1207:20BFS - YYZ
3 stops36h 05mMultiple Airlines
Sat 3/116:20YYZ - BFS
3 stops25h 20mMultiple Airlines
Deal found 12/11£990

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 14 November 2025.
Use the filters below to find and compare flights from Northern Ireland to Ontario that are best for you.

Fly from

Northern Ireland

Fly to

Ontario

Route

Depart

Return

Price

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Wed 4/3

08:35-18:15

2 stops14h 40m

Toronto Pearson Intl

Wed 18/3

20:40-19:35

2 stops18h 55m

£456

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Wed 4/3

07:25-18:15

2 stops15h 50m

Toronto Pearson Intl

Wed 18/3

20:40-20:30

2 stops19h 50m

£460

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Wed 4/3

12:25-21:59

2 stops14h 34m

Toronto Pearson Intl

Wed 18/3

23:05-14:15

1 stop11h 10m

£558

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Thu 27/11

09:05-18:45

1 stop14h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 1/12

15:49-14:15

2 stops17h 26m

£574

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Wed 26/11

12:25-18:45

1 stop11h 20m

Montreal Pierre Elliott Trudeau Intl

Sun 30/11

20:40-09:05

1 stop31h 25m

£589

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Mon 1/12

06:30-15:00

1 stop13h 30m

Toronto Pearson Intl

Wed 3/12

21:35-13:45

1 stop11h 10m

£593

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Thu 27/11

06:35-18:45

1 stop17h 10m

Montreal Pierre Elliott Trudeau Intl

Mon 1/12

20:40-14:15

1 stop12h 35m

£598

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Wed 4/3

06:35-20:15

1 stop18h 40m

Toronto Pearson Intl

Wed 18/3

18:40-09:10

1 stop10h 30m

£614

BelfastToronto

BHD - YTZ

BHDYTZ

Belfast City

Wed 4/3

10:15-20:50

3 stops39h 35m

Toronto Island

Wed 18/3

17:30-14:50

3 stops17h 20m

£655

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Thu 27/11

06:30-15:40

1 stop14h 10m

Toronto Pearson Intl

Mon 1/12

15:38-16:50

2 stops20h 12m

£683

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 43 results
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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

What is the cheapest time of day to fly from NIR to ON?

Find hourly flight availability from Northern Ireland to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 November 2025.

It’s typically best to fly out from Northern Ireland to Region of Ontario in the evening. Doing so could potentially save you 30% on the flight price compared to flying in the morning, which is usually more expensive.

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 14 November 2025.
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
7,520 reviews
Check prices

Crew

7.6

Comfort

6.7

Entertainment

6.4

Food

6.3

Overall

6.7

Boarding

6.9

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,520 reviews
British Airways
6.7
Okay
7,520 reviews
Check prices

Crew

7.6

Comfort

6.7

Entertainment

6.4

Food

6.3

Overall

6.7

Boarding

6.9

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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 14h 34m. The distance between Northern Ireland and Region of Ontario is about 3254 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

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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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£429Average£565FlexibilityNo 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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