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$541+ Cheap flights from Northern Ireland to Ontario (ONT)

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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ONT
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
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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 septiembre 16, 2025.

Round-trip from

$636
(American Airlines)

One-way from

$541
(Iberia)

Popular in

August

Cheapest in

May

Average price

$659
From Northern Ireland to Ontario
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One-way flight from Northern Ireland to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Northern Ireland to Ontario

Best flights from Northern Ireland to Ontario
Discover carefully curated flight deals from Northern Ireland to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated septiembre 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/2611:05 amBHD - ONT
2 stops20h 38mAmerican Airlines
lun. 3/211:05 amONT - BHD
2 stops21h 00mAmerican Airlines
Deal found 9/13$636
This British Airways deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/511:05 amBHD - ONT
2 stops18h 35mBritish Airways
lun. 3/96:00 amONT - BHD
2 stops25h 15mBritish Airways
Deal found 9/13$639
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/510:40 amBHD - ONT
2 stops21h 03mAmerican Airlines
lun. 3/910:57 amONT - BHD
2 stops20h 18mAmerican Airlines
Deal found 9/14$636

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated septiembre 16, 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

BelfastOntario

BHD - ONT

BHDONT

Belfast City

jue. 2/26

11:05 am-11:43 pm

2 stops20h 38m

Ontario

lun. 3/2

11:05 am-4:05 pm

2 stops21h 00m

$636

BelfastOntario

BHD - ONT

BHDONT

Belfast City

jue. 3/5

10:40 am-11:43 pm

2 stops21h 03m

Ontario

lun. 3/9

10:57 am-2:15 pm

2 stops20h 18m

$636

BelfastOntario

BHD - ONT

BHDONT

Belfast City

jue. 3/5

11:05 am-9:40 pm

2 stops18h 35m

Ontario

lun. 3/9

6:00 am-2:15 pm

2 stops25h 15m

$639

BelfastOntario

BHD - ONT

BHDONT

Belfast City

mar. 11/18

11:25 am-10:29 pm

2 stops19h 04m

$541

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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 round-trip 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 month to book a flight from Northern Ireland to Ontario?

Currently, August is the cheapest month in which you can book a flight from Northern Ireland to Ontario (average of $246). Flying from Northern Ireland to Ontario in March is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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.

  • What airport do you fly into for flights to Ontario from Northern Ireland?

    If you book a flight to Ontario from Northern Ireland, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • How long is the flight from Northern Ireland to Ontario?

    American Airlines can get you from Northern Ireland to Ontario in just under 20h 38m. Your travel time can differ by up to . There are 5095 mi between Northern Ireland and Ontario.

  • 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 vacation 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.

  • What is the cheapest month to book a flight from Northern Ireland to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Northern Ireland to Ontario (average of $246). Flying from Northern Ireland to Ontario in March is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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