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Ontario

$576+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ONT
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
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Cheap flight deals from Northern Ireland to Ontario

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 February 6, 2026.

This British Airways deal was found by Cheapflights users on 2/2. 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.
Wed 2/119:15 am
BHD
-
ONT
2 stops21h 33m
British Airways
Sun 2/1511:58 pm
ONT
-
BHD
2 stops34h 37m
British Airways
Deal found 2/2$1,043
This British Airways deal was found by Cheapflights users on 2/2. 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.
Thu 2/126:35 am
BHD
-
ONT
2 stops25h 24m
British Airways
Mon 2/162:39 pm
ONT
-
BHD
2 stops17h 26m
British Airways
Deal found 2/2$1,084

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 February 6, 2026.

Popular in

December

Cheapest in

June

Average price

$1,087
Highest demand for flights based on searches. 15% potential increase in price ($140 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 6, 2026.
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

Tue 4/28

9:40 am-10:36 pm

2 stops20h 56m

$576

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Wed 7/15

6:30 am-6:12 pm

2 stops19h 42m

$1,089

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Sat 7/18

9:35 am-9:51 pm

2 stops20h 16m

$1,172

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Sun 4/19

1:10 pm-9:59 pm

2 stops16h 49m

$10,638

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

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 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, November is the cheapest month in which you can book a flight from Northern Ireland to Ontario (average of $477). Flying from Northern Ireland to Ontario in December is currently the most expensive (average of $675). 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.

  • 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, November is the cheapest month in which you can book a flight from Northern Ireland to Ontario (average of $477). Flying from Northern Ireland to Ontario in December is currently the most expensive (average of $675). 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.

See more FAQs

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