How long is the flight from Northern Ireland to Ontario?

British Airways can get you from Northern Ireland to Ontario in just under 23h 19m. Your travel time can differ by up to . There are 5095 mi between Northern Ireland and Ontario.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Northern Ireland to Ontario as you normally would.

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.

$506+ Flights from Northern Ireland to Ontario

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Cheap 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 December 18, 2025.

Fri 3/66:45 amBHD - ONT

2 stops23h 19mBritish Airways

Tue 3/106:00 amONT - BHD

2 stops22h 30mBritish Airways

Deal found 12/16

$707

Thu 1/299:05 amBHD - ONT

2 stops21h 08mBritish Airways

Mon 2/26:00 amONT - BHD

2 stops24h 15mBritish Airways

Deal found 12/16

$707

Sun 2/83:10 pmBHD - ONT

2 stops39h 38mBritish Airways

Fri 2/132:44 pmONT - BHD

2 stops18h 31mBritish Airways

Deal found 12/15

$1,428

Last-minute flights from Northern Ireland to Ontario
Discover last-minute flight deals from Northern Ireland to Ontario. Data last updated December 18, 2025 and is based on user searches.

Thu 1/299:05 amBHD - ONT

2 stops21h 08mBritish Airways

Mon 2/26:00 amONT - BHD

2 stops24h 15mBritish Airways

Deal found 12/16

$707

One-way flights from Northern Ireland to Ontario
Search for one-way flight options from Northern Ireland to Ontario. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Thu 1/156:30 amBFS - ONT

3 stops49h 29mMultiple Airlines

Deal found 12/16

$506

Thu 1/157:25 amBHD - ONT

3 stops48h 34mMultiple Airlines

Deal found 12/16

$535

Thu 1/111:05 amBHD - ONT

2 stops18h 47mMultiple Airlines

Deal found 12/16

$1,177

Thu 1/110:15 amBFS - ONT

3 stops38h 54mMultiple Airlines

Deal found 12/16

$1,349

Find flight deals from Northern Ireland to Ontario

Round-trip from	$706 (British Airways)
One-way from	$506 (Kiwi.com)
Popular in	December
Cheapest in	June
Average price	$1,192

From Northern Ireland to Ontario

Search Deals

One-way flight from Northern Ireland to Ontario

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($139 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).

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Average for round-trip flights in December 2025

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Cheapflights Fare Finder

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

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Fri 3/6

6:45 am-10:04 pm

2 stops23h 19m

Ontario

Tue 3/10

6:00 am-11:30 am

2 stops22h 30m

$707

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 1/29

9:05 am-10:13 pm

2 stops21h 08m

Ontario

Mon 2/2

6:00 am-2:15 pm

2 stops24h 15m

$707

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Sun 2/8

3:10 pm-10:48 pm

2 stops39h 38m

Ontario

Fri 2/13

2:44 pm-5:15 pm

2 stops18h 31m

$1,428

BelfastOntario

BFS - ONT

BFSONT

Belfast Intl

Thu 1/15

6:30 am-11:59 pm

3 stops49h 29m

$506

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 1/15

7:25 am-11:59 pm

3 stops48h 34m

$535

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 1/1

11:05 am-9:52 pm

2 stops18h 47m

$1,177

BelfastOntario

BFS - ONT

BFSONT

Belfast Intl

Thu 1/1

10:15 am-5:09 pm

3 stops38h 54m

$1,349

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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, 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 $678). 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

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?
British Airways can get you from Northern Ireland to Ontario in just under 23h 19m. 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, 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 $678). 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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$506+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Northern Ireland to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Northern Ireland to Ontario

Best flights from Northern Ireland to OntarioDiscover 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 December 18, 2025.

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 December 18, 2025.

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 December 18, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

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?

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?

How long is the flight from Northern Ireland to Ontario?

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

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

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

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

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Alternative routes for Northern Ireland to Ontario

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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 December 18, 2025.