How long is the flight from Northern Ireland to Ontario?

American Airlines can get you from Northern Ireland to Ontario in just under 20h 53m. 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.

$798+ Cheap Flights from Northern Ireland to Ontario

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Cheap flight deals from Northern Ireland to Ontario

Round-trip from	$798 (American Airlines)
Popular in	February
Cheapest in	January

From Northern Ireland to Ontario

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($34 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).

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Find 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 November 3, 2025.

Sat 12/136:30 amBHD - ONT

2 stops18h 37mKLM

Sun 1/111:04 pmONT - BHD

2 stops19h 46mKLM

Deal found 11/3

$2,000

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 November 3, 2025.

Thu 3/511:05 amBHD - ONT

2 stops20h 53mAmerican Airlines

Mon 3/96:46 amONT - BHD

2 stops24h 29mAmerican Airlines

Deal found 10/31

$798

Last-minute flights from Northern Ireland to Ontario
Discover last-minute flight deals from Northern Ireland to Ontario. Data last updated November 3, 2025 and is based on user searches.

Sat 12/136:30 amBHD - ONT

2 stops18h 37mKLM

Sun 1/111:04 pmONT - BHD

2 stops19h 46mKLM

Deal found 11/3

$2,000

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 November 3, 2025.

Tue 11/116:45 amBHD - ONT

2 stops20h 56mBritish Airways

Deal found 11/2

$836

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

Thu 3/5

11:05 am-11:58 pm

2 stops20h 53m

Ontario

Mon 3/9

6:46 am-2:15 pm

2 stops24h 29m

$798

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Tue 11/11

6:45 am-7:41 pm

2 stops20h 56m

$836

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

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?
American Airlines can get you from Northern Ireland to Ontario in just under 20h 53m. 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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$798+ Cheap flights from Northern Ireland to Ontario (ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. 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

Keep the following information in mind while searching for Northern Ireland to Ontario flight deals. Data was last updated November 3, 2025.

Round-trip from

Popular in

Cheapest in

Find flight deals from Northern Ireland to Ontario

Cheapest flights from Northern Ireland to OntarioExplore 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 November 3, 2025.

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 November 3, 2025.

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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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 November 3, 2025.