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$639+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ONT
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Round-trip from

$639
(American Airlines)

Popular in

August

Cheapest in

January

Average price

$1,087
From Northern Ireland to Ontario
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($183 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

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 February 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/20. 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.
Thu 5/16:35 amBHD - ONT
2 stops23h 23mAmerican Airlines
Fri 5/91:15 pmONT - BHD
2 stops23h 30mAmerican Airlines
Deal found 2/20$639

Find flights from Northern Ireland to Ontario within your budget

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 20, 2025.

Fly from

Northern Ireland

Fly to

Ontario

Route

Depart

Return

Price

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Thu 5/1

6:35 am-9:58 pm

2 stops23h 23m

Ontario

Fri 5/9

1:15 pm-8:45 pm

2 stops23h 30m

$639

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Fri 5/23

6:30 am-4:19 pm

2 stops17h 49m

$1,600

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Fri 4/25

11:55 am-10:10 pm

2 stops18h 15m

$1,624

BelfastOntario

BHD - ONT

BHDONT

Belfast City

Fri 5/23

6:35 am-11:44 pm

2 stops25h 09m

$3,809

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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.

Travel insights for flights from Northern Ireland to Ontario

Get recent, data-driven insights about flights from Northern Ireland to Ontario including ideal travel times, pricing trends, and more.

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 $315). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

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.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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).

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 February 20, 2025.
KLM
7.8
Good
1,333 reviews

Comfort

7.7

Food

7.3

Entertainment

7.2

Overall

7.8

Crew

8.4

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,333 reviews
KLM
7.8
Good
1,333 reviews

Comfort

7.7

Food

7.3

Entertainment

7.2

Overall

7.8

Crew

8.4

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,333 reviews

Comfort

7.7

Food

7.3

Entertainment

7.2

Overall

7.8

Crew

8.4

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Iberia
7.0
Good
2,639 reviews
KLM
7.8
Good
1,333 reviews

Comfort

7.7

Food

7.3

Entertainment

7.2

Overall

7.8

Crew

8.4

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

British Airways
6.6
Okay
6,763 reviews
KLM
7.8
Good
1,333 reviews

Comfort

7.7

Food

7.3

Entertainment

7.2

Overall

7.8

Crew

8.4

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

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.

  • What are the cheapest airlines to fly from Northern Ireland to Ontario one-way?

    $1,600 is the cheapest one-way deal found within the past few days, from KLM. You may also be able to find cheap deals on British Airways and Iberia, with prices starting from $1,624 and $3,809, respectively.

  • 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 $315). 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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