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$598+ Cheap flights from 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ONT
Nov 19 — Nov 261
1 adult
Tue 11/19
Tue 11/26
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Cheap flight deals from Ireland to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Ireland (IE0) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 14, 2024.

Find flight deals from Ireland to Ontario

Cheapest flights from Ireland to Ontario
Explore the most affordable flight options available from Ireland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 14, 2024.

This United Airlines deal was found by Cheapflights users on 11/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/69:00 amDUB - ONT
2 stops40h 43mUnited Airlines
Wed 12/116:10 amONT - DUB
2 stops16h 50mUnited Airlines
Deal found 11/14$598
This Travelocity deal was found by Cheapflights users on 11/14. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/64:30 pmDUB - ONT
1 stop15h 29mMultiple Airlines
Wed 12/111:53 pmONT - DUB
1 stop15h 17mMultiple Airlines
Deal found 11/14$827
This Air France deal was found by Cheapflights users on 11/14. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/65:55 amDUB - ONT
2 stops24h 47mKLM
Wed 12/1110:00 pmONT - DUB
1 stop26h 25mKLM
Deal found 11/14$963
This American Airlines deal was found by Cheapflights users on 11/14. 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.
Sun 12/2911:30 amDUB - ONT
2 stops20h 27mAmerican Airlines
Sun 1/512:46 pmONT - DUB
2 stops17h 44mAmerican Airlines
Deal found 11/14$1,022
This Delta deal was found by Cheapflights users on 11/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2911:30 amDUB - ONT
1 stop31h 16mDelta
Sun 1/510:29 pmONT - DUB
2 stops25h 36mDelta
Deal found 11/14$1,380
This British Airways deal was found by Cheapflights users on 11/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/218:10 pmORK - ONT
2 stops34h 18mBritish Airways
Sat 1/47:15 amONT - ORK
2 stops19h 55mBritish Airways
Deal found 11/14$1,446
This Delta deal was found by Cheapflights users on 11/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/206:00 amORK - ONT
2 stops21h 41mDelta
Sun 1/56:52 amONT - ORK
2 stops22h 03mDelta
Deal found 11/14$1,654
This Netflights deal was found by Cheapflights users on 11/14. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/146:00 amORK - ONT
2 stops24h 42mKLM
Sat 12/215:30 amONT - ORK
2 stops23h 25mKLM
Deal found 11/14$2,417

Find flights from Ireland to Ontario within your budget

Customize your flight search to find flights from 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 2,752,363 searches. Data last updated November 14, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 12/6

9:00 am-5:43 pm

2 stops40h 43m

Ontario

Wed 12/11

6:10 am-7:00 am

2 stops16h 50m

$598

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 12/6

4:30 pm-11:59 pm

1 stop15h 29m

Ontario

Wed 12/11

1:53 pm-1:10 pm

1 stop15h 17m

$827

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 12/6

5:55 am-10:42 pm

2 stops24h 47m

Ontario

Wed 12/11

10:00 pm-8:25 am

1 stop26h 25m

$963

DublinOntario

DUB - ONT

DUBONT

Dublin

Sun 12/29

11:30 am-11:57 pm

2 stops20h 27m

Ontario

Sun 1/5

12:46 pm-2:30 pm

2 stops17h 44m

$1,022

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 1/9

11:00 am-11:58 pm

2 stops20h 58m

Ontario

Tue 1/21

10:56 am-1:30 pm

2 stops18h 34m

$1,306

DublinOntario

DUB - ONT

DUBONT

Dublin

Sun 12/29

11:30 am-10:46 am

1 stop31h 16m

Ontario

Sun 1/5

10:29 pm-8:05 am

2 stops25h 36m

$1,380

CorkOntario

ORK - ONT

ORKONT

Cork

Sat 12/21

8:10 pm-10:28 pm

2 stops34h 18m

Ontario

Sun 1/5

7:15 am-11:10 am

2 stops19h 55m

$1,446

CorkOntario

ORK - ONT

ORKONT

Cork

Fri 12/20

6:00 am-7:41 pm

2 stops21h 41m

Ontario

Sun 1/5

6:52 am-12:55 pm

2 stops22h 03m

$1,654

CorkOntario

ORK - ONT

ORKONT

Cork

Sat 12/14

6:00 am-10:42 pm

2 stops24h 42m

Ontario

Sat 12/21

5:30 am-12:55 pm

2 stops23h 25m

$2,417

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 1/27

6:00 am-4:28 pm

2 stops18h 28m

$625

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/14

Showing 1-10 of 19 results
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Best time to book a flight from Ireland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from 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 Ireland to Ontario

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

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

Currently, September is the cheapest month in which you can book a flight from Ireland to Ontario (average of $236). Flying from Ireland to Ontario in December is currently the most expensive (average of $298). 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 November 14, 2024.
See what other customers who have flown with KLM, United Airlines and Delta from Ireland to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,788 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,788 reviews
Delta
8.0
Very good
8,788 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,346 reviews
Delta
8.0
Very good
8,788 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,538 reviews
Delta
8.0
Very good
8,788 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
9,194 reviews
Delta
8.0
Very good
8,788 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,788 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from 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 Ireland?

    If you book a flight to Ontario from 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 Ireland to Ontario one-way?

    To fly one-way, consider booking your trip with Air France, which is currently one of the cheapest options available, starting at $625. KLM flights start at $630 while deals on Iberia start at $830 one-way.

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

    Yes. In addition to deals on Ireland to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Ontario.

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

    Yes. Cheapflights offers flight deals from 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 Ireland to Ontario?

    Currently, September is the cheapest month in which you can book a flight from Ireland to Ontario (average of $236). Flying from Ireland to Ontario in December is currently the most expensive (average of $298). 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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Alternative routes for Ireland to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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