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Cheap flights from Ireland to Ontario from C$ 270

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — YYZ
27 Apr — 4 May1
1 adult

Cheap flight deals from Ireland to Ontario

Keep the following information in mind while searching for Ireland to Ontario flight deals. Data was last updated 22 April 2025.

Round-trip from

C$ 563

One-way from

C$ 270

Popular in

December

Cheapest in

November

Average price

C$ 701

Good round-trip deal

C$ 714 or less

Good one-way deal

C$ 323 or less
Icelandair
  • Icelandair
  • 1/5-7/5
  • 2 total stops
  • 43h 45m total
  • Ireland to Ontario
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WestJet
  • WestJet
  • 10/6
  • 1 total stop
  • 12h 00m total
  • Ireland to Ontario
Search Deals
High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 2% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Ireland to Ontario.
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Price to beat on a one-way flight from Ireland to Ontario.
Search Deals

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 22 April 2025.

Thu 1/52:15 p.m.DUB - YYZ
1 stop12h 40mIcelandair
Wed 7/511:00 p.m.YYZ - DUB
1 stop31h 05mIcelandair
Deal found 22/4C$ 563
Tue 10/610:10 a.m.DUB - YYZ
1 stop12h 00mWestJet
Tue 17/62:30 p.m.YYZ - DUB
1 stop13h 30mWestJet
Deal found 22/4C$ 581
Sat 28/611:30 a.m.DUB - YYZ
Nonstop7h 40mMultiple Airlines
Wed 16/710:15 p.m.YYZ - DUB
1 stop21h 25mMultiple Airlines
Deal found 22/4C$ 585
Thu 19/61:15 p.m.DUB - YYZ
Nonstop7h 35mAir Transat
Wed 25/611:55 p.m.YYZ - DUB
Nonstop6h 35mAir Transat
Deal found 22/4C$ 644
Sat 17/512:00 p.m.DUB - YYZ
1 stop16h 14mAir France
Mon 26/511:30 p.m.YYZ - DUB
1 stop10h 30mAir France
Deal found 22/4C$ 646
Fri 16/51:15 p.m.DUB - YYZ
Nonstop7h 25mAer Lingus
Fri 23/55:25 p.m.YYZ - DUB
Nonstop6h 30mAer Lingus
Deal found 22/4C$ 676
Thu 19/61:15 p.m.DUB - YOW
1 stop12h 46mAir Transat
Mon 30/67:00 a.m.YOW - DUB
1 stop23h 30mAir Transat
Deal found 21/4C$ 693
Sat 17/512:00 p.m.DUB - YYZ
1 stop16h 14mKLM
Mon 26/54:45 p.m.YYZ - DUB
1 stop12h 40mKLM
Deal found 22/4C$ 695
Mon 28/49:50 a.m.DUB - YYZ
Nonstop7h 05mAir Canada
Mon 5/58:40 p.m.YYZ - DUB
Nonstop6h 35mAir Canada
Deal found 21/4C$ 697
Fri 6/67:05 p.m.DUB - YYZ
1 stop25h 35mScandinavian Airlines
Fri 13/65:10 p.m.YYZ - DUB
1 stop11h 15mScandinavian Airlines
Deal found 22/4C$ 709
Wed 4/66:40 p.m.DUB - YUL
1 stop25h 20mSWISS
Wed 11/64:40 p.m.YUL - DUB
1 stop20h 10mSWISS
Deal found 22/4C$ 712
Fri 6/61:00 p.m.DUB - YUL
1 stop31h 00mMultiple Airlines
Fri 13/68:10 a.m.YUL - DUB
1 stop18h 10mMultiple Airlines
Deal found 21/4C$ 716

Cheapflights Fare Finder

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 629,999 searches. Data last updated 22 April 2025.
Use the filters below to find and compare flights from Ireland to Ontario that are best for you.

Fly from

Ireland

Fly to

Ontario

Route

Depart

Return

Price

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Thu 1/5

2:15 p.m.-9:55 p.m.

1 stop12h 40m

Toronto Pearson Intl

Wed 7/5

11:00 p.m.-11:05 a.m.

1 stop31h 05m

C$ 563

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Tue 10/6

10:10 a.m.-5:10 p.m.

1 stop12h 00m

Toronto Pearson Intl

Tue 17/6

2:30 p.m.-9:00 a.m.

1 stop13h 30m

C$ 581

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Thu 5/6

1:15 p.m.-3:40 p.m.

Nonstop7h 25m

Toronto Pearson Intl

Thu 12/6

5:20 p.m.-4:55 a.m.

Nonstop6h 35m

C$ 604

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Thu 19/6

1:15 p.m.-3:50 p.m.

Nonstop7h 35m

Toronto Pearson Intl

Wed 25/6

11:55 p.m.-11:30 a.m.

Nonstop6h 35m

C$ 644

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Wed 28/5

7:05 p.m.-3:40 p.m.

1 stop25h 35m

Toronto Pearson Intl

Mon 2/6

5:10 p.m.-6:15 p.m.

1 stop20h 05m

C$ 657

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Wed 21/5

10:20 a.m.-4:51 p.m.

1 stop11h 31m

Toronto Pearson Intl

Wed 24/9

10:15 p.m.-3:30 p.m.

1 stop12h 15m

C$ 662

DublinMontreal

DUB - YUL

DUBYUL

Dublin

Thu 5/6

8:40 a.m.-3:00 p.m.

1 stop11h 20m

Montreal Pierre Elliott Trudeau Intl

Thu 12/6

4:40 p.m.-5:50 p.m.

1 stop20h 10m

C$ 688

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Thu 19/6

1:15 p.m.-9:01 p.m.

1 stop12h 46m

Ottawa

Mon 30/6

7:00 a.m.-11:30 a.m.

1 stop23h 30m

C$ 693

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Mon 28/4

9:50 a.m.-11:55 a.m.

Nonstop7h 05m

Toronto Pearson Intl

Mon 5/5

8:40 p.m.-8:15 a.m.

Nonstop6h 35m

C$ 697

DublinMontreal

DUB - YUL

DUBYUL

Dublin

Fri 6/6

1:00 p.m.-3:00 p.m.

1 stop31h 00m

Montreal Pierre Elliott Trudeau Intl

Fri 13/6

8:10 a.m.-7:20 a.m.

1 stop18h 10m

C$ 716

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/4

Showing 1-10 of 57 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.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Ontario

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

Currently, January is the cheapest month in which you can book a flight from Ireland to Region of Ontario (average of C$ 167). Flying from Ireland to Region of Ontario in July is currently the most expensive (average of C$ 258). 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.

What is the cheapest time of day to fly from IE to ON?

Find hourly flight availability from Ireland to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 April 2025.

When flying from Ireland to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Ireland to Region of Ontario

Explore weekly flight availability from Ireland to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 22 April 2025.

The most flights from IE0 to CAON are scheduled on a Monday (7 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (6 on average).

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 Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

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 Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 22 April 2025.
Read through reviews of airlines operating flights from Ireland to Ontario, such as Delta, KLM and Air Transat. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Tsechi,Aug 2023

DUB - AMS

This was the worst flying experience of my life. Every step of the way I was given the wrong information and/or mocked by the KLM employees. Never flying this airline again.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Tsechi,Aug 2023

DUB - AMS

This was the worst flying experience of my life. Every step of the way I was given the wrong information and/or mocked by the KLM employees. Never flying this airline again.
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Tsechi,Aug 2023

DUB - AMS

This was the worst flying experience of my life. Every step of the way I was given the wrong information and/or mocked by the KLM employees. Never flying this airline again.
Air Transat
7.8
Good
385 reviews
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Tsechi,Aug 2023

DUB - AMS

This was the worst flying experience of my life. Every step of the way I was given the wrong information and/or mocked by the KLM employees. Never flying this airline again.
Azores Airlines
7.5
Good
65 reviews
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Tsechi,Aug 2023

DUB - AMS

This was the worst flying experience of my life. Every step of the way I was given the wrong information and/or mocked by the KLM employees. Never flying this airline again.
SWISS
7.5
Good
1,582 reviews
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Tsechi,Aug 2023

DUB - AMS

This was the worst flying experience of my life. Every step of the way I was given the wrong information and/or mocked by the KLM employees. Never flying this airline again.

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 are the cheapest airlines to fly from Ireland to Region of Ontario one-way?

    C$ 270 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Icelandair and Air Transat, with prices starting from C$ 390 and C$ 510, respectively.

  • 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 Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Ireland to Region of Ontario (average of C$ 167). Flying from Ireland to Region of Ontario in July is currently the most expensive (average of C$ 258). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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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Top 7 airlines flying from Ireland to Ontario

Discover the top 7 airlines that operate flights from Ireland to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 22 April 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapestC$ 367AverageC$ 483FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IcelandairCheapestC$ 437AverageC$ 690FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
WestJetCheapestC$ 488AverageC$ 746FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Aer LingusCheapestC$ 513AverageC$ 701FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air TransatCheapestC$ 553AverageC$ 787FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapestC$ 568AverageC$ 836FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 611AverageC$ 997FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to Ontario?

Cheapflights helps you search for flights from Ireland to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ireland to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Ireland.

Can Cheapflights find flights from Ireland to Ontario with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ireland to Ontario flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ireland to Ontario become cheaper?

Of course! You can now track prices for flights from Ireland to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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