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Cheap flights from Ireland to Ontario from C$ 406

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — YYZ
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

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 30 October 2025.

Round-trip from

C$ 573

One-way from

C$ 406

Popular in

June

Cheapest in

February

Average price

C$ 712

Good round-trip deal

C$ 819 or less

Good one-way deal

C$ 642 or less
Lufthansa
  • Lufthansa
  • 25/11-2/12
  • 3 total stops
  • 27h 19m total
  • Ireland to Ontario
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15/1
  • 15/1
  • 2 total stops
  • 33h 35m total
  • Ireland to Ontario
Search Deals
Highest demand for flights based on searches. 32% potential increase in price (C$ 554 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease (C$ 172 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Ireland to Ontario.
Search Deals
Price to beat on a one-way flight from Ireland to Ontario.
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Find flight deals from Ireland to Ontario

Enter your travel dates to find the best prices.

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 30 October 2025.

Thu 4/125:00 a.m.DUB - YYZ
2 stops16h 40mLufthansa
Mon 8/124:40 p.m.YYZ - DUB
1 stop13h 20mLufthansa
Deal found 29/10C$ 577
Tue 2/125:00 a.m.DUB - YYZ
2 stops18h 50mLufthansa
Tue 9/127:35 p.m.YYZ - DUB
Nonstop6h 35mLufthansa
Deal found 30/10C$ 581
Thu 13/119:20 a.m.DUB - YYZ
1 stop11h 55mLufthansa
Wed 19/117:45 p.m.YYZ - DUB
1 stop16h 25mLufthansa
Deal found 30/10C$ 584
Mon 17/115:10 a.m.DUB - YYZ
2 stops15h 24mLufthansa
Sun 23/117:35 p.m.YYZ - DUB
Nonstop6h 35mLufthansa
Deal found 29/10C$ 585
Mon 17/1111:45 a.m.DUB - YYZ
1 stop13h 05mMultiple Airlines
Sun 23/117:35 p.m.YYZ - DUB
Nonstop6h 35mMultiple Airlines
Deal found 29/10C$ 591
Fri 28/115:10 a.m.DUB - YYZ
1 stop16h 05mMultiple Airlines
Fri 5/127:35 p.m.YYZ - DUB
Nonstop6h 35mMultiple Airlines
Deal found 29/10C$ 592
Fri 21/119:25 a.m.DUB - YYZ
1 stop11h 50mMultiple Airlines
Fri 28/117:35 p.m.YYZ - DUB
Nonstop6h 35mMultiple Airlines
Deal found 30/10C$ 593
Thu 27/115:00 a.m.DUB - YYZ
1 stop19h 50mLufthansa
Thu 4/127:35 p.m.YYZ - DUB
Nonstop6h 35mLufthansa
Deal found 30/10C$ 600
Fri 14/119:00 a.m.DUB - YYZ
Nonstop7h 15mAir Canada
Sat 22/117:35 p.m.YYZ - DUB
Nonstop6h 35mAir Canada
Deal found 29/10C$ 603
Tue 25/115:00 a.m.DUB - YTZ
2 stops14h 55mMultiple Airlines
Tue 2/1212:30 p.m.YTZ - DUB
2 stops18h 30mMultiple Airlines
Deal found 28/10C$ 603
Mon 17/119:00 a.m.DUB - YYZ
Nonstop7h 15mAir Canada
Sun 23/117:35 p.m.YYZ - DUB
Nonstop6h 35mAir Canada
Deal found 30/10C$ 606
Mon 17/115:10 a.m.DUB - YTZ
2 stops17h 45mMultiple Airlines
Sun 23/113:30 p.m.YTZ - DUB
2 stops20h 40mMultiple Airlines
Deal found 28/10C$ 612

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 30 October 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

Fri 21/11

9:25 a.m.-4:15 p.m.

1 stop11h 50m

Toronto Pearson Intl

Fri 28/11

7:35 p.m.-7:10 a.m.

Nonstop6h 35m

C$ 593

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Wed 3/12

12:50 p.m.-5:55 p.m.

2 stops34h 05m

Toronto Island

Mon 8/12

12:30 p.m.-12:05 p.m.

2 stops18h 35m

C$ 620

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Mon 17/11

10:50 a.m.-9:35 p.m.

2 stops15h 45m

Toronto Island

Sun 23/11

5:30 p.m.-5:10 p.m.

2 stops18h 40m

C$ 624

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Tue 2/12

5:00 a.m.-5:55 p.m.

2 stops17h 55m

Toronto Island

Tue 9/12

12:30 p.m.-9:55 a.m.

2 stops16h 25m

C$ 638

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Fri 21/11

5:10 a.m.-2:55 p.m.

2 stops14h 45m

Toronto Island

Thu 27/11

8:50 a.m.-7:30 a.m.

2 stops17h 40m

C$ 642

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Fri 21/11

9:00 a.m.-11:15 a.m.

Nonstop7h 15m

Toronto Pearson Intl

Thu 27/11

9:30 a.m.-7:30 a.m.

1 stop17h 00m

C$ 660

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Fri 21/11

5:55 a.m.-3:40 p.m.

1 stop14h 45m

Toronto Pearson Intl

Thu 27/11

12:08 p.m.-7:45 a.m.

2 stops14h 37m

C$ 667

CorkToronto

ORK - YYZ

ORKYYZ

Cork

Thu 27/11

6:00 a.m.-3:40 p.m.

1 stop14h 40m

Toronto Pearson Intl

Fri 5/12

6:43 p.m.-3:00 p.m.

2 stops15h 17m

C$ 683

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Tue 2/12

8:55 a.m.-7:15 p.m.

2 stops15h 20m

Toronto Pearson Intl

Sun 14/12

12:23 p.m.-7:45 a.m.

1 stop14h 22m

C$ 701

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Fri 5/12

9:30 a.m.-7:45 p.m.

2 stops15h 15m

Toronto Pearson Intl

Sun 7/12

2:57 p.m.-10:20 a.m.

2 stops14h 23m

C$ 709

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 60 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, May is the cheapest month in which you can book a flight from Ireland to Region of Ontario (average of C$ 316). Flying from Ireland to Region of Ontario in August is currently the most expensive (average of C$ 645). 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 30 October 2025.

It’s optimal to fly from Ireland to Region of Ontario in the evening. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the morning.

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 30 October 2025.
Check out reviews from past customers who have flown with Air Transat,Aer Lingus, andAir Canada from Ireland to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
469 reviews
Check prices

Comfort

7.4

Entertainment

7.1

Crew

8.5

Overall

7.8

Boarding

7.9

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Transat
7.8
Good
469 reviews
Air Transat
7.8
Good
469 reviews
Check prices

Comfort

7.4

Entertainment

7.1

Crew

8.5

Overall

7.8

Boarding

7.9

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Aer Lingus
7.2
Good
1,365 reviews
Air Transat
7.8
Good
469 reviews
Check prices

Comfort

7.4

Entertainment

7.1

Crew

8.5

Overall

7.8

Boarding

7.9

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Canada
7.1
Good
10,382 reviews
Air Transat
7.8
Good
469 reviews
Check prices

Comfort

7.4

Entertainment

7.1

Crew

8.5

Overall

7.8

Boarding

7.9

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Icelandair
7.1
Good
562 reviews
Air Transat
7.8
Good
469 reviews
Check prices

Comfort

7.4

Entertainment

7.1

Crew

8.5

Overall

7.8

Boarding

7.9

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Lufthansa
6.8
Okay
7,542 reviews
Air Transat
7.8
Good
469 reviews
Check prices

Comfort

7.4

Entertainment

7.1

Crew

8.5

Overall

7.8

Boarding

7.9

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.

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.

  • How long is the flight from Ireland to Region of Ontario?

    A quick flight from Ireland to Region of Ontario can take about 7h 15m. SWISS provides one of the quickest options available for as low as C$ 660. There are 5258 km between Ireland and Region of Ontario. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    C$ 423 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Lufthansa and Air Canada, with prices starting from C$ 708 and C$ 726, 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, May is the cheapest month in which you can book a flight from Ireland to Region of Ontario (average of C$ 316). Flying from Ireland to Region of Ontario in August is currently the most expensive (average of C$ 645). 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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Top 6 airlines flying from Ireland to Ontario

Discover the top 6 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 30 October 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 462AverageC$ 604FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
WestJetCheapestC$ 521AverageC$ 699FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air TransatCheapestC$ 552AverageC$ 740FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapestC$ 564AverageC$ 713FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapestC$ 573AverageC$ 835FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 640AverageC$ 896FlexibilityNo 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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