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Cheap flights from Ireland to Ontario from C$ 288

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — YYZ
31 May — 7 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap 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 1 May 2026.

Wed 13/59:40 a.m.
DUB
-
YYZ
1 stop12h 35m
WestJet
Mon 18/59:35 p.m.
YYZ
-
DUB
Nonstop6h 45m
WestJet
Deal found 26/4C$ 610
Thu 18/69:40 a.m.
DUB
-
YYZ
1 stop10h 20m
WestJet
Fri 19/611:05 p.m.
YYZ
-
DUB
Nonstop6h 50m
WestJet
Deal found 27/4C$ 618
Sat 16/59:40 a.m.
DUB
-
YYZ
1 stop12h 35m
Multiple Airlines
Mon 25/510:10 p.m.
YYZ
-
DUB
1 stop21h 05m
Multiple Airlines
Deal found 30/4C$ 621
Sun 10/510:40 a.m.
DUB
-
YYZ
Nonstop7h 40m
WestJet
Mon 18/59:35 p.m.
YYZ
-
DUB
Nonstop6h 45m
WestJet
Deal found 28/4C$ 622
Sat 16/511:20 a.m.
DUB
-
YYZ
Nonstop7h 40m
WestJet
Mon 25/59:35 p.m.
YYZ
-
DUB
Nonstop6h 45m
WestJet
Deal found 30/4C$ 623
Fri 15/510:40 a.m.
DUB
-
YYZ
Nonstop7h 40m
WestJet
Sun 24/57:35 a.m.
YYZ
-
DUB
1 stop19h 45m
WestJet
Deal found 29/4C$ 625
Mon 4/59:40 a.m.
DUB
-
YYZ
1 stop12h 35m
WestJet
Sun 24/57:35 a.m.
YYZ
-
DUB
1 stop19h 45m
WestJet
Deal found 30/4C$ 627
Sat 2/59:40 a.m.
DUB
-
YYZ
1 stop12h 35m
WestJet
Fri 22/510:10 p.m.
YYZ
-
DUB
Nonstop6h 50m
WestJet
Deal found 30/4C$ 629
Sat 16/512:15 p.m.
DUB
-
YYZ
Nonstop7h 40m
WestJet
Fri 29/511:05 p.m.
YYZ
-
DUB
Nonstop6h 50m
WestJet
Deal found 27/4C$ 630
Wed 17/69:40 a.m.
DUB
-
YYZ
1 stop10h 20m
Multiple Airlines
Mon 29/610:10 p.m.
YYZ
-
DUB
1 stop21h 05m
Multiple Airlines
Deal found 27/4C$ 632
Sat 16/59:40 a.m.
DUB
-
YUL
2 stops19h 45m
Multiple Airlines
Sun 24/56:45 a.m.
YUL
-
DUB
2 stops35h 30m
Multiple Airlines
Deal found 29/4C$ 633
Tue 5/510:40 a.m.
DUB
-
YYZ
Nonstop7h 40m
Multiple Airlines
Sun 24/510:10 p.m.
YYZ
-
DUB
1 stop20h 05m
Multiple Airlines
Deal found 30/4C$ 633

Find flight deals from Ireland to Ontario

Keep the following information in mind while searching for Ireland to Ontario flight deals. Data was last updated 1 May 2026.

Round-trip from

C$ 610

One-way from

C$ 288

Popular in

June

Cheapest in

November

Average price

C$ 752

Good round-trip deal

C$ 710 or less

Good one-way deal

C$ 354 or less
WestJet
  • WestJet
  • 13/5-18/5
  • 1 total stop
  • 19h 20m total
  • Ireland to Ontario
Search Deals
WestJet
  • WestJet
  • 7/5
  • 2 total stops
  • 19h 45m total
  • Ireland to Ontario
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (C$ 537 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease (C$ 171 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
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.
Search Deals

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 1 May 2026.
Use the filters below to find and compare flights from Ireland to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ShannonToronto

SNN - YYZ

SNNYYZ

Shannon

Sat 6/6

12:00 p.m.-7:30 p.m.

1 stop12h 30m

Toronto Pearson Intl

Fri 12/6

6:20 p.m.-11:15 a.m.

1 stop11h 55m

C$ 673

ShannonToronto

SNN - YYZ

SNNYYZ

Shannon

Sat 13/6

12:00 p.m.-7:30 p.m.

1 stop12h 30m

Toronto Pearson Intl

Fri 19/6

6:20 p.m.-11:15 a.m.

1 stop11h 55m

C$ 697

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Tue 16/6

6:00 a.m.-4:20 p.m.

1 stop15h 20m

Toronto Pearson Intl

Mon 22/6

8:50 p.m.-8:15 a.m.

Nonstop6h 25m

C$ 701
Quickest round-trip

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Thu 3/9

9:20 a.m.-11:25 a.m.

Nonstop7h 05m

Toronto Pearson Intl

Sun 6/9

8:50 p.m.-8:15 a.m.

Nonstop6h 25m

C$ 713

ShannonToronto

SNN - YTZ

SNNYTZ

Shannon

Wed 3/6

12:30 p.m.-10:57 a.m.

2 stops27h 27m

Toronto Island

Sun 7/6

3:35 p.m.-10:15 a.m.

2 stops13h 40m

C$ 784

ShannonToronto

SNN - YYZ

SNNYYZ

Shannon

Fri 12/6

9:30 a.m.-7:37 p.m.

1 stop15h 07m

Toronto Pearson Intl

Fri 19/6

6:20 p.m.-11:15 a.m.

1 stop11h 55m

C$ 788

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Sun 18/10

8:50 a.m.-8:09 p.m.

2 stops16h 19m

Toronto Island

Sat 24/10

12:15 p.m.-10:55 a.m.

2 stops17h 40m

C$ 790

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Wed 10/6

12:30 p.m.-6:42 p.m.

1 stop11h 12m

Toronto Island

Tue 30/6

2:55 p.m.-7:20 a.m.

1 stop11h 25m

C$ 794

ShannonToronto

SNN - YYZ

SNNYYZ

Shannon

Thu 4/6

9:30 a.m.-3:46 p.m.

1 stop11h 16m

Toronto Pearson Intl

Mon 8/6

1:55 p.m.-10:15 a.m.

2 stops15h 20m

C$ 797

ShannonToronto

SNN - YYZ

SNNYYZ

Shannon

Wed 10/6

9:30 a.m.-8:44 p.m.

1 stop16h 14m

Toronto Pearson Intl

Tue 25/8

8:00 p.m.-10:15 a.m.

1 stop9h 15m

C$ 798

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 60 resultsSorted by cheapest first
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2
3
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6

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

How far ahead should I book a flight from Ireland to Region of Ontario?

To ensure you get the cheapest price possible for a flight from Ireland to Region of Ontario, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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$ 311). Flying from Ireland to Region of Ontario in August is currently the most expensive (average of C$ 1,877). 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 1 May 2026.

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 1 May 2026.

The most flights from IE0 to CAON are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (7 on average).

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 1 May 2026.
Check out reviews from past customers who have flown with Air Transat,Aer Lingus, andWestJet 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
546 reviews
Check prices

Entertainment

7.1

Boarding

7.9

Comfort

7.3

Crew

8.5

Food

6.8

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Transat
7.8
Good
546 reviews
Air Transat
7.8
Good
546 reviews
Check prices

Entertainment

7.1

Boarding

7.9

Comfort

7.3

Crew

8.5

Food

6.8

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Aer Lingus
7.3
Good
1,540 reviews
Air Transat
7.8
Good
546 reviews
Check prices

Entertainment

7.1

Boarding

7.9

Comfort

7.3

Crew

8.5

Food

6.8

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
WestJet
7.2
Good
3,331 reviews
Air Transat
7.8
Good
546 reviews
Check prices

Entertainment

7.1

Boarding

7.9

Comfort

7.3

Crew

8.5

Food

6.8

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Canada
7.1
Good
10,983 reviews
Air Transat
7.8
Good
546 reviews
Check prices

Entertainment

7.1

Boarding

7.9

Comfort

7.3

Crew

8.5

Food

6.8

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Icelandair
7.0
Good
646 reviews
Air Transat
7.8
Good
546 reviews
Check prices

Entertainment

7.1

Boarding

7.9

Comfort

7.3

Crew

8.5

Food

6.8

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.

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 12h 30m. Lufthansa provides one of the quickest options available for as low as C$ 673. There are 5116 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$ 182 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Transat and Icelandair, with prices starting from C$ 301 and C$ 306, 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$ 311). Flying from Ireland to Region of Ontario in August is currently the most expensive (average of C$ 1,877). 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

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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 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 1 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 514AverageC$ 569FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
WestJetCheapestC$ 532AverageC$ 708FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air TransatCheapestC$ 540AverageC$ 770FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapestC$ 609AverageC$ 814FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapestC$ 632AverageC$ 865FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 691AverageC$ 1,095FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
American AirlinesCheapestC$ 742AverageC$ 973FlexibilityNo cancel feeOn-time71%
Search American Airlines 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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