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Cheap flights from Ireland to Ontario from C$ 145

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — YYZ
28 Feb — 7 Mar1
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 29 January 2026.

Tue 28/410:40 a.m.
DUB
-
YUL
1 stop12h 45m
WestJet
Sat 9/56:45 a.m.
YUL
-
DUB
2 stops44h 35m
WestJet
Deal found 27/1C$ 578
Tue 10/310:30 a.m.
DUB
-
YYZ
Nonstop7h 45m
Multiple Airlines
Fri 20/311:45 p.m.
YYZ
-
DUB
2 stops16h 35m
Multiple Airlines
Deal found 29/1C$ 610
Thu 12/37:05 p.m.
DUB
-
YYZ
1 stop25h 35m
Scandinavian Airlines
Wed 18/36:10 p.m.
YYZ
-
DUB
1 stop20h 10m
Scandinavian Airlines
Deal found 29/1C$ 611
Fri 1/59:50 a.m.
DUB
-
YYZ
Nonstop7h 05m
Air Canada
Sat 9/58:45 p.m.
YYZ
-
DUB
Nonstop6h 30m
Air Canada
Deal found 28/1C$ 614
Fri 1/59:50 a.m.
DUB
-
YYZ
Nonstop7h 05m
Multiple Airlines
Sun 10/56:20 p.m.
YYZ
-
DUB
1 stop12h 15m
Multiple Airlines
Deal found 28/1C$ 615
Sat 5/99:50 a.m.
DUB
-
YTZ
1 stop9h 31m
Air Canada
Sun 13/94:30 p.m.
YTZ
-
DUB
1 stop10h 15m
Air Canada
Deal found 28/1C$ 616
Sat 14/310:30 a.m.
DUB
-
YYZ
Nonstop7h 45m
Multiple Airlines
Sat 21/33:25 p.m.
YYZ
-
DUB
2 stops27h 35m
Multiple Airlines
Deal found 28/1C$ 619
Wed 8/45:55 a.m.
DUB
-
YYZ
1 stop15h 25m
Lufthansa
Tue 14/48:45 p.m.
YYZ
-
DUB
Nonstop6h 30m
Lufthansa
Deal found 27/1C$ 620
Sat 20/61:15 p.m.
DUB
-
YYZ
Nonstop7h 35m
Air Transat
Sat 27/611:55 p.m.
YYZ
-
DUB
Nonstop6h 35m
Air Transat
Deal found 27/1C$ 622
Wed 8/45:55 a.m.
DUB
-
YYZ
1 stop11h 35m
Lufthansa
Mon 13/48:45 p.m.
YYZ
-
DUB
Nonstop6h 30m
Lufthansa
Deal found 27/1C$ 623
Fri 6/29:00 a.m.
DUB
-
YYZ
Nonstop7h 15m
Air Canada
Sun 22/27:35 p.m.
YYZ
-
DUB
Nonstop6h 35m
Air Canada
Deal found 27/1C$ 626
Thu 12/310:30 a.m.
DUB
-
YYZ
Nonstop7h 45m
Multiple Airlines
Fri 20/311:45 p.m.
YYZ
-
DUB
1 stop30h 35m
Multiple Airlines
Deal found 26/1C$ 627

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 29 January 2026.

Round-trip from

C$ 578

One-way from

C$ 145

Popular in

June

Cheapest in

February

Average price

C$ 840

Good round-trip deal

C$ 657 or less

Good one-way deal

C$ 369 or less
WestJet
  • WestJet
  • 28/4-9/5
  • 3 total stops
  • 57h 20m total
  • Ireland to Ontario
Search Deals
WestJet
  • WestJet
  • 3/3
  • Nonstop
  • 7h 45m total
  • Ireland to Ontario
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (C$ 509 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease (C$ 160 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 29 January 2026.
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

DublinMontreal

DUB - YUL

DUBYUL

Dublin

Tue 28/4

10:40 a.m.-6:25 p.m.

1 stop12h 45m

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

6:45 a.m.-8:20 a.m.

2 stops44h 35m

C$ 578

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Fri 1/5

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

Nonstop7h 05m

Toronto Pearson Intl

Sun 10/5

6:20 p.m.-11:35 a.m.

1 stop12h 15m

C$ 615

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Wed 6/5

12:25 p.m.-7:30 p.m.

1 stop12h 05m

Toronto Pearson Intl

Sun 10/5

8:45 p.m.-8:15 a.m.

Nonstop6h 30m

C$ 626

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Wed 8/4

5:55 a.m.-7:35 p.m.

1 stop18h 40m

Toronto Pearson Intl

Wed 22/4

9:15 p.m.-10:15 p.m.

1 stop20h 00m

C$ 630

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Thu 5/3

11:25 a.m.-6:23 p.m.

1 stop11h 58m

Ottawa

Fri 20/3

5:40 a.m.-9:30 a.m.

1 stop23h 50m

C$ 631

CorkToronto

ORK - YYZ

ORKYYZ

Cork

Thu 5/3

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

1 stop14h 40m

Toronto Pearson Intl

Mon 9/3

10:55 p.m.-3:00 p.m.

1 stop12h 05m

C$ 633

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Fri 17/4

8:45 a.m.-4:20 p.m.

1 stop12h 35m

Toronto Pearson Intl

Sat 25/4

9:15 p.m.-4:50 p.m.

1 stop14h 35m

C$ 633

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Tue 3/3

5:15 p.m.-3:40 p.m.

1 stop27h 25m

Toronto Pearson Intl

Mon 9/3

10:55 p.m.-3:45 p.m.

1 stop12h 50m

C$ 634

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Tue 10/2

5:55 a.m.-7:15 p.m.

1 stop18h 20m

Toronto Pearson Intl

Wed 18/2

10:55 p.m.-3:45 p.m.

1 stop11h 50m

C$ 634

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Fri 1/5

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

Nonstop7h 05m

Toronto Pearson Intl

Mon 4/5

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

1 stop19h 10m

C$ 641

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

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, March is the cheapest month in which you can book a flight from Ireland to Region of Ontario (average of C$ 356). Flying from Ireland to Region of Ontario in July is currently the most expensive (average of C$ 673). 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 29 January 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 29 January 2026.

The most flights from IE0 to CAON are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 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 29 January 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
7.7
Good
501 reviews
Check prices

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Overall

7.7

Food

6.8

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
7.7
Good
501 reviews
Air Transat
7.7
Good
501 reviews
Check prices

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Overall

7.7

Food

6.8

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
7.2
Good
1,443 reviews
Air Transat
7.7
Good
501 reviews
Check prices

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Overall

7.7

Food

6.8

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
3,253 reviews
Air Transat
7.7
Good
501 reviews
Check prices

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Overall

7.7

Food

6.8

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
10,667 reviews
Air Transat
7.7
Good
501 reviews
Check prices

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Overall

7.7

Food

6.8

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
7.1
Good
606 reviews
Air Transat
7.7
Good
501 reviews
Check prices

Boarding

7.9

Comfort

7.3

Crew

8.4

Entertainment

7.0

Overall

7.7

Food

6.8

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 05m. WestJet provides one of the quickest options available for as low as C$ 626. 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$ 181 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$ 303 and C$ 339, 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, March is the cheapest month in which you can book a flight from Ireland to Region of Ontario (average of C$ 356). Flying from Ireland to Region of Ontario in July is currently the most expensive (average of C$ 673). 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 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 29 January 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 506AverageC$ 679FlexibilityNo cancel feeOn-time60%
Search WestJet flights
IcelandairCheapestC$ 511AverageC$ 639FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air TransatCheapestC$ 542AverageC$ 752FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapestC$ 593AverageC$ 789FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapestC$ 627AverageC$ 876FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 696AverageC$ 997FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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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