Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Ireland to Ontario from C$ 272

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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — YYZ
17 Apr — 24 Apr1
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 18 March 2026.

Tue 16/610:40 a.m.
DUB
-
YUL
1 stop12h 40m
WestJet
Mon 22/67:20 p.m.
YUL
-
DUB
1 stop9h 00m
WestJet
Deal found 18/3C$ 544
Fri 17/412:15 p.m.
DUB
-
YYZ
1 stop11h 55m
Icelandair
Tue 21/48:45 p.m.
YYZ
-
DUB
1 stop9h 20m
Icelandair
Deal found 14/3C$ 568
Sun 21/69:20 a.m.
DUB
-
YYZ
Nonstop7h 05m
Air Canada
Sun 28/65:30 p.m.
YYZ
-
DUB
1 stop9h 15m
Air Canada
Deal found 15/3C$ 581
Tue 3/1111:30 a.m.
DUB
-
YYZ
1 stop11h 45m
Icelandair
Tue 10/117:40 p.m.
YYZ
-
DUB
1 stop9h 35m
Icelandair
Deal found 16/3C$ 585
Thu 9/42:15 p.m.
DUB
-
YYZ
1 stop12h 50m
Icelandair
Fri 17/411:10 p.m.
YYZ
-
DUB
1 stop9h 05m
Icelandair
Deal found 16/3C$ 589
Wed 15/412:15 p.m.
DUB
-
YYZ
1 stop14h 50m
Icelandair
Mon 27/48:45 p.m.
YYZ
-
DUB
1 stop11h 30m
Icelandair
Deal found 17/3C$ 590
Thu 9/42:15 p.m.
DUB
-
YYZ
1 stop9h 55m
Icelandair
Wed 15/48:45 p.m.
YYZ
-
DUB
1 stop11h 30m
Icelandair
Deal found 14/3C$ 592
Tue 14/42:15 p.m.
DUB
-
YYZ
1 stop9h 55m
Icelandair
Tue 21/48:45 p.m.
YYZ
-
DUB
1 stop9h 20m
Icelandair
Deal found 17/3C$ 593
Wed 8/412:15 p.m.
DUB
-
YYZ
1 stop14h 50m
Icelandair
Mon 27/48:45 p.m.
YYZ
-
DUB
1 stop11h 30m
Icelandair
Deal found 14/3C$ 594
Mon 13/42:15 p.m.
DUB
-
YYZ
1 stop12h 50m
Icelandair
Mon 20/411:10 p.m.
YYZ
-
DUB
1 stop9h 05m
Icelandair
Deal found 14/3C$ 596
Thu 9/42:15 p.m.
DUB
-
YYZ
1 stop12h 50m
Icelandair
Thu 16/48:45 p.m.
YYZ
-
DUB
1 stop9h 20m
Icelandair
Deal found 13/3C$ 598
Tue 3/1111:30 a.m.
DUB
-
YYZ
1 stop11h 45m
Icelandair
Sun 8/117:40 p.m.
YYZ
-
DUB
1 stop9h 35m
Icelandair
Deal found 16/3C$ 600

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 18 March 2026.

Round-trip from

C$ 568

One-way from

C$ 272

Popular in

June

Cheapest in

November

Average price

C$ 744

Good round-trip deal

C$ 726 or less

Good one-way deal

C$ 400 or less
Icelandair
  • Icelandair
  • 17/4-21/4
  • 2 total stops
  • 21h 15m total
  • Ireland to Ontario
Search Deals
WestJet
  • WestJet
  • 27/4
  • 1 total stop
  • 12h 35m total
  • Ireland to Ontario
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (C$ 541 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease (C$ 173 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 18 March 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
Quickest round-trip

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Sat 23/5

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

Nonstop7h 05m

Toronto Pearson Intl

Sun 31/5

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

Nonstop6h 30m

C$ 700

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Thu 7/5

9:40 a.m.-5:35 p.m.

2 stops36h 55m

Ottawa

Fri 22/5

6:55 a.m.-8:20 a.m.

2 stops20h 25m

C$ 726

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Fri 8/5

10:40 a.m.-5:35 p.m.

1 stop11h 55m

Ottawa

Sun 24/5

6:55 a.m.-9:20 a.m.

1 stop21h 25m

C$ 741

ShannonToronto

SNN - YYZ

SNNYYZ

Shannon

Sat 2/5

12:00 p.m.-8:45 a.m.

2 stops25h 45m

Toronto Pearson Intl

Sat 9/5

5:30 p.m.-10:15 a.m.

1 stop11h 45m

C$ 756

DublinMontreal

DUB - YUL

DUBYUL

Dublin

Thu 11/6

10:40 a.m.-6:20 p.m.

1 stop12h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 14/6

6:45 a.m.-9:20 a.m.

1 stop21h 35m

C$ 763

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Wed 10/6

9:30 a.m.-11:29 p.m.

1 stop18h 59m

Toronto Pearson Intl

Tue 30/6

6:26 p.m.-11:50 a.m.

1 stop12h 24m

C$ 780

ShannonToronto

SNN - YYZ

SNNYYZ

Shannon

Sat 2/5

12:30 p.m.-12:26 p.m.

2 stops28h 56m

Toronto Pearson Intl

Sun 10/5

11:00 a.m.-10:15 a.m.

2 stops18h 15m

C$ 783

ShannonToronto

SNN - YYZ

SNNYYZ

Shannon

Thu 28/5

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

1 stop15h 07m

Toronto Pearson Intl

Mon 1/6

4:00 p.m.-7:30 a.m.

1 stop10h 30m

C$ 783

ShannonToronto

SNN - YYZ

SNNYYZ

Shannon

Sat 2/5

12:30 p.m.-11:49 a.m.

2 stops28h 19m

Toronto Pearson Intl

Sat 9/5

1:00 p.m.-10:15 a.m.

2 stops16h 15m

C$ 783

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Wed 29/4

9:40 a.m.-12:20 a.m.

2 stops19h 40m

Ottawa

Mon 4/5

6:55 a.m.-9:20 a.m.

1 stop21h 25m

C$ 783

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/3

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

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$ 359). Flying from Ireland to Region of Ontario in July is currently the most expensive (average of C$ 672). 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 18 March 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 18 March 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 (5 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 18 March 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
521 reviews
Check prices

Overall

7.7

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.0

Comfort

7.3

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
521 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Overall

7.7

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.0

Comfort

7.3

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
1,477 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Overall

7.7

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.0

Comfort

7.3

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
3,296 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Overall

7.7

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.0

Comfort

7.3

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
10,813 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Overall

7.7

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.0

Comfort

7.3

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
622 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Overall

7.7

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.0

Comfort

7.3

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 7h 05m. Lufthansa provides one of the quickest options available for as low as C$ 700. 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$ 183 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$ 302 and C$ 342, 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$ 359). Flying from Ireland to Region of Ontario in July is currently the most expensive (average of C$ 672). 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.
Charles de Gaulle to Pierre Elliott Trudeau Intl flights
Orly to Pierre Elliott Trudeau Intl flights
Heathrow to Pearson Intl flights
Heathrow to Vancouver Intl flights
Frankfurt to Vancouver Intl flights
Gatwick to Pearson Intl flights
Charles de Gaulle to Pearson Intl flights
Lyon to Pierre Elliott Trudeau Intl flights
Charles de Gaulle to Vancouver Intl flights
Gatwick to Vancouver Intl flights
Charles de Gaulle to Québec City flights
Beauvais-Tille to Pierre Elliott Trudeau Intl flights
Frankfurt to Pearson Intl flights
Toulouse to Pierre Elliott Trudeau Intl flights
Heathrow to Pierre Elliott Trudeau Intl flights
London City to Pearson Intl flights
Stansted to Pearson Intl flights
Frankfurt to Pierre Elliott Trudeau Intl flights
London City to Vancouver Intl flights
Charles de Gaulle to Toronto Island flights
Orly to Pearson Intl flights
Heathrow to Calgary flights
Frederic Chopin to Pearson Intl flights
Marseille to Pierre Elliott Trudeau Intl flights
Orly to Québec City flights
Vienna to Pearson Intl flights
Nice to Pierre Elliott Trudeau Intl flights
Nantes to Pierre Elliott Trudeau Intl flights
Amsterdam to Pearson Intl flights
Orly to Vancouver Intl flights
Luton to Pearson Intl flights
Geneva to Pierre Elliott Trudeau Intl flights
Manchester to Pearson Intl flights
Amsterdam to Vancouver Intl flights
Leonardo da Vinci/Fiumicino to Pearson Intl flights
Munich to Vancouver Intl flights
Frankfurt to Calgary flights
Munich to Pearson Intl flights
Duesseldorf Intl to Vancouver Intl flights
Gatwick to Pierre Elliott Trudeau Intl flights
Dublin to Pearson Intl flights
Vienna to Vancouver Intl flights
Copenhagen to Pearson Intl flights
Frederic Chopin to Vancouver Intl flights
Zurich to Pearson Intl flights

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 18 March 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 511AverageC$ 661FlexibilityNo cancel feeOn-time60%
Search WestJet flights
IcelandairCheapestC$ 516AverageC$ 589FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air TransatCheapestC$ 542AverageC$ 760FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapestC$ 611AverageC$ 830FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapestC$ 639AverageC$ 867FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 702AverageC$ 1,006FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
American AirlinesCheapestC$ 744AverageC$ 977FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.