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Cheap flights from Ontario to Ireland from C$ 322

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 25/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — DUB
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Ireland
Explore the most affordable flight options available from Ontario to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 March 2026.

Sun 24/511:00 a.m.
YUL
-
DUB
1 stop19h 30m
Air Transat
Wed 3/61:15 p.m.
DUB
-
YUL
1 stop16h 22m
Air Transat
Deal found 6/3C$ 582
Mon 7/96:45 a.m.
YUL
-
DUB
1 stop23h 45m
Air Transat
Fri 18/91:15 p.m.
DUB
-
YUL
1 stop32h 47m
Air Transat
Deal found 9/3C$ 584
Tue 22/93:10 p.m.
YUL
-
DUB
1 stop15h 20m
Air Transat
Wed 30/91:15 p.m.
DUB
-
YUL
1 stop16h 22m
Air Transat
Deal found 6/3C$ 585
Mon 1/63:10 p.m.
YUL
-
DUB
1 stop15h 20m
Air Transat
Mon 15/61:15 p.m.
DUB
-
YUL
1 stop16h 22m
Air Transat
Deal found 7/3C$ 587
Wed 20/510:05 p.m.
YYZ
-
DUB
1 stop19h 35m
Multiple Airlines
Thu 28/510:40 a.m.
DUB
-
YYZ
Nonstop7h 40m
Multiple Airlines
Deal found 5/3C$ 588
Wed 15/411:10 p.m.
YYZ
-
DUB
1 stop9h 05m
Icelandair
Fri 24/412:15 p.m.
DUB
-
YYZ
1 stop14h 50m
Icelandair
Deal found 8/3C$ 589
Sun 7/611:00 a.m.
YUL
-
DUB
1 stop19h 30m
Air Transat
Mon 15/61:15 p.m.
DUB
-
YUL
1 stop11h 17m
Air Transat
Deal found 9/3C$ 589
Mon 6/411:10 p.m.
YYZ
-
DUB
1 stop30h 55m
Icelandair
Wed 22/412:15 p.m.
DUB
-
YYZ
1 stop11h 55m
Icelandair
Deal found 8/3C$ 591
Sun 7/65:10 p.m.
YUL
-
DUB
1 stop13h 20m
Air Transat
Fri 19/61:15 p.m.
DUB
-
YUL
1 stop11h 15m
Air Transat
Deal found 9/3C$ 591
Mon 13/411:10 p.m.
YYZ
-
DUB
1 stop9h 05m
Icelandair
Sat 18/42:15 p.m.
DUB
-
YYZ
1 stop9h 55m
Icelandair
Deal found 10/3C$ 592
Thu 4/68:35 p.m.
YUL
-
DUB
1 stop9h 55m
Air Transat
Wed 17/61:15 p.m.
DUB
-
YUL
1 stop11h 17m
Air Transat
Deal found 9/3C$ 592
Mon 6/411:10 p.m.
YYZ
-
DUB
1 stop30h 55m
Icelandair
Mon 13/42:15 p.m.
DUB
-
YYZ
1 stop9h 55m
Icelandair
Deal found 9/3C$ 593

Find flight deals from Ontario to Ireland

Keep the following information in mind while searching for Ontario to Ireland flight deals. Data was last updated 10 March 2026.

Round-trip from

C$ 582

One-way from

C$ 322

Popular in

December

Cheapest in

October

Average price

C$ 732

Good round-trip deal

C$ 649 or less

Good one-way deal

C$ 423 or less
Air Transat
  • Air Transat
  • 24/5-3/6
  • 2 total stops
  • 35h 52m total
  • Ontario to Ireland
Search Deals
25/5
  • 25/5
  • 1 total stop
  • 21h 05m total
  • Ontario to Ireland
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 33 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 Ontario to Ireland.
Search Deals
Price to beat on a one-way flight from Ontario to Ireland.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Ireland 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 10 March 2026.
Use the filters below to find and compare flights from Ontario to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Thu 4/6

3:10 p.m.-11:30 a.m.

1 stop15h 20m

Dublin

Thu 18/6

1:15 p.m.-12:37 a.m.

1 stop16h 22m

C$ 597

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Fri 5/6

8:45 p.m.-1:15 p.m.

1 stop11h 30m

Dublin

Thu 11/6

2:15 p.m.-10:05 p.m.

1 stop12h 50m

C$ 619

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Wed 1/4

11:10 p.m.-11:05 a.m.

1 stop30h 55m

Dublin

Tue 14/4

2:15 p.m.-7:10 p.m.

1 stop9h 55m

C$ 627

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sun 24/5

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

1 stop19h 30m

Dublin

Thu 11/6

1:15 p.m.-12:37 a.m.

1 stop16h 22m

C$ 672

TorontoDublin

YTZ - DUB

YTZDUB

Toronto Island

Sun 7/6

6:30 p.m.-7:45 a.m.

1 stop8h 15m

Dublin

Sun 14/6

8:50 a.m.-6:42 p.m.

1 stop14h 52m

C$ 722

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Sun 24/5

6:25 p.m.-9:20 a.m.

1 stop9h 55m

Dublin

Thu 28/5

10:40 a.m.-12:20 a.m.

1 stop18h 40m

C$ 730

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Sun 7/6

6:00 a.m.-9:15 a.m.

1 stop22h 15m

Dublin

Mon 29/6

1:15 p.m.-11:13 a.m.

1 stop26h 58m

C$ 732

TorontoShannon

YYZ - SNN

YYZSNN

Toronto Pearson Intl

Mon 8/6

10:20 a.m.-11:10 a.m.

1 stop19h 50m

Shannon

Wed 17/6

1:05 p.m.-8:30 p.m.

1 stop12h 25m

C$ 735

TorontoShannon

YYZ - SNN

YYZSNN

Toronto Pearson Intl

Sun 7/6

2:10 p.m.-11:10 a.m.

1 stop16h 00m

Shannon

Sun 14/6

1:05 p.m.-11:22 p.m.

1 stop15h 17m

C$ 735

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Mon 1/6

6:37 p.m.-10:00 a.m.

1 stop10h 23m

Dublin

Mon 8/6

10:00 a.m.-5:23 p.m.

1 stop12h 23m

C$ 737

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Ontario 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 Ontario to Ireland

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

Currently, April is the cheapest month in which you can book a flight from Region of Ontario to Ireland (average of C$ 383). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 604). 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 ON to IE?

Find hourly flight availability from Ontario to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 March 2026.

When flying from Region of Ontario to Ireland, 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 Region of Ontario to Ireland

Explore weekly flight availability from Ontario to Ireland. 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 10 March 2026.

The most flights from CAON to IE0 are scheduled on a Friday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

Related info for your journey

Find useful and relevant information for your journey from Ontario to Ireland. 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 Region of Ontario to Ireland?

    Departing from Region of Ontario to Ireland will take you 11h 30m. There are 5258 km between Region of Ontario and Ireland. 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 Region of Ontario to Ireland one-way?

    The cheapest airlines for a one-way flight from Region of Ontario to Ireland are Air Transat (C$ 213), WestJet (C$ 215), and Porter Airlines (C$ 224).

  • Can I find deals for flights from Ontario to Ireland that include hotel bookings?

    Yes. In addition to deals on Ontario to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Ireland.

  • Can I find deals for business class flights from Ontario to Ireland?

    Yes. Cheapflights offers flight deals from Ontario to Ireland 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 Region of Ontario to Ireland?

    Currently, April is the cheapest month in which you can book a flight from Region of Ontario to Ireland (average of C$ 383). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 604). 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 Ontario to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Charles de Gaulle flights
Pearson Intl to Heathrow flights
Pearson Intl to Gatwick flights
Vancouver Intl to Heathrow flights
Pearson Intl to Leonardo da Vinci/Fiumicino flights
Pierre Elliott Trudeau Intl to Lisbon flights
Pearson Intl to Charles de Gaulle flights
Pierre Elliott Trudeau Intl to Leonardo da Vinci/Fiumicino flights
Pearson Intl to Lisbon flights
Pearson Intl to Athens flights
Pierre Elliott Trudeau Intl to Athens flights
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Pearson Intl to Madrid flights
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Pierre Elliott Trudeau Intl to Malpensa flights
Toronto Island to Athens flights
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Vancouver Intl to Leonardo da Vinci/Fiumicino flights
Vancouver Intl to Dublin flights

Top 10 airlines flying from Ontario to Ireland

Discover the top 10 airlines that operate flights from Ontario to Ireland. 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 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapestC$ 380AverageC$ 480FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
Porter AirlinesCheapestC$ 392AverageC$ 717FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 406AverageC$ 666FlexibilityNo cancel feeOn-time60%
Search WestJet flights
IcelandairCheapestC$ 505AverageC$ 598FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air TransatCheapestC$ 515AverageC$ 758FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapestC$ 536AverageC$ 848FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapestC$ 578AverageC$ 690FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
LufthansaCheapestC$ 594AverageC$ 843FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 597AverageC$ 919FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 658AverageC$ 777FlexibilityNo cancel feeOn-time70%
Search British Airways 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 Ontario to Ireland?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ireland from Ontario today with Cheapflights!

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

Cheapflights helps you find that perfect flight to Ireland from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Ireland from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ireland from Ontario today and book when prices fit your budget.

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