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Cheap flights from Ontario to Ireland from C$ 318

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 23/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — DUB
13 Dec — 20 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Ireland

Keep the following information in mind while searching for Ontario to Ireland flight deals. Data was last updated 13 November 2025.

Round-trip from

C$ 614

One-way from

C$ 373

Popular in

December

Cheapest in

October

Average price

C$ 730

Good round-trip deal

C$ 799 or less

Good one-way deal

C$ 503 or less
Aer Lingus
  • Aer Lingus
  • 11/1-20/1
  • Nonstop
  • 14h 45m total
  • Ontario to Ireland
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18/1
  • 18/1
  • 2 total stops
  • 59h 25m total
  • Ontario to Ireland
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Highest demand for flights based on searches. 7% potential increase in price (C$ 85 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Ontario to Ireland.
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Price to beat on a one-way flight from Ontario to Ireland.
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Find 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 13 November 2025.

Thu 20/117:35 p.m.YYZ - DUB
Nonstop6h 35mMultiple Airlines
Wed 26/116:35 p.m.DUB - YYZ
2 stops29h 15mMultiple Airlines
Deal found 12/11C$ 615
Wed 3/125:25 p.m.YYZ - DUB
Nonstop6h 50mAer Lingus
Wed 25/21:00 p.m.DUB - YYZ
Nonstop7h 55mAer Lingus
Deal found 12/11C$ 616
Wed 19/117:45 p.m.YYZ - DUB
1 stop16h 25mMultiple Airlines
Wed 26/119:00 a.m.DUB - YYZ
Nonstop7h 15mMultiple Airlines
Deal found 11/11C$ 633
Fri 28/117:35 p.m.YYZ - DUB
Nonstop6h 35mMultiple Airlines
Tue 2/125:00 a.m.DUB - YYZ
1 stop16h 15mMultiple Airlines
Deal found 12/11C$ 636
Fri 28/115:25 p.m.YYZ - DUB
Nonstop6h 50mAer Lingus
Fri 5/121:00 p.m.DUB - YYZ
Nonstop7h 55mAer Lingus
Deal found 12/11C$ 639
Tue 2/125:25 p.m.YYZ - DUB
Nonstop6h 50mAer Lingus
Fri 12/121:00 p.m.DUB - YYZ
Nonstop7h 55mAer Lingus
Deal found 11/11C$ 642
Wed 19/1112:30 p.m.YTZ - DUB
2 stops18h 35mSWISS
Wed 26/116:35 p.m.DUB - YTZ
2 stops28h 20mSWISS
Deal found 11/11C$ 689
Wed 26/1112:30 p.m.YTZ - DUB
2 stops24h 15mSWISS
Tue 2/1212:55 p.m.DUB - YTZ
2 stops34h 00mSWISS
Deal found 12/11C$ 691
Wed 3/1210:30 a.m.YTZ - DUB
2 stops16h 00mMultiple Airlines
Wed 25/25:10 a.m.DUB - YTZ
2 stops15h 45mMultiple Airlines
Deal found 12/11C$ 692
Thu 27/1110:30 a.m.YTZ - DUB
2 stops16h 00mAir Canada
Thu 4/129:30 a.m.DUB - YTZ
2 stops16h 58mAir Canada
Deal found 11/11C$ 698
Thu 20/118:50 a.m.YTZ - DUB
2 stops18h 20mAir Canada
Wed 26/111:35 p.m.DUB - YTZ
2 stops25h 07mAir Canada
Deal found 13/11C$ 702
Fri 28/1110:25 a.m.YTZ - DUB
2 stops16h 05mAir Canada
Fri 5/121:35 p.m.DUB - YTZ
2 stops25h 07mAir Canada
Deal found 12/11C$ 751

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 13 November 2025.
Use the filters below to find and compare flights from Ontario to Ireland that are best for you.

Fly from

Ontario

Fly to

Ireland

Route

Depart

Return

Price

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Thu 19/3

7:35 p.m.-6:10 a.m.

Nonstop6h 35m

Dublin

Sun 29/3

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

Nonstop7h 05m

C$ 618

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Sun 11/1

7:40 p.m.-10:15 a.m.

1 stop9h 35m

Dublin

Fri 16/1

11:30 a.m.-6:15 p.m.

1 stop11h 45m

C$ 621

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Wed 4/2

7:40 p.m.-10:15 a.m.

1 stop9h 35m

Dublin

Tue 17/2

11:30 a.m.-6:15 p.m.

1 stop11h 45m

C$ 622

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Tue 3/2

7:40 p.m.-10:15 a.m.

1 stop9h 35m

Dublin

Thu 19/2

11:30 a.m.-6:15 p.m.

1 stop11h 45m

C$ 622

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Mon 9/2

7:40 p.m.-10:15 a.m.

1 stop9h 35m

Dublin

Thu 19/2

11:30 a.m.-6:15 p.m.

1 stop11h 45m

C$ 622

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Fri 1/5

10:05 p.m.-9:55 a.m.

Nonstop6h 50m

Dublin

Mon 11/5

11:20 a.m.-1:55 p.m.

Nonstop7h 35m

C$ 637

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Thu 16/4

8:20 p.m.-4:55 p.m.

1 stop15h 35m

Dublin

Fri 24/4

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

Nonstop7h 05m

C$ 657

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Thu 7/5

11:20 a.m.-11:30 a.m.

1 stop19h 10m

Dublin

Mon 25/5

1:15 p.m.-12:21 a.m.

1 stop16h 06m

C$ 660

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Mon 11/5

6:45 a.m.-9:55 a.m.

1 stop22h 10m

Dublin

Mon 18/5

11:20 a.m.-12:40 a.m.

1 stop18h 20m

C$ 661

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Thu 7/5

5:05 p.m.-11:30 a.m.

1 stop13h 25m

Dublin

Sun 24/5

1:15 p.m.-8:01 p.m.

1 stop11h 46m

C$ 664

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 60 results
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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, February is the cheapest month in which you can book a flight from Region of Ontario to Ireland (average of C$ 298). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 528). 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 13 November 2025.

It’s optimal to fly from Region of Ontario to Ireland in the evening. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Region of Ontario to Ireland?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Ireland. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Region of Ontario to Ireland flight should consider departing on Tuesday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 13 November 2025.

The most flights from CAON to IE0 are scheduled on a Thursday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 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 6h 35m. 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 WestJet (C$ 318), TAP AIR PORTUGAL (C$ 424), and Air Canada (C$ 581).

  • 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, February is the cheapest month in which you can book a flight from Region of Ontario to Ireland (average of C$ 298). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 528). 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.
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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 13 November 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapestC$ 320AverageC$ 504FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
Porter AirlinesCheapestC$ 405AverageC$ 753FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 422AverageC$ 741FlexibilityNo cancel feeOn-time60%
Search WestJet flights
LufthansaCheapestC$ 463AverageC$ 882FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapestC$ 478AverageC$ 818FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapestC$ 528AverageC$ 723FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air TransatCheapestC$ 534AverageC$ 784FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 556AverageC$ 982FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
TAP AIR PORTUGALCheapestC$ 597AverageC$ 712FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
United AirlinesCheapestC$ 638AverageC$ 1,048FlexibilityNo cancel feeOn-time69%
Search United 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 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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