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Cheap flights from Ontario to Ireland from C$ 316

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 13/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — DUB
22 Nov — 29 Nov1
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 23 October 2025.

Round-trip from

C$ 608

One-way from

C$ 316

Popular in

December

Cheapest in

November

Average price

C$ 676

Good round-trip deal

C$ 786 or less

Good one-way deal

C$ 315 or less
Lufthansa
  • Lufthansa
  • 3/3-9/3
  • Nonstop
  • 13h 50m total
  • Ontario to Ireland
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WestJet
  • WestJet
  • 13/4
  • Nonstop
  • 7h 00m total
  • Ontario to Ireland
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Highest demand for flights based on searches. 4% potential increase in price (C$ 48 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 35 potential savings vs. average RT price).
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Average for round-trip flights in October 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 23 October 2025.

Thu 13/117:35 p.m.YYZ - DUB
Nonstop6h 35mMultiple Airlines
Mon 17/119:00 a.m.DUB - YYZ
Nonstop7h 15mMultiple Airlines
Deal found 21/10C$ 609
Sat 22/117:35 p.m.YYZ - DUB
Nonstop6h 35mMultiple Airlines
Wed 3/129:00 a.m.DUB - YYZ
Nonstop7h 15mMultiple Airlines
Deal found 22/10C$ 612
Tue 2/125:25 p.m.YYZ - DUB
Nonstop6h 50mAer Lingus
Mon 8/121:00 p.m.DUB - YYZ
Nonstop7h 55mAer Lingus
Deal found 22/10C$ 613
Mon 1/125:25 p.m.YYZ - DUB
Nonstop6h 50mAer Lingus
Tue 9/121:00 p.m.DUB - YYZ
Nonstop7h 55mAer Lingus
Deal found 23/10C$ 615
Sat 15/117:35 p.m.YYZ - DUB
Nonstop6h 35mAir Canada
Sat 22/119:00 a.m.DUB - YYZ
Nonstop7h 15mAir Canada
Deal found 23/10C$ 616
Sat 15/117:35 p.m.YYZ - DUB
Nonstop6h 35mLufthansa
Sun 23/119:00 a.m.DUB - YYZ
Nonstop7h 15mLufthansa
Deal found 21/10C$ 617
Sat 22/117:35 p.m.YYZ - DUB
Nonstop6h 35mAir Canada
Fri 28/119:00 a.m.DUB - YYZ
Nonstop7h 15mAir Canada
Deal found 21/10C$ 619
Wed 19/118:30 p.m.YYZ - DUB
1 stop16h 15mMultiple Airlines
Wed 26/119:00 a.m.DUB - YYZ
Nonstop7h 15mMultiple Airlines
Deal found 21/10C$ 620
Tue 2/127:40 p.m.YYZ - DUB
1 stop9h 35mIcelandair
Mon 8/1211:30 a.m.DUB - YYZ
1 stop11h 45mIcelandair
Deal found 22/10C$ 622
Tue 11/117:35 p.m.YYZ - DUB
Nonstop6h 35mMultiple Airlines
Tue 18/1112:55 p.m.DUB - YYZ
2 stops34h 55mMultiple Airlines
Deal found 20/10C$ 623
Sat 15/117:35 p.m.YYZ - DUB
Nonstop6h 35mMultiple Airlines
Tue 18/1112:55 p.m.DUB - YYZ
2 stops34h 55mMultiple Airlines
Deal found 21/10C$ 624
Sat 22/1110:25 a.m.YTZ - DUB
2 stops16h 05mMultiple Airlines
Mon 24/1110:50 a.m.DUB - YTZ
2 stops15h 45mMultiple Airlines
Deal found 22/10C$ 673

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 23 October 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

Wed 8/4

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

Nonstop7h 00m

Dublin

Thu 16/4

11:30 a.m.-2:15 p.m.

Nonstop7h 45m

C$ 612

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Sat 21/3

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

Nonstop6h 35m

Dublin

Tue 31/3

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

Nonstop7h 05m

C$ 624

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Sat 28/2

10:05 p.m.-6:40 p.m.

1 stop15h 35m

Dublin

Sat 7/3

8:55 a.m.-9:59 p.m.

2 stops18h 04m

C$ 629

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Mon 20/4

5:40 a.m.-10:00 a.m.

1 stop23h 20m

Dublin

Wed 29/4

11:20 a.m.-12:22 a.m.

1 stop18h 02m

C$ 655

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Sun 16/11

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

Nonstop6h 35m

Dublin

Tue 2/12

9:10 a.m.-4:15 p.m.

1 stop12h 05m

C$ 661

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Sat 28/2

10:05 p.m.-3:00 p.m.

1 stop11h 55m

Dublin

Mon 2/3

5:55 p.m.-2:50 p.m.

1 stop25h 55m

C$ 668

TorontoDublin

YTZ - DUB

YTZDUB

Toronto Island

Sun 22/3

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

2 stops20h 00m

Dublin

Tue 31/3

10:40 a.m.-9:32 p.m.

2 stops15h 52m

C$ 676

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Fri 27/3

8:40 p.m.-12:15 p.m.

1 stop11h 35m

Dublin

Fri 3/4

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

1 stop15h 00m

C$ 679

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Fri 27/3

8:40 p.m.-12:15 p.m.

1 stop11h 35m

Dublin

Tue 7/4

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

1 stop9h 55m

C$ 679

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Wed 25/3

8:40 p.m.-10:15 a.m.

1 stop9h 35m

Dublin

Sun 5/4

12:15 p.m.-7:10 p.m.

1 stop11h 55m

C$ 679

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/10

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$ 522). 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 23 October 2025.

It’s optimal to fly from Region of Ontario to Ireland in the evening. By choosing this option you can save up to 18% 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.

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 United Airlines (C$ 427), Air Canada (C$ 431), and TAP AIR PORTUGAL (C$ 449).

  • 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$ 522). 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 23 October 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapestC$ 323AverageC$ 507FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
Porter AirlinesCheapestC$ 404AverageC$ 753FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 421AverageC$ 741FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Aer LingusCheapestC$ 451AverageC$ 815FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapestC$ 457AverageC$ 885FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air TransatCheapestC$ 534AverageC$ 785FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
IcelandairCheapestC$ 534AverageC$ 724FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air CanadaCheapestC$ 552AverageC$ 981FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
TAP AIR PORTUGALCheapestC$ 596AverageC$ 712FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
United AirlinesCheapestC$ 638AverageC$ 1,047FlexibilityNo 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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