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Cheap flights from Ontario to Ireland from C$ 265

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — DUB
2 Sep — 9 Sep1
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 3 August 2026.

Wed 30/96:20 p.m.
YYZ
-
DUB
1 stop9h 20m
WestJet
Thu 8/1010:00 a.m.
DUB
-
YYZ
1 stop12h 10m
WestJet
Deal found 31/7C$ 482
Thu 1/109:35 p.m.
YYZ
-
DUB
Nonstop6h 45m
WestJet
Sun 11/1010:40 a.m.
DUB
-
YYZ
Nonstop7h 40m
WestJet
Deal found 30/7C$ 483
Wed 30/99:35 p.m.
YYZ
-
DUB
Nonstop6h 45m
WestJet
Sun 11/1010:40 a.m.
DUB
-
YYZ
Nonstop7h 40m
WestJet
Deal found 30/7C$ 484
Wed 23/99:35 p.m.
YYZ
-
DUB
Nonstop6h 45m
WestJet
Sun 11/1010:40 a.m.
DUB
-
YYZ
Nonstop7h 40m
WestJet
Deal found 30/7C$ 486
Fri 2/1011:55 p.m.
YYZ
-
DUB
Nonstop6h 35m
Air Transat
Fri 9/101:15 p.m.
DUB
-
YYZ
Nonstop7h 35m
Air Transat
Deal found 30/7C$ 487
Thu 8/109:35 p.m.
YYZ
-
DUB
Nonstop6h 45m
WestJet
Thu 15/1010:00 a.m.
DUB
-
YYZ
1 stop12h 10m
WestJet
Deal found 31/7C$ 490
Fri 2/106:15 p.m.
YYZ
-
DUB
1 stop9h 05m
WestJet
Sun 11/1010:40 a.m.
DUB
-
YYZ
Nonstop7h 40m
WestJet
Deal found 30/7C$ 491
Fri 2/1010:10 p.m.
YYZ
-
DUB
Nonstop6h 50m
WestJet
Fri 16/1010:40 a.m.
DUB
-
YYZ
Nonstop7h 40m
WestJet
Deal found 1/8C$ 493
Fri 2/1011:55 p.m.
YYZ
-
DUB
Nonstop6h 35m
Air Transat
Sun 11/101:15 p.m.
DUB
-
YYZ
Nonstop7h 35m
Air Transat
Deal found 31/7C$ 494
Fri 2/1010:10 p.m.
YYZ
-
DUB
Nonstop6h 50m
WestJet
Sat 10/109:40 a.m.
DUB
-
YYZ
1 stop10h 20m
WestJet
Deal found 30/7C$ 496
Tue 15/93:10 p.m.
YUL
-
DUB
1 stop15h 20m
Air Transat
Wed 23/91:15 p.m.
DUB
-
YUL
1 stop11h 17m
Air Transat
Deal found 1/8C$ 696
Sat 26/95:00 p.m.
YUL
-
DUB
1 stop13h 30m
Air Transat
Fri 9/101:15 p.m.
DUB
-
YUL
1 stop11h 15m
Air Transat
Deal found 30/7C$ 698

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 3 August 2026.

Round-trip from

C$ 482

One-way from

C$ 265

Popular in

December

Cheapest in

January

Average price

C$ 759

Good round-trip deal

C$ 562 or less

Good one-way deal

C$ 377 or less
WestJet
  • WestJet
  • 30/9-8/10
  • 2 total stops
  • 21h 30m total
  • Ontario to Ireland
Search Deals
Air Transat
  • Air Transat
  • 3/10
  • Nonstop
  • 6h 35m 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$ 34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 3 August 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
Quickest round-trip

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Tue 6/10

11:55 p.m.-11:30 a.m.

Nonstop6h 35m

Dublin

Sun 11/10

1:15 p.m.-3:50 p.m.

Nonstop7h 35m

C$ 619

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Sat 19/9

11:55 p.m.-11:30 a.m.

Nonstop6h 35m

Dublin

Wed 23/9

1:15 p.m.-3:50 p.m.

Nonstop7h 35m

C$ 642

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Tue 22/9

12:15 p.m.-9:15 a.m.

1 stop16h 00m

Dublin

Tue 29/9

10:00 a.m.-5:20 p.m.

1 stop12h 20m

C$ 729

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Tue 29/9

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

1 stop23h 00m

Dublin

Sun 11/10

6:00 a.m.-3:50 p.m.

1 stop14h 50m

C$ 733

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Sat 26/9

2:30 p.m.-10:45 a.m.

2 stops15h 15m

Dublin

Fri 2/10

3:00 p.m.-11:39 p.m.

2 stops13h 39m

C$ 733

TorontoCork

YYZ - ORK

YYZORK

Toronto Pearson Intl

Thu 8/10

9:55 p.m.-4:35 p.m.

1 stop13h 40m

Cork

Thu 22/10

6:15 a.m.-7:55 p.m.

1 stop18h 40m

C$ 752

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Mon 5/10

2:24 p.m.-10:00 a.m.

2 stops14h 36m

Dublin

Sat 10/10

3:00 p.m.-5:38 p.m.

2 stops31h 38m

C$ 758

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Wed 21/10

6:28 p.m.-10:00 a.m.

1 stop10h 32m

Dublin

Mon 2/11

5:45 a.m.-10:56 p.m.

2 stops22h 11m

C$ 775

TorontoCork

YYZ - ORK

YYZORK

Toronto Pearson Intl

Fri 23/10

6:10 p.m.-2:25 p.m.

2 stops15h 15m

Cork

Tue 27/10

11:15 a.m.-8:15 p.m.

1 stop13h 00m

C$ 786

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Tue 8/9

10:00 p.m.-6:50 p.m.

1 stop15h 50m

Dublin

Tue 22/9

9:30 a.m.-11:26 p.m.

2 stops18h 56m

C$ 797

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/7

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, January is the cheapest month in which you can book a flight from Region of Ontario to Ireland (average of C$ 644). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 1,063). 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 3 August 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 3 August 2026.

The most flights from CAON to IE0 are scheduled on a Thursday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

How far ahead should I book a flight from Region of Ontario to Ireland?

The price you pay for your flight from Region of Ontario to Ireland may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 Air Transat (C$ 221), WestJet (C$ 229), and Porter Airlines (C$ 232).

  • 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, January is the cheapest month in which you can book a flight from Region of Ontario to Ireland (average of C$ 644). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 1,063). 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 3 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 284AverageC$ 717FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
WestJetCheapestC$ 490AverageC$ 731FlexibilityNo cancel feeOn-time60%
Search WestJet flights
IcelandairCheapestC$ 505AverageC$ 604FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapestC$ 561AverageC$ 688FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 563AverageC$ 794FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 583AverageC$ 817FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
LufthansaCheapestC$ 613AverageC$ 925FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 624AverageC$ 865FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 681AverageC$ 830FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapestC$ 721AverageC$ 859FlexibilityNo 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 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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