How long is the flight from Region of Ontario to Ireland?

Departing from Region of Ontario to Ireland will take you 15h 30m. There are 5512 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$ 224), WestJet (C$ 250), and Porter Airlines (C$ 301).

In terms of precipitation, rainfall in Ireland ranges from 49.0 - 79.0 mm per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Ireland when rainfall is around 49.0 mm.

If weather is an important factor for your trip to Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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.

C$ 260+ Cheap Flights from Ontario to Ireland

Cheap flight deals from Ontario to Ireland

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 28 September 2026.

Fri 2/1011:55 p.m. -

Nonstop6h 35m

Fri 9/101:15 p.m. -

Nonstop7h 35m

Deal found 25/9C$ 547

Sat 3/1011:55 p.m. -

Nonstop6h 35m

Wed 14/101:15 p.m. -

Nonstop7h 35m

Deal found 24/9C$ 561

Sun 4/1011:55 p.m. -

Nonstop6h 35m

Wed 14/101:15 p.m. -

Nonstop7h 35m

Deal found 23/9C$ 592

Thu 1/1011:55 p.m. -

Nonstop6h 35m

Wed 14/101:15 p.m. -

Nonstop7h 35m

Deal found 24/9C$ 595

Thu 1/1011:55 p.m. -

Nonstop6h 35m

Wed 14/101:15 p.m. -

Nonstop7h 35m

Deal found 24/9C$ 601

Tue 29/911:55 p.m. -

Nonstop6h 35m

Wed 14/101:15 p.m. -

Nonstop7h 35m

Deal found 24/9C$ 607

Thu 3/127:40 p.m. -

1 stop9h 35m

Wed 9/1211:30 a.m. -

1 stop11h 45m

Deal found 27/9C$ 611

Thu 26/117:40 p.m. -

1 stop9h 35m

Tue 1/1211:30 a.m. -

1 stop11h 45m

Deal found 24/9C$ 614

Mon 9/115:50 p.m. -

2 stops15h 00m

Mon 16/116:45 p.m. -

2 stops28h 20m

Deal found 25/9C$ 710

Mon 9/119:45 a.m. -

2 stops20h 35m

Fri 13/1112:10 p.m. -

2 stops34h 41m

Deal found 24/9C$ 720

Wed 18/1110:45 a.m. -

2 stops19h 35m

Thu 26/1112:10 p.m. -

2 stops34h 41m

Deal found 27/9C$ 724

Sun 8/119:45 a.m. -

2 stops20h 35m

Fri 13/1112:10 p.m. -

2 stops34h 41m

Deal found 23/9C$ 727

Best flights from Ontario to Ireland
Discover carefully curated flight deals from Ontario to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Tue 17/1110:20 p.m. -

1 stop16h 25m

Mon 30/113:10 p.m. -

1 stop29h 45m

Deal found 23/9C$ 752

Sun 25/107:43 a.m. -

1 stop22h 12m

Sun 1/119:30 a.m. -

2 stops29h 17m

Deal found 27/9C$ 768

Sun 11/1011:45 a.m. -

1 stop15h 30m

Thu 15/109:50 a.m. -

1 stop18h 08m

Deal found 25/9C$ 831

Thu 22/105:15 a.m. -

2 stops45h 40m

Thu 29/108:00 a.m. -

1 stop12h 05m

Deal found 27/9C$ 850

Thu 15/1010:00 a.m. -

1 stop20h 30m

Wed 21/101:15 p.m. -

1 stop30h 40m

Deal found 23/9C$ 1,070

Sun 18/106:15 p.m. -

2 stops35h 35m

Sun 25/1010:40 a.m. -

1 stop18h 04m

Deal found 23/9C$ 1,126

Sat 9/110:20 p.m. -

1 stop32h 10m

Tue 8/61:45 p.m. -

2 stops26h 13m

Deal found 25/9C$ 1,147

Fri 27/115:20 p.m. -

2 stops17h 05m

Fri 4/125:30 p.m. -

2 stops27h 20m

Deal found 27/9C$ 1,167

Mon 9/115:55 p.m. -

1 stop11h 45m

Mon 16/115:30 p.m. -

1 stop30h 45m

Deal found 25/9C$ 1,169

Wed 4/115:55 p.m. -

1 stop17h 45m

Mon 9/115:40 a.m. -

1 stop15h 00m

Deal found 24/9C$ 1,172

Sat 14/114:20 p.m. -

1 stop10h 10m

Fri 20/111:35 p.m. -

1 stop12h 11m

Deal found 25/9C$ 769

Sun 1/116:55 p.m. -

1 stop32h 15m

Mon 9/1110:40 a.m. -

1 stop17h 43m

Deal found 24/9C$ 771

Sat 17/105:30 a.m. -

1 stop21h 45m

Wed 21/109:20 a.m. -

1 stop17h 37m

Deal found 25/9C$ 865

Thu 22/1010:05 a.m. -

1 stop17h 10m

Thu 29/108:00 a.m. -

1 stop29h 55m

Deal found 23/9C$ 872

Thu 5/114:20 p.m. -

2 stops13h 00m

Tue 10/1110:40 a.m. -

1 stop13h 30m

Deal found 23/9C$ 771

Sat 21/1110:20 p.m. -

1 stop31h 50m

Tue 1/124:05 p.m. -

1 stop28h 45m

Deal found 23/9C$ 957

Sat 17/1010:05 a.m. -

1 stop17h 10m

Wed 21/109:20 a.m. -

1 stop14h 22m

Deal found 25/9C$ 885

Wed 11/1110:35 a.m. -

1 stop15h 35m

Wed 18/119:10 a.m. -

2 stops29h 45m

Deal found 27/9C$ 925

Mon 26/104:20 p.m. -

2 stops14h 00m

Sun 1/119:30 a.m. -

2 stops19h 29m

Deal found 23/9C$ 772

Thu 26/115:40 p.m. -

1 stop22h 20m

Sat 5/124:05 p.m. -

1 stop28h 50m

Deal found 23/9C$ 957

Mon 12/108:15 p.m. -

2 stops30h 15m

Wed 28/101:35 p.m. -

2 stops14h 17m

Deal found 23/9C$ 772

Sat 9/110:20 p.m. -

1 stop32h 10m

Sat 5/61:45 p.m. -

2 stops30h 57m

Deal found 25/9C$ 1,147

Fri 16/1010:00 p.m. -

1 stop16h 50m

Fri 30/104:05 p.m. -

1 stop28h 50m

Deal found 23/9C$ 952

Wed 25/1110:20 p.m. -

1 stop20h 05m

Thu 3/125:30 p.m. -

1 stop27h 25m

Deal found 23/9C$ 957

Mon 18/13:35 p.m. -

1 stop11h 35m

Sat 23/19:30 a.m. -

2 stops15h 58m

Deal found 27/9C$ 773

Sun 29/1110:35 a.m. -

1 stop15h 35m

Thu 3/129:30 a.m. -

2 stops38h 15m

Deal found 27/9C$ 1,049

Mon 16/1112:44 p.m. -

2 stops12h 06m

Wed 25/112:00 p.m. -

2 stops25h 03m

Deal found 27/9C$ 1,158

Tue 24/1111:10 p.m. -

2 stops35h 15m

Mon 30/115:30 p.m. -

1 stop31h 45m

Deal found 23/9C$ 962

Mon 16/117:40 p.m. -

2 stops16h 05m

Wed 25/117:50 a.m. -

2 stops15h 25m

Deal found 27/9C$ 964

Sun 24/13:35 p.m. -

1 stop11h 35m

Sat 30/19:30 a.m. -

2 stops14h 12m

Deal found 25/9C$ 773

Find flight deals from Ontario to Ireland

Round-trip from	C$ 601
One-way from	C$ 260
Popular in	December
Cheapest in	January
Average price	C$ 689
Good round-trip deal	C$ 782 or less
Good one-way deal	C$ 570 or less

Icelandair
13/1-17/2
2 total stops
21h 20m total
Ontario to Ireland

Search Deals

WestJet
24/10-31/12
Nonstop
6h 45m total
Ontario to Ireland

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (C$ 83 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 36 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoCork

YYZ Toronto Pearson Intl - ORK Cork

YYZORK

Toronto Pearson Intl

Fri 9/10

6:20 p.m.-8:45 a.m.

2 stops33h 25m

Cork

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 438

TorontoDublin

YYZ Toronto Pearson Intl - DUB Dublin

YYZDUB

Toronto Pearson Intl

Sat 17/10

10:00 a.m.-10:50 a.m.

1 stop19h 50m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 451

TorontoDublin

YTZ Toronto Island - DUB Dublin

YTZDUB

Toronto Island

Sat 24/10

11:55 a.m.-10:50 a.m.

2 stops17h 55m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 457

TorontoDublin

YYZ Toronto Pearson Intl - DUB Dublin

YYZDUB

Toronto Pearson Intl

Sat 5/12

11:10 p.m.-6:15 p.m.

2 stops38h 05m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 458

TorontoCork

YYZ Toronto Pearson Intl - ORK Cork

YYZORK

Toronto Pearson Intl

Wed 4/11

2:50 p.m.-3:50 p.m.

3 stops20h 00m

Cork

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 471

TorontoCork

YYZ Toronto Pearson Intl - ORK Cork

YYZORK

Toronto Pearson Intl

Tue 10/11

5:30 p.m.-12:50 p.m.

2 stops14h 20m

Cork

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 478

OttawaDublin

YOW Ottawa - DUB Dublin

YOWDUB

Ottawa

Mon 9/11

6:10 a.m.-9:05 p.m.

2 stops33h 55m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 492

TorontoCork

YYZ Toronto Pearson Intl - ORK Cork

YYZORK

Toronto Pearson Intl

Sat 7/11

11:10 p.m.-8:45 p.m.

3 stops40h 35m

Cork

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 494

OttawaDublin

YOW Ottawa - DUB Dublin

YOWDUB

Ottawa

Tue 10/11

6:10 a.m.-8:25 a.m.

3 stops45h 15m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 498

OttawaDublin

YOW Ottawa - DUB Dublin

YOWDUB

Ottawa

Sun 8/11

6:55 p.m.-5:45 p.m.

2 stops41h 50m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 499

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

YYZ-DUB

YTZ-DUB

YYZ-ORK

YAM-DUB

YOW-DUB

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

CAON-IE0

YYZ-DUB

YTZ-DUB

YYZ-ORK

YAM-DUB

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$ 677). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 1,106). 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?

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

The most flights from CAON to IE0 are scheduled on a Thursday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (8 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 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

How long is the flight from Region of Ontario to Ireland?
Departing from Region of Ontario to Ireland will take you 15h 30m. There are 5512 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$ 224), WestJet (C$ 250), and Porter Airlines (C$ 301).
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$ 677). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 1,106). 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

Alternative routes

Complete your trip

Direct flights to

Flights by cabin class

Other flight options

Popular flights

Return Flight Options

Top destinations

Top regions

Alternative routes for Ontario to Ireland

Pierre Elliott Trudeau Intl to Charles de Gaulle flights

Pearson Intl to Heathrow flights

Vancouver Intl to Heathrow flights

Pearson Intl to Charles de Gaulle flights

Pearson Intl to Istanbul flights

Pearson Intl to Gatwick flights

Pierre Elliott Trudeau Intl to Lisbon flights

Pearson Intl to Lisbon flights

Pierre Elliott Trudeau Intl to Orly flights

Pierre Elliott Trudeau Intl to Beauvais-Tille flights

Vancouver Intl to Charles de Gaulle flights

Pearson Intl to Leonardo da Vinci/Fiumicino flights

Pierre Elliott Trudeau Intl to Istanbul flights

Pearson Intl to London City flights

Pearson Intl to Stansted flights

Pierre Elliott Trudeau Intl to Heathrow flights

Pierre Elliott Trudeau Intl to Bruxelles-National flights

Pearson Intl to Dublin flights

Toronto Island to Heathrow flights

Pearson Intl to Frankfurt flights

Pearson Intl to Orly flights

Vancouver Intl to Frankfurt flights

Pierre Elliott Trudeau Intl to Frankfurt flights

Pierre Elliott Trudeau Intl to Leonardo da Vinci/Fiumicino flights

Vancouver Intl to Gatwick flights

Pierre Elliott Trudeau Intl to Barcelona-El Prat flights

Toronto Island to Charles de Gaulle flights

Pearson Intl to Amsterdam flights

Pierre Elliott Trudeau Intl to Lyon flights

Toronto Island to Lisbon flights

Pearson Intl to Luton flights

Toronto Island to Frankfurt flights

Calgary to Heathrow flights

Vancouver Intl to London City flights

Pierre Elliott Trudeau Intl to Málaga flights

Pierre Elliott Trudeau Intl to Madrid flights

Vancouver Intl to Orly flights

Pearson Intl to Barcelona-El Prat flights

Québec City to Charles de Gaulle flights

Pearson Intl to Frederic Chopin flights

Vancouver Intl to Amsterdam flights

Vancouver Intl to Dublin flights

Vancouver Intl to Istanbul flights

Pearson Intl to Madrid flights

Toronto Island to Gatwick flights

Calgary to Frankfurt flights

Toronto Island to Leonardo da Vinci/Fiumicino flights

Vancouver Intl to Stansted flights

Pearson Intl to Sabiha Gokcen flights

Pierre Elliott Trudeau Intl to Malpensa flights

Top 10 airlines flying from Ontario to Ireland

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	CheapestC$ 195	AverageC$ 767	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
WestJet	CheapestC$ 492	AverageC$ 734	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Icelandair	CheapestC$ 509	AverageC$ 630	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Porter Airlines	CheapestC$ 567	AverageC$ 798	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Air Transat	CheapestC$ 569	AverageC$ 775	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Lufthansa	CheapestC$ 612	AverageC$ 995	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Air Canada	CheapestC$ 630	AverageC$ 919	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
American Airlines	CheapestC$ 726	AverageC$ 970	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Iberia	CheapestC$ 740	AverageC$ 869	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
British Airways	CheapestC$ 746	AverageC$ 1,054	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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.

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.

Cheap flights from Ontario to Ireland from C$ 260

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Ireland

Cheapest flights from Ontario to IrelandExplore 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 28 September 2026.

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 28 September 2026.

Best flights from Ontario to IrelandDiscover carefully curated flight deals from Ontario to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Discover carefully curated flight deals from Ontario to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Direct flights from Ontario to IrelandExplore direct flight options from Ontario to Ireland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 28 September 2026.

Explore direct flight options from Ontario to Ireland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 28 September 2026.

Last-minute flights from Ontario to IrelandDiscover last-minute flight deals from Ontario to Ireland. Data last updated 28 September 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to Ireland. Data last updated 28 September 2026 and is based on user searches.

One-way flights from Ontario to IrelandSearch for one-way flight options from Ontario to Ireland. Find affordable one-way fares based on user searches. Data last updated 28 September 2026.

Search for one-way flight options from Ontario to Ireland. Find affordable one-way fares based on user searches. Data last updated 28 September 2026.

Find flight deals from Ontario to Ireland

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

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 28 September 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 28 September 2026.

The most flights from CAON to IE0 are scheduled on a Thursday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (8 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 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

How long is the flight from Region of Ontario to Ireland?

What are the cheapest airlines to fly from Region of Ontario to Ireland one-way?

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

How can I find direct flights from Ontario to Ireland?

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

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

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 Ontario to Ireland

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Ireland by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Ontario to Ireland by cabin class

Find flights from Ontario to Ireland, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ontario and Ireland flights

Browse other Ontario and Ireland flight options. Last updated on 28 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from Ireland

Find the right flight back to Ontario after your stay in Ireland

Ontario to Ireland flights

Consider these flights travelling from Ontario to Ireland.

Fly to Ireland regions

Consider these flights travelling to Ireland regions.

Top 10 airlines flying from Ontario to Ireland

Fly with Cheapflights

How does Cheapflights help users find flights from Ontario to Ireland?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 28 September 2026.

Best flights from Ontario to Ireland
Discover carefully curated flight deals from Ontario to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Direct flights from Ontario to Ireland
Explore direct flight options from Ontario to Ireland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 28 September 2026.

Last-minute flights from Ontario to Ireland
Discover last-minute flight deals from Ontario to Ireland. Data last updated 28 September 2026 and is based on user searches.

One-way flights from Ontario to Ireland
Search for one-way flight options from Ontario to Ireland. Find affordable one-way fares based on user searches. Data last updated 28 September 2026.