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

Departing from Region of Ontario to Ireland will take you 9h 20m. 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$ 237), WestJet (C$ 253), and Porter Airlines (C$ 319).

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$ 247+ 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 13 October 2026.

Wed 11/117:40 p.m. -

1 stop9h 35m

Tue 24/1111:30 a.m. -

1 stop11h 45m

Deal found 13/10C$ 615

Fri 27/117:40 p.m. -

1 stop9h 35m

Tue 1/1211:30 a.m. -

1 stop11h 45m

Deal found 12/10C$ 621

Fri 4/125:10 p.m. -

1 stop20h 10m

Tue 12/112:30 p.m. -

1 stop32h 10m

Deal found 8/10C$ 635

Sun 15/117:40 p.m. -

1 stop9h 35m

Wed 25/1111:30 a.m. -

1 stop11h 45m

Deal found 12/10C$ 639

Thu 12/117:40 p.m. -

1 stop9h 35m

Tue 24/1111:30 a.m. -

1 stop11h 45m

Deal found 8/10C$ 643

Thu 26/117:40 p.m. -

1 stop9h 35m

Tue 1/1211:30 a.m. -

1 stop11h 45m

Deal found 9/10C$ 648

Fri 4/125:10 p.m. -

2 stops36h 25m

Tue 8/127:05 p.m. -

1 stop25h 35m

Deal found 9/10C$ 653

Sun 15/117:40 p.m. -

1 stop9h 35m

Thu 3/1211:30 a.m. -

1 stop11h 45m

Deal found 9/10C$ 655

Mon 23/112:45 p.m. -

2 stops16h 40m

Mon 30/116:45 p.m. -

2 stops31h 37m

Deal found 9/10C$ 695

Sun 22/115:50 p.m. -

2 stops17h 05m

Sun 29/116:50 p.m. -

2 stops28h 14m

Deal found 8/10C$ 738

Fri 20/115:50 p.m. -

2 stops19h 30m

Sun 29/116:50 p.m. -

2 stops28h 14m

Deal found 10/10C$ 835

Fri 20/112:45 p.m. -

2 stops22h 35m

Mon 30/116:45 p.m. -

2 stops28h 22m

Deal found 12/10C$ 843

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 13 October 2026.

Thu 22/108:45 p.m. -

1 stop9h 20m

Wed 4/1111:30 a.m. -

1 stop11h 45m

Deal found 12/10C$ 830

Fri 13/117:50 p.m. -

1 stop16h 20m

Thu 19/119:00 a.m. -

Nonstop7h 10m

Deal found 12/10C$ 836

Tue 3/115:10 p.m. -

2 stops13h 40m

Tue 10/1111:30 a.m. -

2 stops33h 10m

Deal found 9/10C$ 885

Tue 27/1010:00 a.m. -

2 stops17h 30m

Mon 2/111:35 p.m. -

1 stop14h 51m

Deal found 12/10C$ 895

Sun 8/1111:20 a.m. -

1 stop14h 50m

Sun 15/119:00 a.m. -

1 stop18h 36m

Deal found 11/10C$ 943

Mon 9/1111:20 a.m. -

2 stops18h 00m

Mon 16/119:00 a.m. -

1 stop12h 05m

Deal found 11/10C$ 993

Fri 27/115:20 p.m. -

2 stops17h 05m

Fri 4/125:30 p.m. -

2 stops27h 20m

Deal found 12/10C$ 1,020

Thu 3/1210:20 p.m. -

1 stop13h 25m

Wed 9/128:05 p.m. -

2 stops24h 45m

Deal found 12/10C$ 1,144

Fri 23/108:45 p.m. -

1 stop11h 30m

Wed 4/1111:30 a.m. -

1 stop11h 45m

Deal found 12/10C$ 830

Mon 2/113:35 p.m. -

2 stops13h 20m

Sat 7/111:35 p.m. -

2 stops15h 17m

Deal found 8/10C$ 896

Mon 26/102:57 p.m. -

2 stops15h 23m

Mon 2/111:35 p.m. -

1 stop14h 51m

Deal found 10/10C$ 896

Sun 14/210:35 a.m. -

1 stop15h 35m

Sun 21/29:00 a.m. -

1 stop14h 45m

Deal found 10/10C$ 1,000

Sun 24/15:20 p.m. -

2 stops12h 50m

Sat 30/14:05 p.m. -

2 stops28h 45m

Deal found 12/10C$ 1,047

Sun 29/1110:35 a.m. -

1 stop15h 35m

Thu 3/129:00 a.m. -

1 stop29h 55m

Deal found 12/10C$ 1,051

Sun 8/113:20 p.m. -

1 stop14h 00m

Mon 16/1112:05 p.m. -

1 stop11h 52m

Deal found 9/10C$ 909

Mon 23/119:35 p.m. -

1 stop20h 05m

Wed 9/129:40 p.m. -

2 stops22h 05m

Deal found 9/10C$ 1,043

Tue 17/116:05 p.m. -

1 stop12h 25m

Tue 24/117:50 a.m. -

1 stop17h 25m

Deal found 11/10C$ 1,153

Sat 28/115:20 p.m. -

2 stops12h 50m

Fri 4/125:30 p.m. -

2 stops27h 20m

Deal found 11/10C$ 1,049

Thu 5/113:10 p.m. -

1 stop11h 20m

Thu 12/119:00 a.m. -

2 stops28h 38m

Deal found 8/10C$ 1,057

Tue 20/103:15 p.m. -

1 stop11h 05m

Thu 5/1112:05 p.m. -

1 stop11h 52m

Deal found 8/10C$ 909

Wed 18/115:40 p.m. -

1 stop20h 45m

Mon 23/117:50 a.m. -

1 stop17h 25m

Deal found 11/10C$ 1,153

Mon 23/115:20 p.m. -

2 stops12h 50m

Wed 9/125:30 p.m. -

2 stops27h 20m

Deal found 9/10C$ 1,091

Thu 26/116:00 a.m. -

1 stop22h 55m

Thu 17/129:30 a.m. -

1 stop17h 26m

Deal found 10/10C$ 1,097

Sat 17/103:15 p.m. -

1 stop11h 05m

Thu 5/1112:05 p.m. -

1 stop11h 52m

Deal found 8/10C$ 909

Tue 3/115:30 p.m. -

2 stops23h 00m

Mon 30/115:45 a.m. -

2 stops18h 25m

Deal found 9/10C$ 1,103

Sat 14/116:05 p.m. -

1 stop20h 20m

Mon 23/118:05 p.m. -

1 stop24h 50m

Deal found 11/10C$ 1,177

Thu 22/103:15 p.m. -

1 stop14h 25m

Thu 29/1012:05 p.m. -

1 stop10h 52m

Deal found 8/10C$ 909

Thu 3/129:35 p.m. -

1 stop29h 40m

Wed 9/126:05 p.m. -

1 stop25h 55m

Deal found 12/10C$ 1,113

Mon 30/117:20 p.m. -

2 stops31h 10m

Sat 5/129:00 a.m. -

1 stop29h 55m

Deal found 11/10C$ 1,141

Fri 27/1112:10 p.m. -

1 stop12h 00m

Thu 7/11:05 p.m. -

1 stop11h 25m

Deal found 9/10C$ 1,150

Find flight deals from Ontario to Ireland

Round-trip from	C$ 615
One-way from	C$ 247
Popular in	December
Cheapest in	January
Average price	C$ 691
Good round-trip deal	C$ 920 or less
Good one-way deal	C$ 568 or less

Icelandair
11/11-24/11
2 total stops
21h 20m total
Ontario to Ireland

Search Deals

Air Transat
20/10-31/12
Nonstop
6h 35m total
Ontario to Ireland

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (C$ 89 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 40 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 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

TorontoShannon

YYZ Toronto Pearson Intl - SNN Shannon

YYZSNN

Toronto Pearson Intl

Tue 20/10

11:55 p.m.-9:30 a.m.

2 stops28h 35m

Shannon

Wed 31/12

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

Nonstop0h 00m

C$ 325

TorontoShannon

YYZ Toronto Pearson Intl - SNN Shannon

YYZSNN

Toronto Pearson Intl

Thu 22/10

11:55 p.m.-5:15 p.m.

2 stops12h 20m

Shannon

Wed 31/12

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

Nonstop0h 00m

C$ 378

TorontoDublin

YYZ Toronto Pearson Intl - DUB Dublin

YYZDUB

Toronto Pearson Intl

Sun 18/10

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

Nonstop6h 35m

Dublin

Wed 31/12

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

Nonstop0h 00m

C$ 439

TorontoShannon

YYZ Toronto Pearson Intl - SNN Shannon

YYZSNN

Toronto Pearson Intl

Tue 3/11

5:30 p.m.-9:30 p.m.

2 stops23h 00m

Shannon

Wed 31/12

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

Nonstop0h 00m

C$ 457

TorontoCork

YYZ Toronto Pearson Intl - ORK Cork

YYZORK

Toronto Pearson Intl

Mon 23/11

10:45 p.m.-8:20 p.m.

3 stops40h 35m

Cork

Wed 31/12

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

Nonstop0h 00m

C$ 457

TorontoCork

YYZ Toronto Pearson Intl - ORK Cork

YYZORK

Toronto Pearson Intl

Mon 30/11

10:45 p.m.-8:20 p.m.

3 stops40h 35m

Cork

Wed 31/12

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

Nonstop0h 00m

C$ 461

TorontoDublin

YTZ Toronto Island - DUB Dublin

YTZDUB

Toronto Island

Mon 16/11

5:50 p.m.-1:50 p.m.

2 stops15h 00m

Dublin

Wed 31/12

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

Nonstop0h 00m

C$ 461

TorontoShannon

YYZ Toronto Pearson Intl - SNN Shannon

YYZSNN

Toronto Pearson Intl

Mon 23/11

10:45 p.m.-1:40 p.m.

3 stops33h 55m

Shannon

Wed 31/12

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

Nonstop0h 00m

C$ 469

Quickest round-trip

TorontoDublin

YYZ Toronto Pearson Intl - DUB Dublin

YYZDUB

Toronto Pearson Intl

Wed 21/10

8:50 p.m.-8:15 a.m.

Nonstop6h 25m

Dublin

Wed 31/12

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

Nonstop0h 00m

C$ 477

TorontoShannon

YYZ Toronto Pearson Intl - SNN Shannon

YYZSNN

Toronto Pearson Intl

Wed 25/11

2:50 p.m.-1:50 p.m.

3 stops18h 00m

Shannon

Wed 31/12

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

Nonstop0h 00m

C$ 484

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/10

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-SNN

YYZ-DUB

YTZ-DUB

YOW-SNN

YYZ-ORK

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-SNN

YYZ-DUB

YTZ-DUB

YOW-SNN

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$ 688). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 1,119). 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 Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 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 9h 20m. 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$ 237), WestJet (C$ 253), and Porter Airlines (C$ 319).
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$ 688). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 1,119). 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 Istanbul flights

Vancouver Intl to Frankfurt flights

Pearson Intl to Gatwick flights

Pearson Intl to Charles de Gaulle flights

Vancouver Intl to Charles de Gaulle flights

Pearson Intl to London City flights

Pearson Intl to Lisbon flights

Pierre Elliott Trudeau Intl to Heathrow flights

Pearson Intl to Dublin flights

Pearson Intl to Stansted flights

Pierre Elliott Trudeau Intl to Orly flights

Toronto Island to Heathrow flights

Pearson Intl to Amsterdam flights

Vancouver Intl to Gatwick flights

Vancouver Intl to Istanbul flights

Pierre Elliott Trudeau Intl to Barcelona-El Prat flights

Pearson Intl to Leonardo da Vinci/Fiumicino flights

Pierre Elliott Trudeau Intl to Lisbon flights

Pierre Elliott Trudeau Intl to Leonardo da Vinci/Fiumicino flights

Pierre Elliott Trudeau Intl to Istanbul flights

Vancouver Intl to London City flights

Pearson Intl to Luton flights

Calgary to Heathrow flights

Pierre Elliott Trudeau Intl to Beauvais-Tille flights

Pearson Intl to Frankfurt flights

Pierre Elliott Trudeau Intl to Madrid flights

Vancouver Intl to Dublin flights

Pearson Intl to Orly flights

Toronto Island to Charles de Gaulle flights

Pierre Elliott Trudeau Intl to Frankfurt flights

Québec City to Charles de Gaulle flights

Pearson Intl to Barcelona-El Prat flights

Pierre Elliott Trudeau Intl to Málaga flights

Vancouver Intl to Stansted flights

Vancouver Intl to Barcelona-El Prat flights

Vancouver Intl to Orly flights

Pearson Intl to Sabiha Gokcen flights

Pierre Elliott Trudeau Intl to Bruxelles-National flights

Abbotsford to Heathrow flights

Toronto Island to Lisbon flights

Pierre Elliott Trudeau Intl to Lyon flights

Halifax to Heathrow flights

Pearson Intl to Zurich flights

Pierre Elliott Trudeau Intl to Toulouse flights

Toronto Island to Leonardo da Vinci/Fiumicino flights

Pearson Intl to Madrid flights

Québec City to Orly flights

Top 10 airlines flying from Ontario to Ireland

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	CheapestC$ 189	AverageC$ 774	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
WestJet	CheapestC$ 496	AverageC$ 742	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Icelandair	CheapestC$ 527	AverageC$ 661	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Porter Airlines	CheapestC$ 572	AverageC$ 803	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Air Transat	CheapestC$ 572	AverageC$ 781	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Lufthansa	CheapestC$ 617	AverageC$ 1,009	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Air Canada	CheapestC$ 637	AverageC$ 927	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
American Airlines	CheapestC$ 732	AverageC$ 979	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Iberia	CheapestC$ 746	AverageC$ 877	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
British Airways	CheapestC$ 753	AverageC$ 1,064	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$ 247

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 20/10. 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 13 October 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 13 October 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 13 October 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 13 October 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 13 October 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 13 October 2026.

Last-minute flights from Ontario to IrelandDiscover last-minute flight deals from Ontario to Ireland. Data last updated 13 October 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to Ireland. Data last updated 13 October 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 13 October 2026.

Search for one-way flight options from Ontario to Ireland. Find affordable one-way fares based on user searches. Data last updated 13 October 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 13 October 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 13 October 2026.

The most flights from CAON to IE0 are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 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 13 October 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 13 October 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 13 October 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 13 October 2026.

Last-minute flights from Ontario to Ireland
Discover last-minute flight deals from Ontario to Ireland. Data last updated 13 October 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 13 October 2026.