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$ 344), Air Transat (C$ 445), and Air Canada (C$ 604).

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

Users have found that booking a flight from Region of Ontario to Ireland at least 56 days early can save you up to 27% on average compared to booking a flight this week. If booking 56 days before your flight isn’t an option for you, users have found flights from Region of Ontario to Ireland for as little as C$ 827 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 1,098 for flights departing within the next 3 days.

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

Flights from Region of Ontario to Ireland lean towards being more expensive in December. Prices are generally better when you fly from Region of Ontario to Ireland in November, with the cheapest ticket starting at C$ 395.

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$ 731+ Flights from Ontario to Ireland

Cheap flight deals from Ontario to Ireland

Round-trip from	C$ 553
One-way from	C$ 344
Popular in	December
Cheapest in	November
Average price	C$ 763
Good round-trip deal	C$ 603 or less
Good one-way deal	C$ 385 or less

WestJet
3/6-10/6
2 total stops
20h 30m total
Ontario to Ireland

Search Deals

WestJet
15/6
1 total stop
12h 55m total
Ontario to Ireland

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (C$ 21 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 27 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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

Find flight deals from Ontario to Ireland

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 22 April 2025.

Tue 7/1011:55 p.m.YYZ - DUB

Nonstop6h 35mAir Transat

Fri 17/101:15 p.m.DUB - YYZ

Nonstop7h 35mAir Transat

Deal found 22/4C$ 543

Sat 26/710:10 p.m.YYZ - DUB

Nonstop6h 50mWestJet

Thu 7/89:45 a.m.DUB - YYZ

1 stop12h 06mWestJet

Deal found 21/4C$ 549

Mon 9/611:55 p.m.YYZ - DUB

Nonstop6h 35mPorter Airlines

Tue 17/61:15 p.m.DUB - YYZ

Nonstop7h 35mPorter Airlines

Deal found 21/4C$ 568

Tue 30/98:50 p.m.YYZ - DUB

1 stop9h 15mIcelandair

Thu 9/102:15 p.m.DUB - YYZ

1 stop9h 55mIcelandair

Deal found 20/4C$ 633

Tue 10/612:55 p.m.YYZ - DUB

1 stop15h 05mMultiple Airlines

Wed 18/610:20 a.m.DUB - YYZ

1 stop11h 31mMultiple Airlines

Deal found 20/4C$ 634

Sun 7/912:25 p.m.YTZ - DUB

1 stop14h 20mAir Canada

Mon 15/99:20 a.m.DUB - YTZ

1 stop10h 25mAir Canada

Deal found 21/4C$ 670

Sun 7/94:30 p.m.YYZ - DUB

1 stop10h 15mLufthansa

Sat 27/99:50 a.m.DUB - YYZ

Nonstop7h 05mLufthansa

Deal found 21/4C$ 680

Fri 12/96:00 p.m.YYZ - DUB

1 stop8h 45mAir Canada

Sat 27/99:20 a.m.DUB - YYZ

1 stop10h 14mAir Canada

Deal found 22/4C$ 704

Sat 17/55:25 p.m.YYZ - DUB

Nonstop6h 30mAer Lingus

Mon 9/61:15 p.m.DUB - YYZ

Nonstop7h 25mAer Lingus

Deal found 21/4C$ 753

Mon 9/612:25 p.m.YTZ - DUB

2 stops18h 45mMultiple Airlines

Tue 17/69:20 a.m.DUB - YTZ

2 stops14h 17mMultiple Airlines

Deal found 21/4C$ 758

Sun 5/1010:05 a.m.YYZ - DUB

1 stop16h 05mUnited Airlines

Sun 12/1012:30 p.m.DUB - YYZ

1 stop11h 35mUnited Airlines

Deal found 21/4C$ 767

Tue 20/510:45 p.m.YYZ - SNN

1 stop16h 35mMultiple Airlines

Tue 27/512:45 p.m.SNN - YYZ

1 stop31h 55mMultiple Airlines

Deal found 22/4C$ 811

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 22 April 2025.

Tue 3/67:30 p.m.YYZ - DUB

1 stop8h 30mWestJet

Tue 10/610:10 a.m.DUB - YYZ

1 stop12h 00mWestJet

Deal found 22/4C$ 553

Thu 29/510:15 p.m.YYZ - DUB

1 stop12h 45mMultiple Airlines

Wed 11/610:20 a.m.DUB - YYZ

1 stop11h 31mMultiple Airlines

Deal found 22/4C$ 570

Mon 9/611:55 p.m.YYZ - DUB

Nonstop6h 35mAir Transat

Tue 17/61:15 p.m.DUB - YYZ

Nonstop7h 35mAir Transat

Deal found 22/4C$ 572

Mon 9/611:55 p.m.YYZ - DUB

Nonstop6h 35mPorter Airlines

Tue 17/61:15 p.m.DUB - YYZ

Nonstop7h 35mPorter Airlines

Deal found 22/4C$ 599

Sun 7/912:25 p.m.YTZ - DUB

1 stop14h 20mAir Canada

Mon 15/99:20 a.m.DUB - YTZ

1 stop10h 25mAir Canada

Deal found 21/4C$ 670

Mon 2/68:40 p.m.YYZ - DUB

Nonstop6h 35mLufthansa

Sat 7/69:20 a.m.DUB - YYZ

1 stop13h 38mLufthansa

Deal found 22/4C$ 741

Sat 17/55:25 p.m.YYZ - DUB

Nonstop6h 30mAer Lingus

Fri 6/61:15 p.m.DUB - YYZ

Nonstop7h 25mAer Lingus

Deal found 22/4C$ 755

Sun 5/106:15 p.m.YYZ - ORK

1 stop15h 25mKLM

Sun 19/105:10 p.m.ORK - YYZ

1 stop25h 10mKLM

Deal found 22/4C$ 868

Sat 30/85:25 p.m.YTZ - DUB

2 stops43h 25mSWISS

Wed 3/91:00 p.m.DUB - YTZ

2 stops33h 45mSWISS

Deal found 20/4C$ 874

Wed 7/510:10 p.m.YYZ - ORK

1 stop20h 20mDelta

Sun 18/56:00 a.m.ORK - YYZ

2 stops16h 25mDelta

Deal found 22/4C$ 914

Wed 7/56:33 a.m.YOW - DUB

2 stops19h 37mUnited Airlines

Thu 15/59:20 a.m.DUB - YOW

1 stop12h 23mUnited Airlines

Deal found 20/4C$ 952

Fri 30/57:29 a.m.YUL - DUB

2 stops16h 26mAmerican Airlines

Wed 18/69:30 a.m.DUB - YUL

1 stop10h 50mAmerican Airlines

Deal found 22/4C$ 1,099

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 22 April 2025.

Sat 5/79:15 p.m.YYZ - DUB

Nonstop6h 50mWestJet

Wed 16/711:30 a.m.DUB - YYZ

Nonstop7h 40mWestJet

Deal found 22/4C$ 554

Mon 9/611:55 p.m.YYZ - DUB

Nonstop6h 35mAir Transat

Tue 17/61:15 p.m.DUB - YYZ

Nonstop7h 35mAir Transat

Deal found 22/4C$ 572

Mon 9/611:55 p.m.YYZ - DUB

Nonstop6h 35mPorter Airlines

Tue 17/61:15 p.m.DUB - YYZ

Nonstop7h 35mPorter Airlines

Deal found 22/4C$ 599

Fri 6/68:40 p.m.YYZ - DUB

Nonstop6h 35mAir Canada

Fri 13/69:50 a.m.DUB - YYZ

Nonstop7h 05mAir Canada

Deal found 21/4C$ 733

Mon 2/68:40 p.m.YYZ - DUB

Nonstop6h 35mLufthansa

Wed 11/69:50 a.m.DUB - YYZ

Nonstop7h 05mLufthansa

Deal found 22/4C$ 742

Wed 28/55:25 p.m.YYZ - DUB

Nonstop6h 30mAer Lingus

Sat 14/61:15 p.m.DUB - YYZ

Nonstop7h 25mAer Lingus

Deal found 22/4C$ 749

Sun 8/68:40 p.m.YYZ - DUB

Nonstop6h 35mMultiple Airlines

Fri 20/69:50 a.m.DUB - YYZ

Nonstop7h 05mMultiple Airlines

Deal found 21/4C$ 871

Sun 1/68:40 p.m.YUL - DUB

Nonstop6h 05mAir Canada

Sat 7/69:20 a.m.DUB - YUL

Nonstop6h 30mAir Canada

Deal found 22/4C$ 876

Sun 8/68:40 p.m.YUL - DUB

Nonstop6h 05mLufthansa

Tue 24/69:20 a.m.DUB - YUL

Nonstop6h 30mLufthansa

Deal found 20/4C$ 944

Fri 6/65:20 p.m.YYZ - DUB

Nonstop6h 35mAmerican Airlines

Sat 21/61:15 p.m.DUB - YYZ

Nonstop7h 25mAmerican Airlines

Deal found 21/4C$ 973

Last-minute flights from Ontario to Ireland
Discover last-minute flight deals from Ontario to Ireland. Data last updated 22 April 2025 and is based on user searches.

Mon 28/44:20 p.m.YTZ - DUB

2 stops13h 00mAir Canada

Wed 21/511:35 a.m.DUB - YTZ

2 stops14h 02mAir Canada

Deal found 21/4C$ 847

Mon 28/410:10 p.m.YYZ - DUB

Nonstop6h 50mWestJet

Wed 21/510:20 a.m.DUB - YYZ

1 stop11h 31mWestJet

Deal found 22/4C$ 980

Mon 28/47:00 p.m.YUL - DUB

1 stop32h 15mDelta

Wed 21/511:10 a.m.DUB - YUL

1 stop10h 45mDelta

Deal found 22/4C$ 986

Tue 29/45:59 p.m.YYZ - DUB

1 stop10h 16mDelta

Fri 16/511:10 a.m.DUB - YYZ

1 stop13h 45mDelta

Deal found 22/4C$ 871

Tue 29/46:25 p.m.YUL - DUB

1 stop11h 45mMultiple Airlines

Fri 9/59:00 a.m.DUB - YUL

1 stop12h 00mMultiple Airlines

Deal found 21/4C$ 882

Tue 29/42:20 p.m.YUL - DUB

1 stop11h 50mAir Canada

Tue 13/59:50 a.m.DUB - YUL

1 stop10h 31mAir Canada

Deal found 21/4C$ 944

Tue 29/46:05 p.m.YYZ - DUB

1 stop12h 50mBritish Airways

Wed 14/510:55 a.m.DUB - YYZ

2 stops17h 20mBritish Airways

Deal found 22/4C$ 957

Tue 29/44:40 p.m.YUL - DUB

1 stop14h 30mSWISS

Fri 9/58:45 a.m.DUB - YUL

2 stops15h 36mSWISS

Deal found 21/4C$ 987

Thu 1/54:30 p.m.YYZ - DUB

1 stop12h 15mAir Canada

Mon 30/69:50 a.m.DUB - YYZ

Nonstop7h 05mAir Canada

Deal found 22/4C$ 870

Thu 1/58:00 p.m.YYZ - DUB

1 stop10h 10mMultiple Airlines

Thu 15/58:40 a.m.DUB - YYZ

1 stop12h 45mMultiple Airlines

Deal found 22/4C$ 901

Thu 1/512:05 p.m.YYZ - DUB

2 stops17h 15mUnited Airlines

Thu 15/511:35 a.m.DUB - YYZ

1 stop11h 57mUnited Airlines

Deal found 21/4C$ 922

Fri 2/55:25 p.m.YYZ - DUB

Nonstop6h 30mAer Lingus

Mon 12/51:15 p.m.DUB - YYZ

Nonstop7h 25mAer Lingus

Deal found 22/4C$ 894

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 22 April 2025.

Sun 15/62:30 p.m.YYZ - DUB

1 stop12h 55mWestJet

Deal found 22/4C$ 344

Thu 29/510:15 p.m.YYZ - DUB

2 stops16h 15mMultiple Airlines

Deal found 22/4C$ 361

Mon 23/611:15 a.m.YTZ - DUB

3 stops16h 20mMultiple Airlines

Deal found 22/4C$ 406

Tue 10/611:00 a.m.YUL - DUB

1 stop17h 00mMultiple Airlines

Deal found 22/4C$ 412

Tue 10/66:45 a.m.YUL - DUB

2 stops21h 15mWestJet

Deal found 21/4C$ 442

Thu 29/511:55 p.m.YYZ - DUB

Nonstop6h 35mAir Transat

Deal found 22/4C$ 445

Fri 6/68:30 p.m.YYZ - ORK

2 stops47h 45mMultiple Airlines

Deal found 22/4C$ 466

Sat 28/64:40 p.m.YOW - DUB

2 stops34h 45mMultiple Airlines

Deal found 21/4C$ 474

Mon 12/55:35 p.m.YYZ - SNN

2 stops18h 00mMultiple Airlines

Deal found 22/4C$ 521

Tue 14/106:00 a.m.YHM - DUB

1 stop23h 50mWestJet

Deal found 20/4C$ 539

Tue 5/85:55 a.m.YOW - DUB

2 stops22h 05mWestJet

Deal found 21/4C$ 546

Mon 18/82:55 p.m.YHM - DUB

3 stops37h 05mMultiple Airlines

Deal found 21/4C$ 589

Cheapflights Fare Finder

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

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Tue 7/10

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

Nonstop6h 35m

Dublin

Fri 17/10

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

Nonstop7h 35m

C$ 543

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Sat 26/7

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

Nonstop6h 50m

Dublin

Thu 7/8

9:45 a.m.-4:51 p.m.

1 stop12h 06m

C$ 549

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Mon 9/6

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

Nonstop6h 35m

Dublin

Tue 17/6

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

Nonstop7h 35m

C$ 568

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Tue 30/9

8:50 p.m.-11:05 a.m.

1 stop9h 15m

Dublin

Thu 9/10

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

1 stop9h 55m

C$ 633

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Tue 10/6

12:55 p.m.-9:00 a.m.

1 stop15h 05m

Dublin

Wed 18/6

10:20 a.m.-4:51 p.m.

1 stop11h 31m

C$ 634

TorontoDublin

YTZ - DUB

YTZDUB

Toronto Island

Sun 7/9

12:25 p.m.-7:45 a.m.

1 stop14h 20m

Dublin

Mon 15/9

9:20 a.m.-2:45 p.m.

1 stop10h 25m

C$ 670

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Sun 7/9

4:30 p.m.-7:45 a.m.

1 stop10h 15m

Dublin

Sat 27/9

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

Nonstop7h 05m

C$ 680

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Fri 12/9

6:00 p.m.-7:45 a.m.

1 stop8h 45m

Dublin

Sat 27/9

9:20 a.m.-2:34 p.m.

1 stop10h 14m

C$ 704

TorontoDublin

YYZ - DUB

YYZDUB

Toronto Pearson Intl

Sat 17/5

5:25 p.m.-4:55 a.m.

Nonstop6h 30m

Dublin

Mon 9/6

1:15 p.m.-3:40 p.m.

Nonstop7h 25m

C$ 753

TorontoDublin

YTZ - DUB

YTZDUB

Toronto Island

Mon 9/6

12:25 p.m.-12:10 p.m.

2 stops18h 45m

Dublin

Tue 17/6

9:20 a.m.-6:37 p.m.

2 stops14h 17m

C$ 758

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/4

Showing 1-10 of 60 results

...

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$ 458). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 760). 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 Tuesday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Ireland by month

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.

Temperature in Ireland by month

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).

Reviews of airlines servicing Ireland

Read through reviews of airlines operating flights from Ontario to Ireland, such as Delta, Porter Airlines and KLM. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

F.DAVID,Sep 2023

CDG - ATL

La attenzione in volo e sta gentilissima e il personale molto competente.

Delta

8.0

Very good

7,920 reviews

Delta

8.0

Very good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

F.DAVID,Sep 2023

CDG - ATL

La attenzione in volo e sta gentilissima e il personale molto competente.

Porter Airlines

8.0

Very good

284 reviews

Delta

8.0

Very good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

F.DAVID,Sep 2023

CDG - ATL

La attenzione in volo e sta gentilissima e il personale molto competente.

KLM

7.8

Good

1,331 reviews

Delta

8.0

Very good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

F.DAVID,Sep 2023

CDG - ATL

La attenzione in volo e sta gentilissima e il personale molto competente.

Air Transat

7.8

Good

385 reviews

Delta

8.0

Very good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

F.DAVID,Sep 2023

CDG - ATL

La attenzione in volo e sta gentilissima e il personale molto competente.

Austrian Airlines

7.6

Good

780 reviews

Delta

8.0

Very good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

F.DAVID,Sep 2023

CDG - ATL

La attenzione in volo e sta gentilissima e il personale molto competente.

Related info for your journey

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$ 344), Air Transat (C$ 445), and Air Canada (C$ 604).
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$ 458). Flying from Region of Ontario to Ireland in December is currently the most expensive (average of C$ 760). 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 for Ontario to Ireland

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Direct flights to

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Direct flights to Lisbon

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Direct flights to Lamezia Terme

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Direct flights to Bordeaux

Direct flights to Nantes

Top 10 airlines flying from Ontario to Ireland

Airline	Cheapest	Average	Flexibility	On-time
PLAY	CheapestC$ 326	AverageC$ 500	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Air Canada	CheapestC$ 426	AverageC$ 1,039	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Aer Lingus	CheapestC$ 426	AverageC$ 776	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Lufthansa	CheapestC$ 447	AverageC$ 993	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
WestJet	CheapestC$ 452	AverageC$ 762	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
British Airways	CheapestC$ 466	AverageC$ 865	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	CheapestC$ 501	AverageC$ 926	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Porter Airlines	CheapestC$ 522	AverageC$ 782	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Air Transat	CheapestC$ 536	AverageC$ 804	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Icelandair	CheapestC$ 572	AverageC$ 747	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights

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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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Cheap flights from Ontario to Ireland from C$ 343

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.

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 22 April 2025.

Round-trip from

One-way from

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Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find 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 22 April 2025.

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 22 April 2025.

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

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?

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 22 April 2025.

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 22 April 2025.

Rainfall in Ireland by month

Plan your trip to Ireland by taking into account the average rainfall totals by month.

Temperature in Ireland by month

Plan your trip to Ireland by taking into account the average temperature totals by month.

Reviews of airlines servicing Ireland

Read through reviews of airlines operating flights from Ontario to Ireland, such as Delta, Porter Airlines and KLM. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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.

Top 10 airlines flying from Ontario to Ireland

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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?

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?

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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 22 April 2025.