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Cheap flights from Dublin to Ontario from £341

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — YYZ
31 Dec — 7 Jan1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Dublin to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to Ontario
Explore the most affordable flight options available from Dublin to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 December 2025.

Tue 16/1212:05DUB - YYZ
2 stops14h 40mAir Canada
Tue 13/119:35YYZ - DUB
Nonstop6h 35mAir Canada
Deal found 29/11£424
Sun 14/1212:05DUB - YYZ
2 stops14h 40mAir Canada
Tue 13/119:35YYZ - DUB
Nonstop6h 35mAir Canada
Deal found 30/11£425
Sat 27/1210:40DUB - YYZ
1 stop28h 18mMultiple Airlines
Fri 6/212:00YYZ - DUB
2 stops19h 35mMultiple Airlines
Deal found 29/11£433
Wed 17/1213:35DUB - YTZ
2 stops30h 20mAir Canada
Sun 11/120:30YTZ - DUB
2 stops30h 00mAir Canada
Deal found 30/11£437
Wed 17/1212:05DUB - YTZ
2 stops26h 50mAir Canada
Sat 10/118:45YTZ - DUB
2 stops56h 25mAir Canada
Deal found 29/11£437
Wed 17/1213:35DUB - YYZ
1 stop10h 42mUnited Airlines
Tue 13/115:30YYZ - DUB
1 stop11h 40mUnited Airlines
Deal found 29/11£442
Sat 27/1210:40DUB - YYZ
1 stop18h 19mAir Canada
Fri 6/212:05YYZ - DUB
1 stop15h 05mAir Canada
Deal found 29/11£444
Sun 14/1211:30DUB - YYZ
2 stops16h 02mAmerican Airlines
Mon 12/122:05YYZ - DUB
1 stop12h 15mAmerican Airlines
Deal found 30/11£451
Sat 6/1208:50DUB - YYZ
1 stop11h 50mKLM
Tue 9/1217:50YYZ - DUB
1 stop17h 30mKLM
Deal found 29/11£452
Mon 15/1209:00DUB - YYZ
Nonstop7h 15mAir Canada
Sun 11/119:35YYZ - DUB
Nonstop6h 35mAir Canada
Deal found 29/11£457
Tue 23/1213:35DUB - YTZ
2 stops25h 20mAir Canada
Sun 11/120:30YTZ - DUB
2 stops30h 00mAir Canada
Deal found 29/11£459
Thu 18/1209:30DUB - YYZ
2 stops26h 01mUnited Airlines
Mon 12/110:00YYZ - DUB
2 stops16h 30mUnited Airlines
Deal found 30/11£465

Cheap flight deals from Dublin to Ontario

Keep the following information in mind while searching for Dublin to Ontario flight deals. Data was last updated 1 December 2025.

Round-trip from

£341

Popular in

June

Cheapest in

February

Average price

£527

Good round-trip deal

£427 or less

Good one-way deal

£497 or less
Aer Lingus
  • Aer Lingus
  • 15/1-29/1
  • Nonstop
  • 14h 45m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (£161 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (£51 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Dublin to Ontario.
Search Deals
Price to beat on a one-way flight from Dublin to Ontario.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to Ontario 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 858,174 searches. Data last updated 1 December 2025.
Use the filters below to find and compare flights from Dublin to Ontario that are best for you.

Fly from

Dublin

Fly to

Ontario

Route

Depart

Return

Price

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Thu 22/1

09:20-21:10

2 stops16h 50m

Toronto Pearson Intl

Mon 26/1

18:15-11:00

1 stop11h 45m

£379

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Fri 16/1

13:20-17:55

2 stops33h 35m

Toronto Island

Tue 20/1

12:30-12:00

2 stops18h 30m

£381

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Mon 2/2

13:20-17:55

2 stops33h 35m

Toronto Island

Mon 16/2

12:30-12:05

2 stops18h 35m

£381

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Fri 16/1

09:30-18:16

1 stop13h 46m

Toronto Pearson Intl

Fri 23/1

12:45-07:30

1 stop13h 45m

£383

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Fri 16/1

11:55-23:08

2 stops16h 13m

Ottawa

Mon 19/1

16:00-11:00

2 stops14h 00m

£409

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Wed 17/12

13:35-14:55

2 stops30h 20m

Toronto Island

Sun 11/1

20:30-07:30

2 stops30h 00m

£437

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Wed 17/12

12:05-09:55

2 stops26h 50m

Toronto Island

Mon 12/1

12:30-07:30

2 stops14h 00m

£437

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Tue 13/1

12:55-17:55

2 stops34h 00m

Toronto Island

Tue 20/1

12:30-12:00

2 stops18h 30m

£437

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Sun 14/12

12:05-21:28

2 stops14h 23m

Toronto Island

Mon 12/1

12:30-07:30

2 stops14h 00m

£437

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Wed 17/12

12:05-22:17

1 stop15h 12m

Toronto Pearson Intl

Sun 11/1

21:00-08:10

1 stop30h 10m

£443

Flights are sorted by cheapest return flights first.

Deals found on 30/11

Showing 1-10 of 50 results
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Best time to book a flight from Dublin to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Dublin with our price prediction graph.
Estimated return 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 Dublin to Ontario

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

Currently, May is the cheapest month in which you can book a flight from Dublin to Region of Ontario (average of £171). Flying from Dublin to Region of Ontario in August is currently the most expensive (average of £349). 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 DUB to ON?

Find hourly flight availability from Dublin to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 December 2025.

It’s optimal to fly from Dublin to Region of Ontario in the afternoon. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight in the morning.

Weekly flight availability from Dublin to Region of Ontario

Explore weekly flight availability from Dublin to Ontario. 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 1 December 2025.

The most flights from DUB to CAON are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 1 December 2025.
Read reviews from past customers who have flown with Air Transat, Aer Lingus, andWestJet from Dublin to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
479 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.9

Comfort

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Transat
7.8
Good
479 reviews
Air Transat
7.8
Good
479 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.9

Comfort

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Aer Lingus
7.2
Good
1,384 reviews
Air Transat
7.8
Good
479 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.9

Comfort

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
WestJet
7.2
Good
3,185 reviews
Air Transat
7.8
Good
479 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.9

Comfort

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Canada
7.1
Good
10,492 reviews
Air Transat
7.8
Good
479 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.9

Comfort

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Icelandair
7.0
Good
584 reviews
Air Transat
7.8
Good
479 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.9

Comfort

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Dublin to Ontario?

    Dublin (DUB) is the airport you will fly out of if you book a flight from Dublin to Ontario. It is only a 5.7 mi journey to Dublin (DUB) from Dublin’s city center.

  • How long is the flight from Dublin to Region of Ontario?

    For as low as £383, Lufthansa can have you in Region of Ontario from Dublin in 13h 46m. Dublin and Region of Ontario are separated by a distance of 3267 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as £343. Users have also found prices from £391 and £508 on Lufthansa and Air Canada, respectively.

  • What are the most popular routes from Dublin to Region of Ontario?

    The most popular flight routes from Dublin to Region of Ontario are Dublin - Toronto Pearson Intl, Dublin - Toronto Island and Dublin - Hamilton.

  • What are the most reliable airlines from Dublin to Region of Ontario?

    No one likes to see their flight delayed. When booking a flight from Dublin to Region of Ontario consider choosing Air Canada (91%), United Airlines (91%) or Lufthansa (91%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Dublin to Region of Ontario?

    Looking at all options, your cheapest flight can be booked for £277. While the most popular route (Dublin - Toronto Pearson Intl) can be booked for £319 on average, our data indicates £905 when flying from Dublin to Region of Ontario.

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

    Yes. In addition to deals on Dublin to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Ontario.

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

    Yes. Cheapflights offers flight deals from Dublin to Ontario 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 Dublin to Region of Ontario?

    Currently, May is the cheapest month in which you can book a flight from Dublin to Region of Ontario (average of £171). Flying from Dublin to Region of Ontario in August is currently the most expensive (average of £349). 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

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Top 6 airlines flying from Dublin to Ontario

Discover the top 6 airlines that operate flights from Dublin to Ontario. 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 858,174 searches. Data last updated 1 December 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£243Average£334FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
WestJetCheapest£275Average£387FlexibilityNo cancel feeOn-time60%
Search WestJet flights
LufthansaCheapest£294Average£405FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£296Average£379FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air TransatCheapest£303Average£447FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapest£322Average£479FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

Deals for Dublin to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Dublin to Ontario for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Ontario from Dublin? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Of course! You can now track prices for flights from Dublin to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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