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Cheap flights from Dublin to Ontario from £253

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — YYZ
23 Nov — 30 Nov1
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 24 October 2025.

Wed 26/1109:00DUB - YYZ
Nonstop7h 15mAir Canada
Sun 30/1119:35YYZ - DUB
Nonstop6h 35mAir Canada
Deal found 22/10£318
Wed 12/1109:10DUB - YYZ
1 stop12h 05mLufthansa
Sun 16/1116:40YYZ - DUB
1 stop13h 20mLufthansa
Deal found 22/10£320
Wed 26/1109:10DUB - YYZ
1 stop12h 05mLufthansa
Sun 30/1119:35YYZ - DUB
Nonstop6h 35mLufthansa
Deal found 22/10£322
Thu 20/1111:30DUB - YYZ
1 stop11h 45mIcelandair
Mon 24/1119:40YYZ - DUB
1 stop9h 35mIcelandair
Deal found 23/10£324
Wed 24/1211:30DUB - YYZ
1 stop27h 46mAmerican Airlines
Sun 11/122:05YYZ - DUB
1 stop30h 45mAmerican Airlines
Deal found 23/10£327
Wed 19/1105:10DUB - YYZ
1 stop12h 55mLufthansa
Sun 23/1119:35YYZ - DUB
Nonstop6h 35mLufthansa
Deal found 23/10£328
Wed 12/1109:10DUB - YYZ
1 stop12h 05mMultiple Airlines
Sun 16/1113:00YYZ - DUB
2 stops18h 30mMultiple Airlines
Deal found 22/10£329
Mon 17/1109:10DUB - YYZ
1 stop12h 05mLufthansa
Mon 24/1119:45YYZ - DUB
1 stop16h 25mLufthansa
Deal found 23/10£331
Mon 17/1113:20DUB - YTZ
2 stops33h 35mSWISS
Mon 24/1112:30YTZ - DUB
2 stops18h 35mSWISS
Deal found 23/10£332
Wed 26/1109:00DUB - YYZ
Nonstop7h 15mAir Canada
Sat 29/1119:35YYZ - DUB
Nonstop6h 35mAir Canada
Deal found 22/10£334
Wed 12/1110:50DUB - YTZ
2 stops28h 05mMultiple Airlines
Sun 16/1108:30YTZ - DUB
2 stops23h 00mMultiple Airlines
Deal found 22/10£337
Wed 26/1113:35DUB - YTZ
2 stops25h 07mAir Canada
Sun 30/1108:30YTZ - DUB
2 stops18h 00mAir Canada
Deal found 22/10£385

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 24 October 2025.

Round-trip from

£303

One-way from

£253

Popular in

June

Cheapest in

February

Average price

£382

Good round-trip deal

£374 or less

Good one-way deal

£349 or less
Icelandair
  • Icelandair
  • 13/3-29/3
  • 2 total stops
  • 23h 10m total
  • Dublin to Ontario
Search Deals
Aer Lingus
  • Aer Lingus
  • 23/1
  • 1 total stop
  • 13h 10m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (£159 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (£50 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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 24 October 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

Fri 9/1

11:30-18:15

1 stop11h 45m

Toronto Pearson Intl

Mon 12/1

19:40-10:15

1 stop9h 35m

£326

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Mon 17/11

13:20-17:55

2 stops33h 35m

Toronto Island

Mon 24/11

12:30-12:05

2 stops18h 35m

£332

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Tue 18/11

12:55-17:55

2 stops34h 00m

Toronto Island

Mon 24/11

12:30-12:05

2 stops18h 35m

£332

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Sat 10/1

13:00-15:55

Nonstop7h 55m

Toronto Pearson Intl

Sat 17/1

17:25-05:15

Nonstop6h 50m

£335

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Wed 12/11

10:50-09:55

2 stops28h 05m

Toronto Island

Sun 16/11

08:30-12:30

2 stops23h 00m

£337

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Wed 14/1

15:05-16:25

2 stops30h 20m

Toronto Pearson Intl

Tue 20/1

14:00-12:00

2 stops17h 00m

£363

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Tue 23/12

11:30-18:00

1 stop11h 30m

Toronto Pearson Intl

Sun 11/1

19:40-10:15

1 stop9h 35m

£365

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Thu 12/2

06:00-15:40

2 stops14h 40m

Toronto Pearson Intl

Thu 26/2

13:00-07:45

2 stops13h 45m

£372

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Mon 8/12

08:50-15:40

1 stop11h 50m

Toronto Pearson Intl

Mon 15/12

21:15-16:20

2 stops14h 05m

£373

DublinToronto

DUB - YYZ

DUBYYZ

Dublin

Tue 11/11

08:50-19:15

1 stop15h 25m

Toronto Pearson Intl

Tue 18/11

12:15-07:50

2 stops14h 35m

£373

Flights are sorted by cheapest return flights first.

Deals found on 22/10

Showing 1-10 of 43 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 £169). Flying from Dublin to Region of Ontario in August is currently the most expensive (average of £346). 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 24 October 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.

How much does it cost for a return flight from Dublin to Region of Ontario?

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 24 October 2025.
Read reviews from past customers who have flown with Air Transat, Aer Lingus, andAir Canada 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
467 reviews
Check prices

Entertainment

7.1

Food

6.8

Comfort

7.4

Overall

7.8

Crew

8.5

Boarding

7.9

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
467 reviews
Air Transat
7.8
Good
467 reviews
Check prices

Entertainment

7.1

Food

6.8

Comfort

7.4

Overall

7.8

Crew

8.5

Boarding

7.9

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
1,352 reviews
Air Transat
7.8
Good
467 reviews
Check prices

Entertainment

7.1

Food

6.8

Comfort

7.4

Overall

7.8

Crew

8.5

Boarding

7.9

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
10,347 reviews
Air Transat
7.8
Good
467 reviews
Check prices

Entertainment

7.1

Food

6.8

Comfort

7.4

Overall

7.8

Crew

8.5

Boarding

7.9

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
7.1
Good
561 reviews
Air Transat
7.8
Good
467 reviews
Check prices

Entertainment

7.1

Food

6.8

Comfort

7.4

Overall

7.8

Crew

8.5

Boarding

7.9

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.
Lufthansa
6.8
Okay
7,514 reviews
Air Transat
7.8
Good
467 reviews
Check prices

Entertainment

7.1

Food

6.8

Comfort

7.4

Overall

7.8

Crew

8.5

Boarding

7.9

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 £335, Icelandair can have you in Region of Ontario from Dublin in 7h 55m. 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 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 WestJet (94%), Porter Airlines (81%) or Air Transat (81%) 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 £207. While the most popular route (Dublin - Toronto Pearson Intl) can be booked for £320 on average, our data indicates £784 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 £169). Flying from Dublin to Region of Ontario in August is currently the most expensive (average of £346). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 24 October 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£240Average£330FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
WestJetCheapest£273Average£382FlexibilityNo cancel feeOn-time60%
Search WestJet flights
LufthansaCheapest£279Average£409FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£295Average£375FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air TransatCheapest£300Average£440FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapest£317Average£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.

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

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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