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Cheap flights from Dublin to Ontario from £155

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — YYZ
27 May — 3 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap 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 27 April 2026.

Wed 13/509:40
DUB
-
YYZ
1 stop12h 35m
WestJet
Tue 26/521:35
YYZ
-
DUB
Nonstop6h 45m
WestJet
Deal found 24/4£331
Mon 11/510:40
DUB
-
YYZ
Nonstop7h 40m
WestJet
Fri 22/523:05
YYZ
-
DUB
Nonstop6h 50m
WestJet
Deal found 23/4£337
Fri 15/510:40
DUB
-
YYZ
Nonstop7h 40m
WestJet
Wed 27/518:15
YYZ
-
DUB
1 stop9h 05m
WestJet
Deal found 24/4£338
Thu 4/610:40
DUB
-
YYZ
Nonstop7h 40m
WestJet
Tue 16/618:15
YYZ
-
DUB
1 stop9h 05m
WestJet
Deal found 23/4£340
Thu 18/610:40
DUB
-
YYZ
Nonstop7h 40m
WestJet
Mon 22/622:55
YYZ
-
DUB
Nonstop6h 50m
WestJet
Deal found 22/4£341
Wed 10/613:15
DUB
-
YYZ
Nonstop7h 35m
Multiple Airlines
Tue 16/618:15
YYZ
-
DUB
1 stop9h 05m
Multiple Airlines
Deal found 25/4£341
Mon 11/514:15
DUB
-
YYZ
1 stop9h 55m
Icelandair
Tue 19/520:45
YYZ
-
DUB
1 stop9h 20m
Icelandair
Deal found 26/4£342
Wed 13/510:40
DUB
-
YYZ
Nonstop7h 40m
WestJet
Wed 27/521:35
YYZ
-
DUB
Nonstop6h 45m
WestJet
Deal found 24/4£344
Sat 13/609:40
DUB
-
YYZ
1 stop12h 35m
Multiple Airlines
Sun 28/622:10
YYZ
-
DUB
1 stop20h 05m
Multiple Airlines
Deal found 24/4£347
Tue 19/512:15
DUB
-
YYZ
Nonstop7h 40m
WestJet
Tue 26/518:15
YYZ
-
DUB
1 stop9h 05m
WestJet
Deal found 24/4£353
Thu 21/509:40
DUB
-
YYZ
1 stop10h 20m
Multiple Airlines
Sun 31/521:55
YYZ
-
DUB
1 stop11h 40m
Multiple Airlines
Deal found 25/4£355
Tue 9/613:15
DUB
-
YYZ
Nonstop7h 35m
Multiple Airlines
Tue 16/607:35
YYZ
-
DUB
1 stop19h 45m
Multiple Airlines
Deal found 25/4£356

Find flight deals from Dublin to Ontario

Keep the following information in mind while searching for Dublin to Ontario flight deals. Data was last updated 27 April 2026.

Round-trip from

£331

One-way from

£155

Popular in

June

Cheapest in

November

Average price

£408

Good round-trip deal

£434 or less

Good one-way deal

£174 or less
WestJet
  • WestJet
  • 13/5-26/5
  • 1 total stop
  • 19h 20m total
  • Dublin to Ontario
Search Deals
WestJet
  • WestJet
  • 11/5
  • Nonstop
  • 7h 40m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (£158 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease (£51 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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 27 April 2026.
Use the filters below to find and compare flights from Dublin to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Mon 8/6

07:25-20:05

2 stops17h 40m

Ottawa

Mon 15/6

08:40-23:00

2 stops33h 20m

£406

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Wed 10/6

09:40-00:20

2 stops19h 40m

Ottawa

Wed 17/6

06:55-22:40

2 stops34h 45m

£411

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Wed 17/6

12:30-18:42

1 stop11h 12m

Toronto Island

Tue 30/6

14:55-10:40

1 stop14h 45m

£426

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Wed 17/6

12:30-18:42

1 stop11h 12m

Toronto Island

Sun 28/6

12:15-09:45

1 stop16h 30m

£426

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Wed 17/6

12:30-18:42

1 stop11h 12m

Toronto Island

Thu 25/6

14:55-10:40

1 stop14h 45m

£426

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Sun 21/6

08:50-09:34

2 stops29h 44m

Toronto Island

Sun 28/6

12:15-09:45

1 stop16h 30m

£427

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Sat 12/9

08:50-18:42

1 stop14h 52m

Toronto Island

Tue 22/9

12:15-07:30

2 stops14h 15m

£427

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Mon 8/6

09:40-00:20

2 stops19h 40m

Ottawa

Mon 15/6

18:25-09:20

1 stop9h 55m

£428

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Tue 15/9

08:50-18:42

1 stop14h 52m

Toronto Island

Tue 29/9

14:55-07:20

1 stop11h 25m

£428

DublinToronto

DUB - YTZ

DUBYTZ

Dublin

Wed 20/5

09:30-20:09

1 stop15h 39m

Toronto Island

Wed 27/5

18:10-11:10

1 stop12h 00m

£429

Flights are sorted by cheapest return flights first.

Deals found on 27/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Dublin to Region of Ontario?

To ensure you get the cheapest price possible for a flight from Dublin to Region of Ontario, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 £168). Flying from Dublin to Region of Ontario in August is currently the most expensive (average of £1,017). 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 27 April 2026.

When flying from Dublin to Region of Ontario, 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 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 27 April 2026.

The most flights from DUB to CAON 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 (3 on average).

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 27 April 2026.
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
542 reviews
Check prices

Crew

8.5

Boarding

7.9

Overall

7.8

Entertainment

7.1

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Transat
7.8
Good
542 reviews
Air Transat
7.8
Good
542 reviews
Check prices

Crew

8.5

Boarding

7.9

Overall

7.8

Entertainment

7.1

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Aer Lingus
7.3
Good
1,533 reviews
Air Transat
7.8
Good
542 reviews
Check prices

Crew

8.5

Boarding

7.9

Overall

7.8

Entertainment

7.1

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
WestJet
7.2
Good
3,327 reviews
Air Transat
7.8
Good
542 reviews
Check prices

Crew

8.5

Boarding

7.9

Overall

7.8

Entertainment

7.1

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Canada
7.1
Good
10,974 reviews
Air Transat
7.8
Good
542 reviews
Check prices

Crew

8.5

Boarding

7.9

Overall

7.8

Entertainment

7.1

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Icelandair
7.0
Good
642 reviews
Air Transat
7.8
Good
542 reviews
Check prices

Crew

8.5

Boarding

7.9

Overall

7.8

Entertainment

7.1

Comfort

7.3

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.

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 £426, United Airlines can have you in Region of Ontario from Dublin in 11h 12m. Dublin and Region of Ontario are separated by a distance of 3260 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 WestJet. According to our data, you can fly for as low as £85. Users have also found prices from £157 and £258 on Air Transat and Lufthansa, 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 - Ottawa.

  • 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 (80%), American Airlines (63%) or Aer Lingus (63%) 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 £155. While the most popular route (Dublin - Toronto Pearson Intl) can be booked for £341 on average, our data indicates £848 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 £168). Flying from Dublin to Region of Ontario in August is currently the most expensive (average of £1,017). 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 27 April 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£194Average£357FlexibilityNo cancel feeOn-time60%
Search WestJet flights
IcelandairCheapest£259Average£317FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air TransatCheapest£295Average£413FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapest£317Average£380FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£318Average£420FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£328Average£467FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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