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Cheap flights from Dublin to Ontario from £441

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ONT
30 Mar — 6 Apr1
1 adult

Cheap flight deals from Dublin to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 25 March 2025.

Round-trip from

£441

Popular in

July

Cheapest in

February

Average price

£495
Air France
  • Air France
  • 2/5-5/5
  • 3 total stops
  • 32h 11m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£87 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
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Find flight deals from Dublin to Ontario

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 25 March 2025.

Fri 2/511:10DUB - ONT
2 stops19h 33mMultiple Airlines
Mon 5/512:07ONT - DUB
1 stop12h 38mMultiple Airlines
Deal found 23/3£441
Fri 2/511:10DUB - ONT
2 stops19h 33mKLM
Mon 5/514:35ONT - DUB
2 stops18h 05mKLM
Deal found 23/3£445
Fri 2/512:40DUB - ONT
1 stop17h 30mIberia
Mon 5/510:51ONT - DUB
1 stop14h 54mIberia
Deal found 23/3£456
Thu 8/505:55DUB - ONT
2 stops24h 34mDelta
Thu 15/510:01ONT - DUB
2 stops18h 34mDelta
Deal found 24/3£461
Mon 7/409:50DUB - ONT
2 stops37h 27mUnited Airlines
Sun 13/406:00ONT - DUB
2 stops21h 10mUnited Airlines
Deal found 24/3£521
Fri 9/509:50DUB - ONT
2 stops37h 26mAir Canada
Fri 16/506:00ONT - DUB
2 stops41h 45mAir Canada
Deal found 25/3£524

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 25 March 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

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 2/5

11:10-22:43

2 stops19h 33m

Ontario

Mon 5/5

12:07-08:45

1 stop12h 38m

£441

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 2/5

11:10-22:43

2 stops19h 33m

Ontario

Mon 5/5

14:35-16:40

2 stops18h 05m

£445

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 2/5

12:40-22:10

1 stop17h 30m

Ontario

Mon 5/5

10:51-09:45

1 stop14h 54m

£456

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 8/5

05:55-22:29

2 stops24h 34m

Ontario

Thu 15/5

10:01-12:35

2 stops18h 34m

£461

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 7/4

09:50-15:17

2 stops37h 27m

Ontario

Sun 13/4

06:00-11:10

2 stops21h 10m

£521

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 9/5

09:50-15:16

2 stops37h 26m

Ontario

Fri 16/5

06:00-07:45

2 stops41h 45m

£524

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 28/5

11:00-22:29

1 stop19h 29m

£522

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 28/5

13:30-23:43

2 stops18h 13m

£548

DublinOntario

DUB - ONT

DUBONT

Dublin

Sat 31/5

11:30-21:11

1 stop17h 41m

£568

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 15/9

09:50-22:26

3 stops44h 36m

£838

Flights are sorted by cheapest return flights first.

Deals found on 24/3

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 Ontario?

Currently, March is the cheapest month in which you can book a flight from Dublin to Ontario (average of £516). Flying from Dublin to Ontario in August is currently the most expensive (average of £827). 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.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

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 25 March 2025.
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,890 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
JetBlue
7.3
Good
2,924 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
8,960 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 are the cheapest airlines flying from Dublin to Ontario round-trip?

    Cheapflights users have booked flights from Dublin to Ontario round-trip from £445. Other airlines that can offer you cheap pricing are Iberia, from £456, and Delta, from £461.

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

    £522 is the cheapest one-way deal found within the past few days, from KLM. You may also be able to find cheap deals on JetBlue and United Airlines, with prices starting from £568 and £838, respectively.

  • 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 Ontario?

    Currently, March is the cheapest month in which you can book a flight from Dublin to Ontario (average of £516). Flying from Dublin to Ontario in August is currently the most expensive (average of £827). 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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How does Cheapflights help users find flights from Dublin to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Dublin to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Dublin.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Dublin to Ontario, users can toggle the no change fees filter when performing a flight search.

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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