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Cheap flights from Dublin to Ontario from £463

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ONT
26 Feb — 5 Mar1
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 21 February 2025.

Round-trip from

£463

Popular in

July

Cheapest in

February

Average price

£419
American Airlines
  • American Airlines
  • 1/5-8/5
  • 3 total stops
  • 52h 19m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£94 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 21 February 2025.

Thu 1/512:40DUB - ONT
2 stops17h 18mAmerican Airlines
Thu 8/514:44ONT - DUB
1 stop35h 01mAmerican Airlines
Deal found 20/2£463
Thu 13/312:00DUB - ONT
1 stop17h 43mKLM
Thu 27/307:00ONT - DUB
1 stop19h 45mKLM
Deal found 21/2£506
Thu 1/511:35DUB - ONT
2 stops17h 18mUnited Airlines
Mon 12/505:05ONT - DUB
2 stops22h 05mUnited Airlines
Deal found 20/2£529
Fri 28/206:00DUB - ONT
2 stops18h 28mDelta
Wed 5/313:10ONT - DUB
1 stop12h 35mDelta
Deal found 21/2£543
Thu 1/512:40DUB - ONT
1 stop17h 30mIberia
Mon 12/512:46ONT - DUB
1 stop12h 59mIberia
Deal found 20/2£548
Fri 28/205:00DUB - ONT
2 stops23h 52mMultiple Airlines
Wed 5/306:00ONT - DUB
3 stops27h 15mMultiple Airlines
Deal found 21/2£711

Find flights from Dublin to Ontario within your budget

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 21 February 2025.

Fly from

Dublin

Fly to

Ontario

Route

Depart

Return

Price

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 1/5

12:40-21:58

2 stops17h 18m

Ontario

Thu 8/5

14:44-09:45

1 stop35h 01m

£463

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 13/3

12:00-22:43

1 stop17h 43m

Ontario

Thu 27/3

07:00-09:45

1 stop19h 45m

£506

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 1/5

11:35-20:34

2 stops16h 59m

Ontario

Thu 8/5

05:05-11:10

2 stops22h 05m

£529

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 1/5

12:40-22:10

1 stop17h 30m

Ontario

Mon 12/5

12:46-09:45

1 stop12h 59m

£548

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 13/5

12:15-23:58

2 stops19h 43m

Ontario

Sat 24/5

11:51-11:05

2 stops15h 14m

£837

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 29/4

12:45-23:50

2 stops19h 05m

£478

DublinOntario

DUB - ONT

DUBONT

Dublin

Sat 31/5

11:45-21:22

1 stop17h 37m

£555

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 20/3

12:00-22:43

1 stop17h 43m

£578

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 28/3

12:00-11:36

1 stop30h 36m

£589

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 3/6

09:20-22:51

2 stops21h 31m

£835

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 11 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.

Travel insights for flights from Dublin to Ontario

Get recent, data-driven insights about flights from Dublin to Ontario including ideal travel times, pricing trends, and more.

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 21 February 2025.
Peruse reviews from past customers who have flown with Delta, KLM and JetBlue from Dublin to Ontario to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

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
8,213 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

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
1,331 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

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
7.4
Good
3,069 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

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
8,759 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

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

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

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 £463. Other airlines that can offer you cheap pricing are KLM, from £506, and United Airlines, from £529.

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

    £555 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on KLM and Delta, with prices starting from £578 and £589, 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?

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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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