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

Cheapflights users have booked flights from Dublin to Ontario round-trip from £443. Other airlines that can offer you cheap pricing are United Airlines, from £455, and Delta, from £460.

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

£410 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on British Airways and KLM, with prices starting from £506 and £675, respectively.

What is the cheapest day to fly from Dublin to Ontario?

Travellers seeking maximum savings on their Dublin to Ontario flight should consider departing on Tuesday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How far in advance should I book a flight from Dublin to Ontario?

To save up to 39% on this flight, we recommend booking at least 28 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Dublin to Ontario from £446 1-2 weeks out and tickets from £625 for flights departing within the next 72 hours.

What is the cheapest month to fly from Dublin to Ontario?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to Ontario. Flights to Ontario from Dublin in February are about £515 on average during February, but can be found for as low as £331.

What is the cheapest time of day to fly from DUB to ONT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Ontario as you normally would.

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.

£410+ Flights from Dublin to Ontario

Cheap flight deals from Dublin to Ontario

Round-trip from	£443
One-way from	£410
Popular in	July
Cheapest in	February
Average price	£493

KLM
28/5-4/6
4 total stops
33h 19m total
Dublin to Ontario

Search Deals

JetBlue
5/5
1 total stop
17h 55m total
Dublin to Ontario

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£84 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 April 2025

Search Deals

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 14 April 2025.

Wed 28/511:10DUB - ONT

2 stops19h 25mKLM

Wed 4/610:01ONT - DUB

2 stops13h 54mKLM

Deal found 13/4£443

Thu 24/409:50DUB - ONT

2 stops18h 52mUnited Airlines

Fri 2/506:00ONT - DUB

2 stops20h 20mUnited Airlines

Deal found 14/4£455

Wed 28/505:55DUB - ONT

2 stops18h 22mDelta

Wed 4/610:01ONT - DUB

2 stops13h 54mDelta

Deal found 12/4£460

Tue 17/612:40DUB - ONT

1 stop14h 21mIberia

Tue 8/712:46ONT - DUB

1 stop12h 59mIberia

Deal found 13/4£532

Sat 31/508:35DUB - ONT

2 stops21h 22mBritish Airways

Tue 3/613:14ONT - DUB

2 stops22h 16mBritish Airways

Deal found 12/4£548

Wed 28/511:35DUB - ONT

1 stop18h 51mMultiple Airlines

Wed 4/607:00ONT - DUB

1 stop18h 45mMultiple Airlines

Deal found 12/4£568

Thu 3/709:50DUB - ONT

2 stops19h 04mAir Canada

Sat 12/705:05ONT - DUB

2 stops19h 10mAir Canada

Deal found 14/4£590

Sat 28/611:00DUB - ONT

1 stop16h 54mAir France

Sat 12/707:00ONT - DUB

1 stop17h 45mAir France

Deal found 14/4£888

Best flights from Dublin to Ontario
Discover carefully curated flight deals from Dublin to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 April 2025.

Wed 28/511:10DUB - ONT

2 stops19h 25mKLM

Wed 4/610:01ONT - DUB

2 stops13h 54mKLM

Deal found 13/4£443

Thu 24/409:50DUB - ONT

2 stops18h 52mUnited Airlines

Fri 2/506:00ONT - DUB

2 stops20h 20mUnited Airlines

Deal found 14/4£455

Wed 28/505:55DUB - ONT

2 stops18h 22mDelta

Wed 4/610:01ONT - DUB

2 stops13h 54mDelta

Deal found 12/4£460

Tue 17/612:40DUB - ONT

1 stop14h 21mIberia

Tue 8/712:46ONT - DUB

1 stop12h 59mIberia

Deal found 13/4£532

Sat 31/508:35DUB - ONT

2 stops21h 22mBritish Airways

Tue 3/613:14ONT - DUB

2 stops22h 16mBritish Airways

Deal found 12/4£548

Wed 28/511:35DUB - ONT

1 stop18h 51mMultiple Airlines

Wed 4/607:00ONT - DUB

1 stop18h 45mMultiple Airlines

Deal found 12/4£568

Thu 3/709:50DUB - ONT

2 stops19h 04mAir Canada

Sat 12/705:05ONT - DUB

2 stops19h 10mAir Canada

Deal found 14/4£590

Sat 28/611:00DUB - ONT

1 stop16h 54mAir France

Sat 12/707:00ONT - DUB

1 stop17h 45mAir France

Deal found 14/4£888

Last-minute flights from Dublin to Ontario
Discover last-minute flight deals from Dublin to Ontario. Data last updated 14 April 2025 and is based on user searches.

Mon 21/414:15DUB - ONT

2 stops17h 44mMultiple Airlines

Tue 6/511:46ONT - DUB

2 stops15h 19mMultiple Airlines

Deal found 13/4£769

Thu 24/409:50DUB - ONT

2 stops18h 52mUnited Airlines

Fri 2/506:00ONT - DUB

2 stops20h 20mUnited Airlines

Deal found 14/4£455

Thu 24/411:00DUB - ONT

1 stop16h 28mKLM

Thu 8/507:05ONT - DUB

1 stop17h 40mKLM

Deal found 13/4£652

Wed 30/412:40DUB - ONT

1 stop17h 30mIberia

Mon 19/510:51ONT - DUB

1 stop14h 54mIberia

Deal found 14/4£3,811

Wed 28/511:10DUB - ONT

2 stops19h 25mKLM

Wed 4/610:01ONT - DUB

2 stops13h 54mKLM

Deal found 13/4£443

Wed 28/505:55DUB - ONT

2 stops18h 22mDelta

Wed 4/610:01ONT - DUB

2 stops13h 54mDelta

Deal found 12/4£460

Wed 28/511:35DUB - ONT

1 stop18h 51mMultiple Airlines

Wed 4/607:00ONT - DUB

1 stop18h 45mMultiple Airlines

Deal found 12/4£568

Sat 31/508:35DUB - ONT

2 stops21h 22mBritish Airways

Tue 3/613:14ONT - DUB

2 stops22h 16mBritish Airways

Deal found 12/4£548

One-way flights from Dublin to Ontario
Search for one-way flight options from Dublin to Ontario. Find affordable one-way fares based on user searches. Data last updated 14 April 2025.

Mon 5/511:30DUB - ONT

1 stop17h 55mJetBlue

Deal found 14/4£410

Wed 21/512:45DUB - ONT

2 stops18h 58mMultiple Airlines

Deal found 13/4£498

Sun 18/510:30DUB - ONT

2 stops19h 27mBritish Airways

Deal found 13/4£506

Sat 2/811:00DUB - ONT

1 stop16h 29mKLM

Deal found 13/4£675

Tue 6/505:55DUB - ONT

2 stops18h 38mDelta

Deal found 14/4£678

Mon 8/909:20DUB - ONT

3 stops21h 33mUnited Airlines

Deal found 13/4£869

Cheapflights Fare Finder

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

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 28/5

11:10-22:35

2 stops19h 25m

Ontario

Wed 4/6

10:01-07:55

2 stops13h 54m

£443

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 24/4

09:50-20:42

2 stops18h 52m

Ontario

Fri 2/5

06:00-10:20

2 stops20h 20m

£455

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 28/5

05:55-16:17

2 stops18h 22m

Ontario

Wed 4/6

10:01-07:55

2 stops13h 54m

£460

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 17/6

12:40-19:01

1 stop14h 21m

Ontario

Tue 8/7

12:46-09:45

1 stop12h 59m

£532

DublinOntario

DUB - ONT

DUBONT

Dublin

Sat 31/5

08:35-21:57

2 stops21h 22m

Ontario

Tue 3/6

13:14-19:30

2 stops22h 16m

£548

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 28/5

11:35-22:26

1 stop18h 51m

Ontario

Wed 4/6

07:00-09:45

1 stop18h 45m

£568

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 3/7

09:50-20:54

2 stops19h 04m

Ontario

Sat 12/7

05:05-08:15

2 stops19h 10m

£590

DublinOntario

DUB - ONT

DUBONT

Dublin

Sat 28/6

11:00-19:54

1 stop16h 54m

Ontario

Sat 12/7

07:00-08:45

1 stop17h 45m

£888

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 5/5

11:30-21:25

1 stop17h 55m

£410

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 21/5

12:45-23:43

2 stops18h 58m

£498

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 14 results

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

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

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

Delta

8.0

Very Good

7,914 reviews

Check prices

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

7,914 reviews

Delta

8.0

Very Good

7,914 reviews

Check prices

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

1,323 reviews

Delta

8.0

Very Good

7,914 reviews

Check prices

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 France

7.5

Good

1,433 reviews

Delta

8.0

Very Good

7,914 reviews

Check prices

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

8,656 reviews

Delta

8.0

Very Good

7,914 reviews

Check prices

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

2,926 reviews

Delta

8.0

Very Good

7,914 reviews

Check prices

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

What are the cheapest airlines flying from Dublin to Ontario round-trip?
Cheapflights users have booked flights from Dublin to Ontario round-trip from £443. Other airlines that can offer you cheap pricing are United Airlines, from £455, and Delta, from £460.
What are the cheapest airlines to fly from Dublin to Ontario one-way?
£410 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on British Airways and KLM, with prices starting from £506 and £675, 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

Browse thousands of different options on Cheapflights for your next trip

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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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Cheap flights from Dublin to Ontario from £410

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dublin to Ontario

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dublin to Ontario

Cheapest flights from Dublin to OntarioExplore 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 14 April 2025.

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 14 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Dublin to Ontario that are best for you.

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.

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?

Rainfall in Ontario by month

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

Temperature in Ontario by month

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

Reviews of airlines servicing Ontario

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?

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

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

How can I find direct flights from Dublin to Ontario?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dublin to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

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?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 14 April 2025.