Find flights
When to book
FAQs

Cheap flights from Dublin to Ontario from £423

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/11. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ONT
30 marras — 7 joulu1
1 adult
1 adult, Economy, 0 bags

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 31 lokakuu 2025.

Round-trip from

£423

Popular in

July

Cheapest in

February

Average price

£460
14/11-18/11
  • 14/11-18/11
  • 3 total stops
  • 35h 14m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£81 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 31 lokakuu 2025.

pe 14/1111:30DUB - ONT
2 stops18h 59mMultiple Airlines
ti 18/1106:11ONT - DUB
2 stops18h 29mMultiple Airlines
Deal found 30/10£423
to 13/1105:55DUB - ONT
2 stops25h 00mDelta
ma 17/1107:05ONT - DUB
2 stops24h 40mDelta
Deal found 29/10£502
to 13/1105:55DUB - ONT
2 stops19h 14mKLM
ma 17/1107:05ONT - DUB
1 stop16h 40mKLM
Deal found 29/10£505
pe 14/1110:40DUB - ONT
1 stop19h 51mUnited Airlines
ti 18/1107:00ONT - DUB
1 stop17h 10mUnited Airlines
Deal found 30/10£511
to 13/1110:40DUB - ONT
1 stop19h 51mUnited Airlines
ma 17/1107:00ONT - DUB
1 stop17h 10mUnited Airlines
Deal found 29/10£512
pe 26/1210:40DUB - ONT
1 stop19h 45mUnited Airlines
la 17/105:05ONT - DUB
2 stops18h 25mUnited Airlines
Deal found 29/10£534
la 1/1105:55DUB - ONT
2 stops23h 46mDelta
su 9/1107:05ONT - DUB
1 stop16h 40mDelta
Deal found 29/10£579
la 6/1212:55DUB - ONT
1 stop17h 33mMultiple Airlines
to 25/1210:50ONT - DUB
1 stop12h 20mMultiple Airlines
Deal found 29/10£585
pe 5/1209:45DUB - ONT
1 stop17h 54mKLM
su 21/1211:10ONT - DUB
1 stop12h 35mKLM
Deal found 29/10£631
ma 3/1110:40DUB - ONT
1 stop15h 56mUnited Airlines
su 23/1107:00ONT - DUB
1 stop17h 10mUnited Airlines
Deal found 31/10£634
ti 4/1110:40DUB - ONT
1 stop15h 56mUnited Airlines
pe 7/1107:00ONT - DUB
1 stop17h 10mUnited Airlines
Deal found 30/10£637

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 31 lokakuu 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

pe 14/11

11:30-22:29

2 stops18h 59m

Ontario

ti 18/11

06:11-08:40

2 stops18h 29m

£423

DublinOntario

DUB - ONT

DUBONT

Dublin

su 9/11

12:55-22:15

1 stop17h 20m

Ontario

su 23/11

10:47-07:10

1 stop12h 23m

£467

DublinOntario

DUB - ONT

DUBONT

Dublin

to 13/11

05:55-22:55

2 stops25h 00m

Ontario

ma 17/11

07:05-15:45

2 stops24h 40m

£502

DublinOntario

DUB - ONT

DUBONT

Dublin

pe 14/11

10:40-22:31

1 stop19h 51m

Ontario

ti 18/11

07:00-08:10

1 stop17h 10m

£511

DublinOntario

DUB - ONT

DUBONT

Dublin

ke 12/11

09:45-19:42

1 stop17h 57m

Ontario

su 16/11

07:05-07:45

1 stop16h 40m

£512

DublinOntario

DUB - ONT

DUBONT

Dublin

to 13/11

10:40-22:31

1 stop19h 51m

Ontario

ma 17/11

07:00-08:10

1 stop17h 10m

£512

DublinOntario

DUB - ONT

DUBONT

Dublin

ke 25/2

09:30-21:59

2 stops20h 29m

Ontario

su 1/3

06:00-09:55

2 stops19h 55m

£512

DublinOntario

DUB - ONT

DUBONT

Dublin

ke 25/2

09:45-21:14

1 stop19h 29m

Ontario

su 1/3

06:45-07:45

2 stops17h 00m

£530

DublinOntario

DUB - ONT

DUBONT

Dublin

pe 26/12

10:40-22:25

1 stop19h 45m

Ontario

la 17/1

05:05-07:30

2 stops18h 25m

£534

DublinOntario

DUB - ONT

DUBONT

Dublin

su 14/12

12:55-22:15

1 stop17h 20m

Ontario

la 27/12

10:50-07:10

1 stop12h 20m

£585

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 23 results
1
2
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, February is the cheapest month in which you can book a flight from Dublin to Ontario (average of £331). Flying from Dublin to Ontario in July is currently the most expensive (average of £529). 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.

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.

  • How long is the flight from Dublin to Ontario?

    For as low as £512, Delta can have you in Ontario from Dublin in 17h 57m. The distance between Dublin and Ontario is about 5132 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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, February is the cheapest month in which you can book a flight from Dublin to Ontario (average of £331). Flying from Dublin to Ontario in July is currently the most expensive (average of £529). 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

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

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?

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.