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Cheap flights from Dublin to Ontario from £280

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ONT
29 Aug — 5 Sep1
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 30 July 2026.

Wed 2/909:50
DUB
-
ONT
2 stops21h 09m
Iberia
Sun 20/910:25
ONT
-
DUB
1 stop15h 20m
Iberia
Deal found 28/7£516
Thu 3/911:30
DUB
-
ONT
1 stop19h 08m
JetBlue
Mon 7/923:59
ONT
-
DUB
1 stop25h 01m
JetBlue
Deal found 28/7£520
Sat 3/1012:40
DUB
-
ONT
1 stop17h 57m
Iberia
Sat 24/1010:25
ONT
-
DUB
1 stop13h 50m
Iberia
Deal found 27/7£530
Sat 29/811:30
DUB
-
ONT
1 stop18h 29m
JetBlue
Sun 6/923:59
ONT
-
DUB
1 stop25h 01m
JetBlue
Deal found 27/7£536
Wed 2/913:45
DUB
-
ONT
2 stops17h 14m
American Airlines
Sun 20/908:25
ONT
-
DUB
2 stops17h 10m
American Airlines
Deal found 28/7£540
Tue 8/911:30
DUB
-
ONT
1 stop19h 07m
JetBlue
Tue 15/922:39
ONT
-
DUB
1 stop26h 21m
JetBlue
Deal found 25/7£584
Thu 27/811:30
DUB
-
ONT
1 stop19h 08m
JetBlue
Wed 9/922:39
ONT
-
DUB
1 stop26h 21m
JetBlue
Deal found 29/7£598
Sun 30/811:30
DUB
-
ONT
1 stop19h 14m
JetBlue
Sun 6/923:59
ONT
-
DUB
1 stop25h 01m
JetBlue
Deal found 25/7£605
Fri 28/811:30
DUB
-
ONT
1 stop19h 08m
JetBlue
Wed 9/922:39
ONT
-
DUB
1 stop26h 21m
JetBlue
Deal found 29/7£615
Thu 10/909:50
DUB
-
ONT
2 stops21h 46m
Iberia
Thu 17/908:25
ONT
-
DUB
1 stop17h 20m
Iberia
Deal found 27/7£615

Find 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 30 July 2026.

Round-trip from

£516

One-way from

£280

Popular in

July

Cheapest in

January

Average price

£756
Iberia
  • Iberia
  • 2/9-20/9
  • 3 total stops
  • 36h 29m total
  • Dublin to Ontario
Search Deals
JetBlue
  • JetBlue
  • 4/9
  • 1 total stop
  • 19h 08m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£96 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
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 30 July 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

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 3/9

11:30-22:38

1 stop19h 08m

Ontario

Mon 7/9

23:59-09:00

1 stop25h 01m

£520

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 8/9

05:55-22:04

2 stops24h 09m

Ontario

Tue 15/9

11:54-18:25

2 stops22h 31m

£633
Fastest return journey

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 8/9

05:55-17:19

2 stops19h 24m

Ontario

Tue 15/9

09:52-07:55

2 stops14h 03m

£635

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 10/9

05:55-16:35

2 stops18h 40m

Ontario

Thu 17/9

06:20-10:00

2 stops19h 40m

£635

DublinOntario

DUB - ONT

DUBONT

Dublin

Sat 9/1

11:30-22:39

2 stops19h 09m

Ontario

Fri 15/1

10:03-10:15

2 stops16h 12m

£707

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 18/12

11:30-23:56

2 stops20h 26m

Ontario

Thu 31/12

10:05-10:15

2 stops16h 10m

£920

DublinOntario

DUB - ONT

DUBONT

Dublin

Sat 12/12

11:30-22:39

2 stops19h 09m

Ontario

Sun 3/1

08:50-10:15

2 stops17h 25m

£971

DublinOntario

DUB - ONT

DUBONT

Dublin

Sun 13/12

09:40-18:31

1 stop16h 51m

Ontario

Sat 2/1

07:00-07:45

1 stop16h 45m

£1,140

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 27/8

14:15-23:24

2 stops17h 09m

Ontario

Thu 10/9

10:47-11:05

2 stops16h 18m

£1,237

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 27/8

14:15-23:24

2 stops17h 09m

Ontario

Wed 9/9

10:55-13:15

2 stops18h 20m

£1,842

Flights are sorted by cheapest return flights first.

Deals found on 26/7

Showing 1-10 of 22 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.

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 £520, JetBlue can have you in Ontario from Dublin in 19h 08m. 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.

See more FAQs

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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.

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