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Cheap flights from Dublin to Ontario from £287

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ONT
19 Jul — 26 Jul1
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 19 June 2026.

Thu 20/811:30
DUB
-
ONT
1 stop19h 05m
JetBlue
Sat 29/823:24
ONT
-
DUB
1 stop25h 36m
JetBlue
Deal found 17/6£502
Thu 3/1208:50
DUB
-
ONT
2 stops23h 05m
British Airways
Sun 6/1214:56
ONT
-
DUB
2 stops20h 44m
British Airways
Deal found 17/6£522
Mon 21/1206:00
DUB
-
ONT
2 stops18h 13m
Delta
Mon 4/107:00
ONT
-
DUB
2 stops16h 55m
Delta
Deal found 15/6£530
Tue 22/1209:55
DUB
-
ONT
2 stops21h 53m
Delta
Tue 5/107:00
ONT
-
DUB
2 stops18h 00m
Delta
Deal found 15/6£530
Thu 24/1210:40
DUB
-
ONT
1 stop19h 46m
United Airlines
Thu 7/116:03
ONT
-
DUB
2 stops31h 27m
United Airlines
Deal found 15/6£532
Wed 23/1209:00
DUB
-
ONT
2 stops43h 20m
Air Canada
Wed 6/113:00
ONT
-
DUB
2 stops34h 10m
Air Canada
Deal found 15/6£536
Sat 17/1011:00
DUB
-
ONT
1 stop15h 18m
KLM
Mon 26/1012:00
ONT
-
DUB
1 stop12h 45m
KLM
Deal found 17/6£536
Wed 30/911:00
DUB
-
ONT
1 stop16h 57m
Multiple Airlines
Mon 12/1012:00
ONT
-
DUB
1 stop12h 45m
Multiple Airlines
Deal found 17/6£537
Tue 22/1208:50
DUB
-
ONT
2 stops21h 24m
American Airlines
Wed 6/109:59
ONT
-
DUB
2 stops14h 31m
American Airlines
Deal found 15/6£555
Fri 21/811:30
DUB
-
ONT
1 stop19h 05m
JetBlue
Sat 29/823:24
ONT
-
DUB
1 stop25h 36m
JetBlue
Deal found 16/6£559

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 19 June 2026.

Round-trip from

£502

One-way from

£287

Popular in

July

Cheapest in

January

Average price

£590
JetBlue
  • JetBlue
  • 20/8-29/8
  • 2 total stops
  • 44h 41m total
  • Dublin to Ontario
Search Deals
JetBlue
  • JetBlue
  • 2/9
  • 1 total stop
  • 19h 05m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£93 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 19 June 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

Wed 30/9

11:00-19:57

1 stop16h 57m

Ontario

Mon 12/10

12:00-08:45

1 stop12h 45m

£537

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 21/8

11:30-22:35

1 stop19h 05m

Ontario

Sat 29/8

23:24-09:00

1 stop25h 36m

£559

DublinOntario

DUB - ONT

DUBONT

Dublin

Sat 4/7

11:00-18:30

1 stop15h 30m

Ontario

Wed 8/7

11:48-08:45

1 stop12h 57m

£690
Fastest return journey

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 3/7

11:00-18:30

1 stop15h 30m

Ontario

Thu 16/7

11:48-08:45

1 stop12h 57m

£702

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 30/9

17:05-20:13

2 stops59h 08m

Ontario

Mon 12/10

23:05-23:05

2 stops40h 00m

£936

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 17/8

05:55-23:11

2 stops25h 16m

Ontario

Fri 21/8

23:50-09:35

2 stops49h 45m

£1,031

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 20/8

14:15-23:24

2 stops17h 09m

Ontario

Sat 29/8

15:07-13:15

2 stops38h 08m

£1,042

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 9/7

05:45-23:11

2 stops25h 26m

Ontario

Wed 22/7

23:51-23:05

2 stops39h 14m

£1,052

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 4/8

14:15-23:11

2 stops16h 56m

Ontario

Tue 25/8

15:07-13:15

2 stops38h 08m

£1,080

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 21/8

12:15-23:24

2 stops19h 09m

Ontario

Sat 29/8

15:07-13:15

2 stops38h 08m

£1,089

Flights are sorted by cheapest return flights first.

Deals found on 17/6

Showing 1-10 of 23 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 £702, JetBlue can have you in Ontario from Dublin in 15h 30m. 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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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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