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Cheap flights from Dublin to Ontario from £283

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 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ONT
26 Jul — 2 Aug1
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 26 June 2026.

Thu 27/808:55
DUB
-
ONT
2 stops20h 57m
Delta
Sun 30/809:43
ONT
-
DUB
2 stops21h 42m
Delta
Deal found 23/6£523
Mon 12/1012:40
DUB
-
ONT
1 stop16h 28m
Iberia
Mon 26/1007:20
ONT
-
DUB
1 stop16h 55m
Iberia
Deal found 22/6£535
Fri 4/911:00
DUB
-
ONT
1 stop15h 30m
KLM
Mon 7/907:05
ONT
-
DUB
1 stop17h 40m
KLM
Deal found 24/6£557
Fri 4/912:40
DUB
-
ONT
1 stop18h 19m
Iberia
Mon 7/907:05
ONT
-
DUB
1 stop18h 40m
Iberia
Deal found 24/6£559
Tue 3/1109:40
DUB
-
ONT
1 stop16h 38m
KLM
Wed 18/1107:00
ONT
-
DUB
2 stops17h 45m
KLM
Deal found 25/6£588
Mon 12/1011:00
DUB
-
ONT
1 stop19h 14m
Multiple Airlines
Mon 26/1013:00
ONT
-
DUB
2 stops18h 30m
Multiple Airlines
Deal found 22/6£607
Tue 7/711:10
DUB
-
ONT
2 stops19h 42m
Delta
Sat 11/717:10
ONT
-
DUB
2 stops30h 45m
Delta
Deal found 22/6£671
Thu 16/709:20
DUB
-
ONT
2 stops21h 31m
United Airlines
Sat 25/705:00
ONT
-
DUB
2 stops18h 30m
United Airlines
Deal found 22/6£676
Tue 14/711:35
DUB
-
ONT
2 stops19h 02m
United Airlines
Mon 27/706:10
ONT
-
DUB
1 stop19h 35m
United Airlines
Deal found 22/6£679
Sat 11/711:30
DUB
-
ONT
1 stop18h 29m
JetBlue
Sun 26/723:58
ONT
-
DUB
1 stop25h 02m
JetBlue
Deal found 26/6£680

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 26 June 2026.

Round-trip from

£523

One-way from

£283

Popular in

July

Cheapest in

January

Average price

£598
Delta
  • Delta
  • 27/8-30/8
  • 4 total stops
  • 42h 39m total
  • Dublin to Ontario
Search Deals
JetBlue
  • JetBlue
  • 19/8
  • 1 total stop
  • 19h 07m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£98 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 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 26 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

Thu 27/8

08:55-21:52

2 stops20h 57m

Ontario

Sun 30/8

22:00-08:45

1 stop26h 45m

£526
Fastest return journey

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 6/8

12:40-18:47

1 stop14h 07m

Ontario

Tue 11/8

12:33-09:45

1 stop13h 12m

£710

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 14/8

07:30-22:59

2 stops23h 29m

Ontario

Tue 18/8

14:27-16:35

2 stops18h 08m

£802

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 3/11

11:30-22:54

2 stops19h 24m

Ontario

Wed 18/11

10:05-10:15

2 stops16h 10m

£820

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 19/8

11:30-22:37

1 stop19h 07m

Ontario

Thu 20/8

23:59-04:30

1 stop20h 31m

£958

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 14/8

09:50-18:07

2 stops16h 17m

Ontario

Tue 18/8

09:01-08:15

2 stops15h 14m

£1,013

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 7/9

17:05-20:13

2 stops59h 08m

Ontario

Sun 13/9

21:10-09:35

2 stops52h 25m

£1,148

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 13/8

05:45-23:11

2 stops25h 26m

Ontario

Wed 26/8

23:59-16:00

2 stops32h 01m

£1,164

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 20/8

14:15-23:24

2 stops17h 09m

Ontario

Sat 5/9

10:45-11:05

2 stops16h 20m

£1,214

DublinOntario

DUB - ONT

DUBONT

Dublin

Sat 11/7

05:35-23:11

2 stops25h 36m

Ontario

Sun 26/7

23:58-16:00

2 stops32h 02m

£1,265

Flights are sorted by cheapest return flights first.

Deals found on 24/6

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 £710, Delta can have you in Ontario from Dublin in 14h 07m. 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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