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Cheap flights from Dublin to Ontario from £322

DUB — ONT
12 Oct — 19 Oct1
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

Mon 26/1011:30 -
2 stops33h 00m
Mon 2/1109:29 -
2 stops37h 41m
Deal found 11/9£491
Mon 26/1011:30 -
2 stops34h 46m
Mon 2/1106:00 -
1 stop17h 10m
Deal found 11/9£495
Thu 29/1012:55 -
1 stop15h 16m
Thu 12/1107:00 -
1 stop16h 10m
Deal found 8/9£505
Sat 26/1213:05 -
2 stops18h 52m
Mon 4/113:25 -
2 stops22h 20m
Deal found 11/9£516
Wed 25/1109:40 -
1 stop19h 14m
Wed 2/1207:05 -
1 stop16h 40m
Deal found 10/9£528
Sat 26/1211:00 -
2 stops20h 57m
Sun 3/106:12 -
2 stops42h 18m
Deal found 10/9£554
Sat 26/1213:05 -
2 stops18h 52m
Sat 2/112:41 -
2 stops21h 04m
Deal found 10/9£582
Sun 27/1211:00 -
2 stops20h 59m
Mon 4/113:25 -
2 stops19h 40m
Deal found 10/9£613
Fri 18/908:55 -
2 stops21h 45m
Fri 2/1006:00 -
2 stops17h 55m
Deal found 7/9£646

Find flight deals from Dublin to Ontario

Round-trip from

£476

One-way from

£322

Popular in

July

Cheapest in

January

Average price

£533
British Airways
  • British Airways
  • 21/1-25/1
  • 4 total stops
  • 41h 54m total
  • Dublin to Ontario
Search Deals
Air France
  • Air France
  • 12/12-31/12
  • 1 total stop
  • 18h 16m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£85 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 September 2026
Search Deals

Cheapflights Fare Finder

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

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Route

Depart

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Price

Cheapest return flight

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 14/11

09:40-19:49

1 stop18h 09m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£326
Fastest return journey

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 26/9

11:30-20:57

1 stop17h 27m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£464

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 30/9

11:30-20:57

1 stop17h 27m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£607

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 3/10

11:30-20:57

1 stop17h 27m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£607

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 1/10

05:45-23:24

2 stops25h 39m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£628

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 2/10

05:35-23:24

2 stops25h 49m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£628

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 29/9

11:30-20:57

1 stop17h 27m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£675

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 12/12

11:30-21:00

2 stops17h 30m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£689

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 29/9

05:35-22:05

2 stops24h 30m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£726

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sun 27/12

11:30-23:56

2 stops20h 26m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£734

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 20 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

Related info for your journey

  • How long is the flight from Dublin to Ontario?

    For as low as £751, British Airways can have you in Ontario from Dublin in 21h 12m. The distance between Dublin and Ontario is about 5132 mi.

  • 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.

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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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