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Cheap flights from Dublin to Ontario from £327

DUB — ONT
14 Nov — 21 Nov1
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 16/1109:55 -
1 stop16h 39m
Wed 2/1207:05 -
1 stop16h 40m
Deal found 14/10£470
Thu 5/1112:55 -
1 stop16h 37m
Sat 21/1123:59 -
1 stop23h 11m
Deal found 14/10£471
Sat 7/1109:55 -
1 stop17h 35m
Mon 23/1107:05 -
1 stop16h 40m
Deal found 14/10£538
Wed 25/1110:40 -
1 stop16h 07m
Wed 2/1207:00 -
1 stop17h 10m
Deal found 11/10£538
Thu 29/1013:25 -
2 stops28h 41m
Mon 2/1106:00 -
2 stops24h 30m
Deal found 12/10£551
Sun 20/1210:40 -
2 stops43h 31m
Wed 30/1205:00 -
2 stops20h 55m
Deal found 14/10£597
Fri 6/1112:55 -
1 stop16h 37m
Sat 21/1107:00 -
1 stop16h 10m
Deal found 11/10£604
Mon 21/1210:40 -
2 stops43h 31m
Wed 30/1205:00 -
2 stops19h 10m
Deal found 13/10£613
Wed 14/1011:00 -
1 stop17h 25m
Sun 25/1012:16 -
1 stop12h 29m
Deal found 12/10£699
Sun 18/1009:50 -
2 stops34h 56m
Sat 31/1006:00 -
2 stops17h 10m
Deal found 15/10£702
Fri 16/1011:00 -
1 stop15h 21m
Thu 29/1012:16 -
1 stop12h 29m
Deal found 14/10£716
Thu 5/1109:00 -
2 stops21h 48m
Sat 21/1105:00 -
2 stops18h 10m
Deal found 14/10£718

Find flight deals from Dublin to Ontario

Round-trip from

£467

One-way from

£327

Popular in

July

Cheapest in

March

Average price

£572
British Airways
  • British Airways
  • 21/1-25/1
  • 4 total stops
  • 41h 03m total
  • Dublin to Ontario
Search Deals
KLM
  • KLM
  • 6/12-31/12
  • 1 total stop
  • 16h 58m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£79 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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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Depart

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Price

Cheapest return flight

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sun 6/12

09:40-18:38

1 stop16h 58m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£327
Fastest return journey

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 3/12

09:55-18:38

1 stop16h 43m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£327

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 26/11

09:55-19:49

1 stop17h 54m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£511

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 30/1

09:00-21:00

2 stops20h 00m

Ontario

Thu 4/2

07:00-07:30

2 stops16h 30m

£535

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 21/1

09:00-20:25

2 stops19h 25m

Ontario

Mon 25/1

07:00-08:10

1 stop17h 10m

£535

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 6/2

10:40-20:01

2 stops17h 21m

Ontario

Mon 15/2

05:00-07:30

2 stops18h 30m

£538

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 15/1

10:40-18:50

1 stop16h 10m

Ontario

Fri 22/1

07:00-08:10

1 stop17h 10m

£538

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 14/12

11:30-21:40

2 stops18h 10m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£643

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 14/11

11:30-21:05

2 stops17h 35m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£680

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 28/12

10:40-22:53

2 stops20h 13m

Ontario

Sun 17/1

07:00-08:10

1 stop17h 10m

£733

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 21 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 £535, United Airlines can have you in Ontario from Dublin in 20h. 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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