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Cheap flights from Dublin to Ontario from £381

DUB — ONT
14 Dec — 21 Dec1
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

Sat 21/1109:55 -
1 stop17h 54m
Sat 5/1207:05 -
1 stop16h 40m
Deal found 13/11£557
Fri 20/1109:40 -
1 stop16h 54m
Sat 5/1207:05 -
1 stop16h 40m
Deal found 13/11£558
Fri 27/1109:30 -
2 stops21h 18m
Tue 1/1207:00 -
1 stop17h 10m
Deal found 12/11£559
Thu 19/1109:55 -
1 stop16h 39m
Mon 23/1107:05 -
1 stop16h 40m
Deal found 11/11£564
Tue 24/1113:25 -
2 stops42h 24m
Sat 28/1123:06 -
1 stop24h 39m
Deal found 9/11£570
Wed 9/1212:05 -
2 stops29h 33m
Wed 16/1205:45 -
2 stops20h 35m
Deal found 11/11£584
Mon 16/1109:55 -
1 stop16h 39m
Wed 2/1207:05 -
1 stop16h 40m
Deal found 11/11£614
Fri 13/1110:40 -
2 stops17h 35m
Fri 20/1106:00 -
2 stops19h 55m
Deal found 12/11£627
Tue 24/1110:40 -
2 stops18h 11m
Sat 28/1105:00 -
2 stops18h 10m
Deal found 9/11£634

Find flight deals from Dublin to Ontario

Round-trip from

£556

One-way from

£381

Popular in

July

Cheapest in

March

Average price

£540
United Airlines
  • United Airlines
  • 28/1-14/2
  • 3 total stops
  • 32h 40m total
  • Dublin to Ontario
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KLM
  • KLM
  • 18/4-31/12
  • 1 total stop
  • 15h 22m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£78 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
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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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Price

Cheapest return flight

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 31/12

07:35-22:22

2 stops22h 47m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£542

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 6/1

07:35-23:13

2 stops23h 38m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£550

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 28/1

10:40-18:50

1 stop16h 10m

Ontario

Sun 14/2

07:00-07:30

2 stops16h 30m

£556

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 26/1

10:40-20:01

2 stops17h 21m

Ontario

Sat 13/2

07:00-08:10

1 stop17h 10m

£556

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 27/1

10:40-18:50

1 stop16h 10m

Ontario

Sun 14/2

06:00-07:30

2 stops17h 30m

£556

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 26/1

10:40-20:01

2 stops17h 21m

Ontario

Sun 14/2

07:00-07:30

2 stops16h 30m

£556

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 29/1

09:30-18:50

2 stops17h 20m

Ontario

Sat 13/2

07:00-07:30

2 stops16h 30m

£556

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 17/4

12:15-22:39

2 stops18h 24m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£559

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 20/11

09:40-18:34

1 stop16h 54m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£678

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sun 27/12

10:40-22:11

2 stops43h 31m

Ontario

Sun 3/1

05:00-07:30

2 stops42h 30m

£701

Flights are sorted by cheapest return flights first.

Deals found on 12/11

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

Related info for your journey

  • How long is the flight from Dublin to Ontario?

    For as low as £556, United Airlines can have you in Ontario from Dublin in 16h 10m. 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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