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Cheap flights from Dublin to Ontario from £371

DUB — ONT
29 Nov — 6 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

Fri 13/1105:45 -
2 stops20h 49m
Tue 17/1107:05 -
2 stops23h 25m
Deal found 29/10£547
Fri 4/1212:05 -
2 stops17h 06m
Sun 13/1205:45 -
2 stops20h 10m
Deal found 29/10£555
Fri 6/1112:55 -
1 stop16h 37m
Sat 21/1107:00 -
1 stop16h 10m
Deal found 29/10£556
Wed 11/1109:40 -
1 stop19h 14m
Sun 15/1107:05 -
1 stop16h 40m
Deal found 26/10£559
Mon 23/1109:55 -
1 stop18h 49m
Fri 4/1207:05 -
1 stop16h 40m
Deal found 25/10£567
Mon 2/1112:05 -
2 stops18h 43m
Tue 5/114:00 -
2 stops33h 30m
Deal found 26/10£579
Sun 15/1109:40 -
1 stop16h 54m
Sun 29/1107:05 -
1 stop16h 40m
Deal found 27/10£587
Sun 1/1109:40 -
1 stop17h 50m
Sun 8/1107:07 -
1 stop16h 38m
Deal found 28/10£610
Sat 5/1209:00 -
2 stops20h 11m
Mon 21/1205:55 -
2 stops20h 25m
Deal found 26/10£611
Sat 31/1012:55 -
1 stop15h 16m
Fri 6/1107:00 -
1 stop16h 10m
Deal found 26/10£613
Wed 16/1211:55 -
2 stops38h 43m
Wed 23/1211:14 -
1 stop12h 31m
Deal found 29/10£631

Find flight deals from Dublin to Ontario

Round-trip from

£539

One-way from

£371

Popular in

July

Cheapest in

March

Average price

£604
United Airlines
  • United Airlines
  • 5/12-10/12
  • 3 total stops
  • 37h 21m total
  • Dublin to Ontario
Search Deals
Delta
  • Delta
  • 16/4-31/12
  • 2 total stops
  • 16h 59m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£76 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% 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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Cheapest return flight

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

£553

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 16/4

12:15-22:39

2 stops18h 24m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£555

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 15/4

12:15-22:39

2 stops18h 24m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£555

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 23/11

09:55-20:44

1 stop18h 49m

Ontario

Fri 4/12

07:05-07:45

1 stop16h 40m

£567

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 13/1

09:30-18:50

2 stops17h 20m

Ontario

Sat 23/1

07:00-08:10

1 stop17h 10m

£579

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sun 15/11

09:40-18:34

1 stop16h 54m

Ontario

Sun 29/11

07:05-07:45

1 stop16h 40m

£587

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 15/12

11:30-21:45

2 stops18h 15m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£635

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 16/2

11:30-21:40

2 stops18h 10m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£638

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 13/1

11:30-22:41

2 stops19h 11m

Ontario

Wed 20/1

10:56-10:15

2 stops15h 19m

£665

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 9/11

09:55-18:34

1 stop16h 39m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£669

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 22 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 £567, United Airlines can have you in Ontario from Dublin in 18h 49m. 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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