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Cheap flights from Dublin to Ontario from £315

DUB — ONT
19 Oct — 26 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

Thu 5/1111:30 -
2 stops18h 02m
Wed 25/1107:00 -
2 stops17h 40m
Deal found 14/9£488
Fri 6/1111:30 -
2 stops19h 31m
Tue 24/1114:09 -
2 stops18h 46m
Deal found 14/9£498
Mon 2/1110:50 -
2 stops19h 22m
Mon 9/1107:00 -
1 stop16h 10m
Deal found 18/9£512
Mon 2/1113:25 -
2 stops29h 41m
Mon 9/1107:00 -
2 stops23h 30m
Deal found 18/9£517
Wed 4/1110:40 -
1 stop16h 07m
Sun 31/107:00 -
2 stops16h 30m
Deal found 17/9£526
Mon 23/1109:40 -
1 stop19h 04m
Mon 7/1207:05 -
1 stop16h 40m
Deal found 15/9£531
Wed 25/1109:40 -
1 stop19h 14m
Wed 2/1207:05 -
1 stop16h 40m
Deal found 18/9£537
Mon 2/1112:05 -
2 stops18h 43m
Mon 9/1105:00 -
3 stops21h 20m
Deal found 18/9£560
Thu 24/1205:45 -
2 stops24h 14m
Sat 16/107:00 -
2 stops17h 45m
Deal found 15/9£561
Fri 25/1208:50 -
2 stops33h 10m
Fri 15/107:00 -
2 stops17h 45m
Deal found 15/9£562
Fri 25/905:55 -
2 stops24h 45m
Sun 25/1006:00 -
2 stops25h 25m
Deal found 18/9£563
Mon 2/1112:55 -
1 stop28h 45m
Mon 9/1106:00 -
1 stop17h 10m
Deal found 18/9£572

Find flight deals from Dublin to Ontario

Round-trip from

£478

One-way from

£315

Popular in

July

Cheapest in

January

Average price

£539
British Airways
  • British Airways
  • 21/1-25/1
  • 4 total stops
  • 41h 54m total
  • Dublin to Ontario
Search Deals
Delta
  • Delta
  • 17/11-31/12
  • 2 total stops
  • 18h 39m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 16% 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

Wed 17/2

09:40-22:14

1 stop20h 34m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£330

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 21/1

08:50-21:59

2 stops21h 09m

Ontario

Mon 25/1

10:40-15:25

2 stops20h 45m

£478

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 2/11

13:25-11:06

2 stops29h 41m

Ontario

Mon 9/11

07:00-14:30

2 stops23h 30m

£517

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 21/1

09:00-20:26

2 stops19h 26m

Ontario

Mon 25/1

07:00-08:10

1 stop17h 10m

£523
Fastest return journey

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 19/10

11:00-18:22

1 stop15h 22m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£550

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 7/11

09:00-20:51

2 stops19h 51m

Ontario

Wed 25/11

06:00-10:20

2 stops20h 20m

£610

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 5/10

05:55-23:42

2 stops25h 47m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£621

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 6/11

11:30-22:45

2 stops19h 15m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£694

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 21/12

11:30-23:56

2 stops20h 26m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£735

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

£735

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 16 resultsSorted by cheapest first
1
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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 £523, British Airways can have you in Ontario from Dublin in 19h 26m. 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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