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Cheap flights from Dublin to Ontario from £317

DUB — ONT
26 Oct — 2 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

Sat 21/1111:00 -
2 stops19h 36m
Wed 25/1107:00 -
2 stops21h 15m
Deal found 24/9£479
Wed 11/1111:30 -
2 stops20h 16m
Mon 30/1110:37 -
1 stop12h 33m
Deal found 22/9£488
Fri 2/1009:30 -
2 stops18h 39m
Sun 18/1023:59 -
2 stops22h 31m
Deal found 25/9£530
Sat 17/1009:50 -
2 stops15h 56m
Fri 6/1105:00 -
2 stops18h 10m
Deal found 25/9£554
Thu 24/1210:40 -
1 stop20h 01m
Sun 17/107:00 -
1 stop17h 10m
Deal found 22/9£560
Mon 23/1109:55 -
1 stop18h 49m
Mon 7/1207:05 -
1 stop16h 40m
Deal found 22/9£561
Sun 22/1110:40 -
1 stop16h 07m
Mon 30/1105:00 -
2 stops20h 55m
Deal found 24/9£564
Fri 11/1210:40 -
1 stop16h 04m
Wed 23/1205:55 -
2 stops20h 00m
Deal found 25/9£566
Thu 8/1005:55 -
2 stops19h 17m
Mon 12/1007:07 -
2 stops24h 18m
Deal found 23/9£569
Thu 24/1209:40 -
2 stops20h 29m
Fri 15/107:00 -
2 stops17h 45m
Deal found 22/9£570
Fri 2/1011:35 -
1 stop19h 14m
Sun 18/1007:00 -
1 stop18h 45m
Deal found 25/9£573
Wed 23/1210:40 -
2 stops20h 13m
Fri 15/106:00 -
2 stops17h 30m
Deal found 22/9£587

Find flight deals from Dublin to Ontario

Round-trip from

£479

One-way from

£317

Popular in

July

Cheapest in

March

Average price

£547
British Airways
  • British Airways
  • 21/11-27/11
  • 4 total stops
  • 37h 06m total
  • Dublin to Ontario
Search Deals
Delta
  • Delta
  • 7/3-31/12
  • 2 total stops
  • 18h 27m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£82 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 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

Mon 15/2

09:40-22:14

1 stop20h 34m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£329

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 28/12

18:05-18:50

2 stops32h 45m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£425

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 21/1

08:50-23:08

2 stops22h 18m

Ontario

Mon 25/1

07:00-09:55

2 stops18h 55m

£481

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 13/10

11:30-22:12

1 stop18h 42m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£507

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 21/1

10:40-18:44

1 stop16h 04m

Ontario

Mon 25/1

07:00-08:10

1 stop17h 10m

£527

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 15/1

10:40-18:44

1 stop16h 04m

Ontario

Fri 29/1

07:00-08:10

1 stop17h 10m

£530

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 7/10

08:50-20:58

3 stops20h 08m

Ontario

Sun 11/10

06:00-07:30

2 stops17h 30m

£613

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 9/10

11:30-22:12

1 stop18h 42m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£650

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sun 4/10

11:30-20:26

1 stop16h 56m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£651

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 10/10

11:10-22:43

2 stops19h 33m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£692

Flights are sorted by cheapest return flights first.

Deals found on 21/9

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 £527, British Airways can have you in Ontario from Dublin in 16h 04m. 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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