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Cheap flights from Dublin to Ontario from £417

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ONT
13 Sep — 20 Sep1
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
Explore the most affordable flight options available from Dublin to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Wed 21/1012:40 -
1 stop14h 04m
Sat 31/1006:00 -
1 stop18h 10m
Deal found 14/8£543
Sun 27/912:35 -
2 stops19h 01m
Sun 4/1008:17 -
1 stop17h 28m
Deal found 12/8£612
Tue 20/1011:00 -
1 stop17h 25m
Sun 1/1107:07 -
1 stop16h 38m
Deal found 14/8£626
Thu 3/911:00 -
1 stop15h 30m
Fri 4/1207:00 -
1 stop16h 45m
Deal found 12/8£628
Tue 20/1005:55 -
2 stops19h 17m
Sun 1/1107:07 -
1 stop16h 38m
Deal found 14/8£637
Mon 28/905:55 -
2 stops24h 29m
Mon 5/1011:54 -
2 stops22h 31m
Deal found 14/8£639
Thu 24/905:55 -
2 stops19h 24m
Thu 1/1009:52 -
2 stops21h 33m
Deal found 10/8£640
Fri 28/805:55 -
2 stops19h 26m
Tue 1/912:00 -
2 stops20h 40m
Deal found 13/8£643
Tue 6/1009:50 -
2 stops20h 59m
Thu 15/1007:00 -
2 stops16h 20m
Deal found 13/8£646
Fri 25/909:20 -
2 stops19h 11m
Fri 2/1005:00 -
2 stops18h 20m
Deal found 11/8£647
Tue 20/1011:00 -
1 stop17h 25m
Fri 30/1012:18 -
1 stop12h 27m
Deal found 14/8£648

Find flight deals from Dublin to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 14 August 2026.

Round-trip from

£526

One-way from

£417

Popular in

July

Cheapest in

January

Average price

£672
Iberia
  • Iberia
  • 24/9-30/9
  • 2 total stops
  • 32h 04m total
  • Dublin to Ontario
Search Deals
4/9
  • 4/9
  • 2 total stops
  • 33h 10m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£90 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 August 2026.
Use the filters below to find and compare flights from Dublin to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 5/2

10:50-22:45

2 stops19h 55m

Ontario

Mon 8/2

12:43-17:05

2 stops20h 22m

£536

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 5/2

10:40-18:44

1 stop16h 04m

Ontario

Mon 8/2

06:00-07:30

2 stops17h 30m

£604

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 21/10

11:00-20:25

1 stop17h 25m

Ontario

Sun 1/11

07:07-07:45

1 stop16h 38m

£626

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 20/10

11:00-20:25

1 stop17h 25m

Ontario

Sun 1/11

07:07-07:45

1 stop16h 38m

£626

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 3/9

11:00-18:30

1 stop15h 30m

Ontario

Sun 28/2

07:00-07:45

1 stop16h 45m

£628

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 20/10

05:55-17:12

2 stops19h 17m

Ontario

Sun 1/11

07:07-07:45

1 stop16h 38m

£637

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sun 27/9

09:20-10:23

2 stops33h 03m

Ontario

Sun 4/10

06:00-07:30

2 stops17h 30m

£646

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 5/10

09:50-12:46

2 stops34h 56m

Ontario

Thu 15/10

07:00-07:20

2 stops16h 20m

£646

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 25/9

09:20-20:31

2 stops19h 11m

Ontario

Fri 2/10

05:00-07:20

2 stops18h 20m

£647
Fastest return journey

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 21/10

11:00-20:25

1 stop17h 25m

Ontario

Fri 30/10

12:18-07:45

1 stop12h 27m

£648

Flights are sorted by cheapest return flights first.

Deals found on 10/8

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Dublin to Ontario?

    For as low as £604, 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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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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