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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 28/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ONT
5 Jul — 12 Jul1
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 5 June 2026.

Mon 9/1113:00
DUB
-
ONT
1 stop17h 23m
Iberia
Mon 16/1107:00
ONT
-
DUB
1 stop16h 15m
Iberia
Deal found 3/6£529
Thu 3/1210:40
DUB
-
ONT
2 stops33h 53m
United Airlines
Mon 7/1205:00
ONT
-
DUB
2 stops18h 30m
United Airlines
Deal found 1/6£599
Wed 14/1011:00
DUB
-
ONT
1 stop15h 18m
KLM
Thu 26/1107:00
ONT
-
DUB
1 stop16h 45m
KLM
Deal found 1/6£626
Sun 5/712:40
DUB
-
ONT
1 stop15h 13m
Iberia
Sun 19/712:35
ONT
-
DUB
1 stop13h 10m
Iberia
Deal found 5/6£635
Thu 2/712:40
DUB
-
ONT
1 stop17h 52m
Iberia
Mon 13/712:35
ONT
-
DUB
1 stop13h 10m
Iberia
Deal found 4/6£636
Sat 29/805:55
DUB
-
ONT
2 stops18h 29m
Delta
Tue 8/907:00
ONT
-
DUB
1 stop17h 45m
Delta
Deal found 1/6£639
Sat 29/809:50
DUB
-
ONT
2 stops20h 45m
United Airlines
Tue 8/907:00
ONT
-
DUB
2 stops16h 20m
United Airlines
Deal found 1/6£641
Thu 11/615:25
DUB
-
ONT
1 stop15h 46m
Multiple Airlines
Wed 24/606:02
ONT
-
DUB
1 stop22h 18m
Multiple Airlines
Deal found 4/6£647
Mon 8/611:30
DUB
-
ONT
1 stop17h 17m
JetBlue
Sun 21/623:56
ONT
-
DUB
1 stop25h 04m
JetBlue
Deal found 1/6£699
Thu 18/612:40
DUB
-
ONT
1 stop15h 16m
Iberia
Wed 8/712:35
ONT
-
DUB
1 stop13h 10m
Iberia
Deal found 4/6£721
Wed 15/705:55
DUB
-
ONT
2 stops24h 57m
Delta
Fri 24/706:00
ONT
-
DUB
2 stops17h 55m
Delta
Deal found 5/6£724

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 5 June 2026.

Round-trip from

£529

One-way from

£417

Popular in

July

Cheapest in

January

Average price

£566
Iberia
  • Iberia
  • 9/11-16/11
  • 2 total stops
  • 33h 38m total
  • Dublin to Ontario
Search Deals
JetBlue
  • JetBlue
  • 28/8
  • 1 total stop
  • 19h 05m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£80 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 June 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 5 June 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
Fastest return journey

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 9/10

11:00-18:18

1 stop15h 18m

Ontario

Sun 11/10

12:00-08:45

1 stop12h 45m

£647

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 29/6

11:00-18:30

1 stop15h 30m

Ontario

Mon 13/7

11:48-08:45

1 stop12h 57m

£732

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 22/7

11:00-18:30

1 stop15h 30m

Ontario

Wed 29/7

11:48-08:45

1 stop12h 57m

£735

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 15/6

06:30-18:21

2 stops19h 51m

Ontario

Sun 21/6

13:11-15:45

2 stops18h 34m

£776

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 3/7

09:20-21:55

2 stops20h 35m

Ontario

Fri 31/7

06:10-08:15

2 stops18h 05m

£783

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 19/6

11:00-21:48

1 stop18h 48m

Ontario

Fri 26/6

09:40-07:55

2 stops14h 15m

£798

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 22/7

11:00-18:30

1 stop15h 30m

Ontario

Fri 31/7

11:48-08:45

1 stop12h 57m

£829

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 9/11

11:30-22:54

2 stops19h 24m

Ontario

Mon 16/11

10:37-10:15

2 stops15h 38m

£837

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 15/6

11:00-21:48

1 stop18h 48m

Ontario

Mon 22/6

07:05-08:45

1 stop17h 40m

£841

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 19/11

11:30-22:54

2 stops19h 24m

Ontario

Wed 2/12

10:05-10:15

2 stops16h 10m

£852

Flights are sorted by cheapest return flights first.

Deals found on 1/6

Showing 1-10 of 24 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 £639, Delta can have you in Ontario from Dublin in 18h 29m. 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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