Find flights
When to book
FAQs

Cheap flights from Dublin to Ontario from £280

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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ONT
2 Aug — 9 Aug1
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 3 July 2026.

Thu 15/1012:40
DUB
-
ONT
1 stop16h 31m
Iberia
Mon 19/1012:43
ONT
-
DUB
1 stop13h 02m
Iberia
Deal found 2/7£525
Mon 17/811:30
DUB
-
ONT
1 stop19h 08m
JetBlue
Sun 30/823:59
ONT
-
DUB
1 stop25h 01m
JetBlue
Deal found 2/7£556
Mon 17/811:30
DUB
-
ONT
1 stop19h 08m
JetBlue
Mon 24/823:59
ONT
-
DUB
1 stop25h 01m
JetBlue
Deal found 1/7£574
Fri 10/712:40
DUB
-
ONT
1 stop15h 19m
Iberia
Tue 21/712:35
ONT
-
DUB
1 stop13h 10m
Iberia
Deal found 1/7£629
Mon 17/811:10
DUB
-
ONT
2 stops19h 49m
British Airways
Mon 24/816:07
ONT
-
DUB
2 stops18h 33m
British Airways
Deal found 3/7£641
Mon 17/812:40
DUB
-
ONT
1 stop18h 19m
American Airlines
Mon 24/810:29
ONT
-
DUB
2 stops17h 21m
American Airlines
Deal found 3/7£642
Thu 22/1011:00
DUB
-
ONT
1 stop15h 13m
Multiple Airlines
Fri 30/1012:18
ONT
-
DUB
1 stop12h 27m
Multiple Airlines
Deal found 1/7£650

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 3 July 2026.

Round-trip from

£525

One-way from

£280

Popular in

July

Cheapest in

January

Average price

£749
Iberia
  • Iberia
  • 15/10-19/10
  • 2 total stops
  • 29h 33m total
  • Dublin to Ontario
Search Deals
JetBlue
  • JetBlue
  • 24/8
  • 1 total stop
  • 19h 08m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£97 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 July 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 3 July 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 - ONT

DUBONT

Dublin

Mon 17/8

11:30-22:38

1 stop19h 08m

Ontario

Sun 30/8

23:59-09:00

1 stop25h 01m

£557

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 17/8

09:50-22:35

2 stops44h 45m

Ontario

Mon 24/8

07:00-07:20

2 stops16h 20m

£717

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 17/8

11:00-18:30

1 stop15h 30m

Ontario

Mon 24/8

06:00-07:55

2 stops17h 55m

£722

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 5/10

08:55-22:40

2 stops21h 45m

Ontario

Fri 9/10

23:15-08:45

1 stop25h 30m

£746

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 16/12

11:30-22:39

2 stops19h 09m

Ontario

Mon 11/1

10:03-10:15

2 stops16h 12m

£759
Fastest return journey

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 5/10

14:15-23:45

2 stops17h 30m

Ontario

Tue 17/11

10:37-10:15

2 stops15h 38m

£776

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 5/10

14:15-23:45

2 stops17h 30m

Ontario

Fri 16/10

11:13-13:15

2 stops18h 02m

£871

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 23/12

11:30-22:39

2 stops19h 09m

Ontario

Sun 3/1

08:50-10:15

2 stops17h 25m

£1,066

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 3/8

05:55-23:11

2 stops25h 16m

Ontario

Mon 17/8

23:59-23:05

2 stops39h 06m

£1,130

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 20/8

14:15-23:24

2 stops17h 09m

Ontario

Sat 5/9

10:45-11:05

2 stops16h 20m

£1,201

Flights are sorted by cheapest return flights first.

Deals found on 28/6

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 £722, JetBlue can have you in Ontario from Dublin in 15h 30m. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.