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Cheap flights from Dublin to Ontario from £381

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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ONT
10 Apr — 17 Apr1
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 11 March 2026.

Fri 10/409:30
DUB
-
ONT
1 stop21h 06m
Iberia
Fri 24/410:59
ONT
-
DUB
1 stop14h 46m
Iberia
Deal found 10/3£440
Sat 16/511:40
DUB
-
ONT
1 stop18h 29m
JetBlue
Tue 26/522:00
ONT
-
DUB
1 stop27h 00m
JetBlue
Deal found 5/3£489
Thu 23/406:30
DUB
-
ONT
2 stops17h 52m
British Airways
Thu 30/414:08
ONT
-
DUB
2 stops18h 27m
British Airways
Deal found 9/3£495
Thu 23/409:30
DUB
-
ONT
1 stop17h 07m
American Airlines
Thu 30/407:30
ONT
-
DUB
2 stops17h 10m
American Airlines
Deal found 9/3£544
Wed 28/1008:00
DUB
-
ONT
2 stops21h 26m
United Airlines
Sun 1/1107:00
ONT
-
DUB
2 stops43h 20m
United Airlines
Deal found 9/3£562
Wed 25/306:00
DUB
-
ONT
2 stops23h 34m
Delta
Sun 29/306:00
ONT
-
DUB
2 stops25h 25m
Delta
Deal found 9/3£582
Tue 2/609:50
DUB
-
ONT
2 stops20h 56m
United Airlines
Mon 5/1007:00
ONT
-
DUB
1 stop18h 45m
United Airlines
Deal found 8/3£585

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 11 March 2026.

Round-trip from

£440

One-way from

£381

Popular in

July

Cheapest in

January

Average price

£513
Iberia
  • Iberia
  • 10/4-24/4
  • 2 total stops
  • 35h 52m total
  • Dublin to Ontario
Search Deals
JetBlue
  • JetBlue
  • 2/6
  • 1 total stop
  • 17h 05m total
  • Dublin to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£69 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 11 March 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

Sat 16/5

11:40-22:09

1 stop18h 29m

Ontario

Tue 26/5

22:00-09:00

1 stop27h 00m

£489

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 20/5

11:40-22:09

1 stop18h 29m

Ontario

Wed 27/5

22:00-09:00

1 stop27h 00m

£489

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 25/3

06:00-22:34

2 stops23h 34m

Ontario

Sun 29/3

06:00-15:25

2 stops25h 25m

£583

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 2/6

11:35-22:46

1 stop19h 11m

Ontario

Mon 5/10

07:00-09:45

1 stop18h 45m

£592

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 2/6

11:35-22:46

1 stop19h 11m

Ontario

Tue 6/10

07:00-09:45

1 stop18h 45m

£592

DublinOntario

DUB - ONT

DUBONT

Dublin

Sat 25/4

11:00-18:33

1 stop15h 33m

Ontario

Sat 2/5

07:05-08:45

1 stop17h 40m

£654

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 20/3

09:45-21:00

1 stop18h 15m

Ontario

Sat 11/4

22:25-08:45

1 stop26h 20m

£739

DublinOntario

DUB - ONT

DUBONT

Dublin

Sun 5/4

11:35-22:31

1 stop18h 56m

Ontario

Sun 12/4

07:00-09:45

1 stop18h 45m

£751
Fastest return journey

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 29/6

11:00-18:15

1 stop15h 15m

Ontario

Mon 20/7

12:00-08:45

1 stop12h 45m

£768

DublinOntario

DUB - ONT

DUBONT

Dublin

Thu 23/7

14:15-23:11

2 stops16h 56m

Ontario

Thu 6/8

12:25-11:05

2 stops14h 40m

£1,189

Flights are sorted by cheapest return flights first.

Deals found on 8/3

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.

Cheapflights Insights

Everything you need to know about your flight from Dublin to Ontario

What is the cheapest month to book a flight from Dublin to Ontario?

Currently, February is the cheapest month in which you can book a flight from Dublin to Ontario (average of £342). Flying from Dublin to Ontario in July is currently the most expensive (average of £523). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 £489, JetBlue 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.

  • What is the cheapest month to book a flight from Dublin to Ontario?

    Currently, February is the cheapest month in which you can book a flight from Dublin to Ontario (average of £342). Flying from Dublin to Ontario in July is currently the most expensive (average of £523). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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