How long is the flight to Ontario?

The duration of your flight to Ontario depends on your departure and arrival airports. Obviously, any flights that include a stopover will also be longer. The most popular routes to Ontario on KAYAK are from Dublin , which takes 11h 00m , Cork , which takes 13h 35m, Shannon , which takes 16h 00m, and Milltown (Kerry) , which takes 16h 00m.

How long is the flight to Ontario?

The duration of your flight to Ontario depends on your departure and arrival airports. Obviously, any flights that include a stopover will also be longer. The most popular routes to Ontario on KAYAK are from Dublin , which takes 11h 00m , Cork , which takes 13h 35m, Shannon , which takes 16h 00m, and Milltown (Kerry) , which takes 16h 00m.

How far is Ontario Airport from central Ontario?

The city centre of Ontario is 5 km from Ontario.

What is the name of Ontario’s airport?

When flying to Ontario, you'll arrive at Ontario Airport (ONT). The airport is also known as Ontario or Ontario Intl.

How does KAYAK find such low prices on flights to Ontario?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Ontario.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Ontario?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

What is the Hacker Fare option on flights to Ontario?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ontario?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

€328 CHEAP FLIGHTS to Ontario in 2026

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Cheapest return fare

€608

JetBlue

Tue 25/8Mon 7/9

DUB - ONT • 1 stop

Cheapest one-way flight

€328

JetBlue

Wed 26/8

DUB - ONT • 1 stop

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We hope you love your trip to Ontario!

Flight Deals

Cheap Flights to Ontario

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Last minute

All Flight Deals

Recent return flight deals to Ontario

Tue, 25 Aug - Mon, 7 Sep

11:30 - 22:37

DUB

ONT

19h 07m

1 stop

23:59 - 09:00

ONT

DUB

25h 01m

1 stop

€608JetBlue

Thu, 27 Aug - Sat, 5 Sep

12:40 - 18:47

DUB

ONT

14h 07m

1 stop

12:33 - 09:45

ONT

DUB

13h 12m

1 stop

€619American Airlines

Thu, 27 Aug - Wed, 9 Sep

12:40 - 22:59

DUB

ONT

18h 19m

1 stop

12:37 - 09:45

ONT

DUB

13h 08m

1 stop

€620American Airlines

Fri, 28 Aug - Thu, 10 Sep

12:40 - 18:47

DUB

ONT

14h 07m

1 stop

10:25 - 09:45

ONT

DUB

15h 20m

1 stop

€621American Airlines

Sat, 29 Aug - Sun, 6 Sep

11:30 - 21:59

DUB

ONT

18h 29m

1 stop

23:59 - 09:00

ONT

DUB

25h 01m

1 stop

€627JetBlue

Thu, 27 Aug - Wed, 9 Sep

12:40 - 18:47

DUB

ONT

14h 07m

1 stop

12:37 - 09:45

ONT

DUB

13h 08m

1 stop

€649American Airlines

Sat, 14 Nov - Tue, 17 Nov

13:00 - 22:57

DUB

ONT

17h 57m

1 stop

07:00 - 07:15

ONT

DUB

16h 15m

1 stop

€668Iberia

Fri, 28 Aug - Fri, 4 Sep

12:40 - 22:59

DUB

ONT

18h 19m

1 stop

14:27 - 09:45

ONT

DUB

35h 18m

1 stop

€680Iberia

Tue, 8 Sep - Tue, 15 Sep

11:30 - 22:37

DUB

ONT

19h 07m

1 stop

22:39 - 09:00

ONT

DUB

26h 21m

1 stop

€683JetBlue

Tue, 8 Sep - Tue, 15 Sep

11:30 - 22:37

DUB

ONT

19h 07m

1 stop

22:39 - 09:00

ONT

DUB

26h 21m

1 stop

€699JetBlue

Booking Insights

KAYAK's insights & trends for flights to Ontario

Get data-powered insights and trends into flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

Airlines

What are the most popular airlines flying to Ontario?

The most popular airline among KAYAK users flying to Ontario is Aer Lingus, followed by British Airways and Iberia.

Cheapest flight	€328

Flight from Dublin to Ontario

When to book flights to Ontario

Are your dates flexible? Find out the best times to travel to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Ontario based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

How far is Ontario Airport from central Ontario?
The city centre of Ontario is 5 km from Ontario.
What is the name of Ontario’s airport?
When flying to Ontario, you'll arrive at Ontario Airport (ONT). The airport is also known as Ontario or Ontario Intl.
How does KAYAK find such low prices on flights to Ontario?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Ontario.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Ontario?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.
What is the Hacker Fare option on flights to Ontario?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ontario?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Everything you need to know for your flight to Ontario

Airports

Cabin class

Complete your trip

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Ontario

Ontario (ONT)

ONT

€328 Find Cheap Flights to Ontario – Compare and Save

Everything you should know

Cheap Flights to Ontario

Recent return flight deals to Ontario

Recent one-way flight deals to Ontario

Recent last minute flight deals to Ontario

All return flight deals to Ontario

KAYAK's insights & trends for flights to Ontario

What are the most popular airlines flying to Ontario?

How long is the flight to Ontario?

Good to know – Book Cheap Ontario Plane Tickets

Cheapest flight

When to book flights to Ontario

FAQs - booking Ontario flights

Top tips for finding cheap flights to Ontario

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Cabin class types available on flights to Ontario

Complete your trip to Ontario with a hotel stay or car hire

Flights to other popular destinations

Flights from local origins to Ontario

Choose which airport to fly into in Ontario

Find deals for your return flight