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 05m , Cork , which takes 13h 45m, Shannon , which takes 15h 00m, and Milltown (Kerry) , which takes 16h 05m.

How far is Ontario Airport from central Ontario?

The city centre of Ontario is 5 km from Ontario. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

€532 Cheap Flights to Ontario

ONT

Search hundreds of travel sites at once for deals on flights to Ontario

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Cheap flight deals to Ontario

Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

All Flight Deals

Recent return flight deals from Ireland to Ontario

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ireland to Ontario.

Discover the best prices and deals for you by selecting your travel dates.

Choose your dates

14:05 - 23:58DUB-ONT

17h 53m2 stops

16:25 - 19:35ONT-DUB

19h 10m2 stops

€532American Airlines

Find Deal

Sun, 9 Feb - Tue, 25 Feb

08:40 - 21:58DUB-ONT

21h 18m2 stops

16:25 - 17:25ONT-DUB

17h 00m2 stops

€541American Airlines

Find Deal

Thu, 30 Jan - Thu, 6 Feb

08:40 - 22:45DUB-ONT

22h 05m2 stops

15:04 - 17:05ONT-DUB

18h 01m2 stops

€542British Airways

Find Deal

Wed, 5 Feb - Mon, 10 Feb

14:05 - 23:58DUB-ONT

17h 53m2 stops

10:00 - 08:40ONT-DUB

14h 40m2 stops

€555American Airlines

Find Deal

Thu, 30 Jan - Thu, 6 Feb

09:00 - 20:29DUB-ONT

19h 29m2 stops

06:00 - 07:00ONT-DUB

17h 00m2 stops

€582United Airlines

Find Deal

Thu, 16 Jan - Mon, 27 Jan

05:55 - 22:32DUB-ONT

24h 37m2 stops

13:05 - 09:45ONT-DUB

12h 40m1 stop

€585Delta

Find Deal

Sun, 9 Feb - Tue, 25 Feb

12:40 - 20:03DUB-ONT

15h 23m1 stop

08:48 - 09:45ONT-DUB

16h 57m1 stop

€600Iberia

Find Deal

Wed, 9 Apr - Sat, 26 Apr

17:35 - 18:37ORK-ONT

33h 02m2 stops

16:25 - 21:00ONT-ORK

20h 35m2 stops

€674British Airways

Find Deal

Tue, 11 Feb - Tue, 18 Feb

09:00 - 21:57DUB-ONT

20h 57m2 stops

06:00 - 07:00ONT-DUB

17h 00m2 stops

€699United Airlines

Find Deal

Sun, 12 Jan - Sun, 19 Jan

12:40 - 20:03DUB-ONT

15h 23m1 stop

12:50 - 09:45ONT-DUB

12h 55m1 stop

€733Iberia

Find Deal

Fri, 2 May - Sat, 7 Jun

Flights to Ontario - Travel Insights & Trends

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.

Prices

The cheapest time of day to fly to Ontario is generally in the morning, when round-trip flights cost €698 on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is €698.

Cheapest flight	€522

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.

See more FAQs

High season is considered to be January, February and December. The cheapest month to fly from Ireland is January.
Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Direct departures

Ireland to Ontario

Monday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Tuesday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Wednesday

Aeromexico, Air Canada, Alaska Airlines, +21 more

Aeromexico, Air Canada, +22 more

Thursday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Friday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Saturday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Sunday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

See more direct flights

Direct returns

Ontario to Ireland

Monday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Tuesday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Wednesday

Aeromexico, Air Canada, Alaska Airlines, +21 more

Aeromexico, Air Canada, +22 more

Thursday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Friday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Saturday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Sunday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

See more direct flights

Book Cheap Ontario Plane Tickets

Recent return flight deals

These are the cheapest return flights to Ontario found on KAYAK in the last 72 hours.

9/2Sun

2 stopsAmerican Airlines

17h 53mDUB-ONT

25/2Tue

2 stopsAmerican Airlines

19h 10mONT-DUB

€532

30/1Thu

2 stopsAmerican Airlines

21h 18mDUB-ONT

6/2Thu

2 stopsAmerican Airlines

17h 00mONT-DUB

€541

5/2Wed

2 stopsBritish Airways

22h 05mDUB-ONT

10/2Mon

2 stopsBritish Airways

18h 01mONT-DUB

€542

30/1Thu

2 stopsAmerican Airlines

17h 53mDUB-ONT

6/2Thu

2 stopsAmerican Airlines

14h 40mONT-DUB

€555

16/1Thu

2 stopsUnited Airlines

19h 29mDUB-ONT

27/1Mon

2 stopsUnited Airlines

17h 00mONT-DUB

€582

9/2Sun

2 stopsDelta

24h 37mDUB-ONT

25/2Tue

1 stopDelta

12h 40mONT-DUB

€585

9/4Wed

1 stopIberia

15h 23mDUB-ONT

26/4Sat

1 stopIberia

16h 57mONT-DUB

€600

11/2Tue

2 stopsBritish Airways

33h 02mORK-ONT

18/2Tue

2 stopsBritish Airways

20h 35mONT-ORK

€674

12/1Sun

2 stopsUnited Airlines

20h 57mDUB-ONT

19/1Sun

2 stopsUnited Airlines

17h 00mONT-DUB

€699

2/5Fri

1 stopIberia

15h 23mDUB-ONT

7/6Sat

1 stopIberia

12h 55mONT-DUB

€733

Recent one-way flight deals

Only flying one-way? Below are some of the best deals for one-way flights to Ontario found on KAYAK in the last 72 hours.

7/4Mon

2 stops

18h 25mDUB-ONT

€522

26/5Mon

1 stopKLM

19h 41mDUB-ONT

€620

7/4Mon

1 stopKLM

19h 58mDUB-ONT

€623

28/3Fri

2 stopsDelta

24h 55mDUB-ONT

€630

20/4Sun

1 stopKLM

16h 42mDUB-ONT

€638

7/2Fri

2 stopsBritish Airways

22h 05mDUB-ONT

€686

7/2Fri

2 stopsIberia

19h 50mDUB-ONT

€715

31/1Fri

2 stopsIberia

19h 50mDUB-ONT

€717

7/2Fri

1 stop

19h 01mDUB-ONT

€767

26/5Mon

2 stopsBritish Airways

17h 07mDUB-ONT

€837

Last minute flights to Ontario

Last minute flight, train and bus deals

These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Ontario that are departing in the next 10 days.

22/12Sun

multi-stopKLM

16h 11mDUB-ONT

29/12Sun

multi-stopKLM

17h 33mONT-DUB

€1,415

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Ontario (ONT)

ONT

€522 Find cheap flights to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 7/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

Search hundreds of travel sites at once for deals on flights to Ontario

Cheap flight deals to Ontario

Recent return flight deals from Ireland to Ontario

Recent one-way flight deals from Ireland to Ontario

Recent last minute flight deals from Ireland to Ontario

All return flight deals from Ireland to Ontario

Flights to Ontario - Travel Insights & Trends

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.

What is the cheapest time of day to fly to Ontario?

The cheapest time of day to fly to Ontario is generally in the morning, when round-trip flights cost €698 on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is €698.

How long is the flight to Ontario?

Good to know

Cheapest flight

When to book flights to Ontario

FAQs - booking Ontario flights

How far is Ontario Airport from central Ontario?

What is the name of Ontario’s airport?

How does KAYAK find such low prices 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?

What is the Hacker Fare option on flights to Ontario?

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

Top tips for finding cheap flights to Ontario

Prefer to fly direct to Ontario?

Book Cheap Ontario Plane Tickets

Recent return flight deals

Search by stops

Search by airline

Search by price

Recent one-way flight deals

Search by stops

Search by airline

Search by price

Last minute flights to Ontario

Last minute flight, train and bus deals

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario