HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cork

$654+ Cheap flights from Ontario (ONT) to Cork (ORK)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ORK
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Cork with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Cork

Cheapest flights from Ontario to Cork
Explore the most affordable flight options available from Ontario to Cork. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This oojo deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:45 pmONT - ORK
2 stops18h 40mBritish Airways
Sun 12/215:35 pmORK - ONT
2 stops32h 41mBritish Airways
Deal found 12/16$4,137

Find flight deals from Ontario to Cork

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Cork (ORK). 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$654
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$1,264
Provider with most accurate pricing for Los Angeles-Cork flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Cork flights.
Search Deals
From Ontario to Cork
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($117 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Cork 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 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Ontario to Cork that are best for you.

Fly from

Ontario

Fly to

Cork

Route

Depart

Return

Price

OntarioCork

ONT - ORK

ONTORK

Ontario

Tue 2/17

3:19 pm-3:25 pm

2 stops16h 06m

Cork

Fri 2/27

7:40 am-6:39 pm

2 stops18h 59m

$654

OntarioCork

ONT - ORK

ONTORK

Ontario

Tue 2/17

3:19 pm-3:25 pm

2 stops16h 06m

Cork

Fri 2/27

11:55 am-11:58 pm

2 stops20h 03m

$827

OntarioCork

ONT - ORK

ONTORK

Ontario

Tue 2/17

5:00 am-3:25 pm

3 stops26h 25m

Cork

Fri 2/27

11:55 am-10:57 pm

3 stops19h 02m

$857

OntarioCork

ONT - ORK

ONTORK

Ontario

Wed 2/4

6:00 am-3:25 pm

2 stops25h 25m

Cork

Sun 2/8

7:40 am-10:48 pm

2 stops23h 08m

$889

OntarioCork

ONT - ORK

ONTORK

Ontario

Thu 3/19

10:56 am-11:10 am

2 stops17h 14m

Cork

Tue 3/24

5:35 pm-10:30 pm

2 stops35h 55m

$891

OntarioCork

ONT - ORK

ONTORK

Ontario

Sat 2/14

10:59 am-11:10 am

2 stops16h 11m

Cork

Wed 2/18

7:40 am-10:49 pm

2 stops23h 09m

$1,069

OntarioCork

ONT - ORK

ONTORK

Ontario

Fri 1/2

12:48 pm-3:25 pm

2 stops18h 37m

Cork

Fri 1/9

7:40 am-10:48 pm

2 stops23h 08m

$1,534

OntarioCork

ONT - ORK

ONTORK

Ontario

Thu 1/8

7:16 am-11:10 am

2 stops19h 54m

Cork

Thu 1/22

11:55 am-10:48 pm

2 stops18h 53m

$3,300

OntarioCork

ONT - ORK

ONTORK

Ontario

Tue 2/3

6:00 am-9:00 pm

2 stops31h 00m

Cork

Tue 2/17

11:55 am-10:49 pm

2 stops18h 54m

$4,480

OntarioCork

ONT - ORK

ONTORK

Ontario

Sun 3/1

2:44 pm-3:25 pm

2 stops16h 41m

Cork

Fri 3/6

4:05 pm-4:24 pm

2 stops32h 19m

$8,808

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Best time to book a flight from Ontario to Cork

Have a flexible travel schedule? Discover the best time to fly to Cork from Ontario with our price prediction graph.
Estimated round-trip 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 Ontario to Cork

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Cork (average of $469). Flying from Ontario to Cork in December is currently the most expensive (average of $905). 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 Ontario to Cork. 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 Ontario to Cork?

    For as low as $654, American Airlines can have you in Cork from Ontario in 16h 06m. There are 5121 mi between Ontario and Cork. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Ontario to Cork that include hotel bookings?

    Yes. In addition to deals on Ontario to Cork flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Cork?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Cork.

  • Can I find deals for business class flights from Ontario to Cork?

    Yes. Cheapflights offers flight deals from Ontario to Cork 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 Ontario to Cork?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Cork (average of $469). Flying from Ontario to Cork in December is currently the most expensive (average of $905). 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

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.

Alternative routes for Ontario to Cork

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Dublin flights
San Francisco to Dublin flights
San Diego to Dublin flights
Ontario to Dublin flights
Santa Ana to Dublin flights
Las Vegas to Dublin flights
Burbank to Dublin flights
San Jose to Dublin flights
Oakland to Dublin flights
Sacramento to Dublin flights
Santa Rosa to Dublin flights
Los Angeles to Shannon flights
Reno to Dublin flights
San Francisco to Cork flights
Fresno to Dublin flights
Los Angeles to Cork flights
Santa Ana to Shannon flights
Long Beach to Dublin flights
San Francisco to Shannon flights
San Diego to Shannon flights
San Jose to Cork flights
San Luis Obispo to Dublin flights
Las Vegas to Shannon flights
Ontario to Shannon flights
Santa Barbara to Dublin flights
Sacramento to Shannon flights
San Jose to Shannon flights
Oakland to Shannon flights
Oakland to Cork flights
San Jose to Knock flights
San Francisco to Knock flights
Palm Springs to Dublin flights
Reno to Shannon flights
Fresno to Shannon flights
Medford to Dublin flights
Las Vegas to Cork flights
Monterey to Dublin flights
San Diego to Cork flights
San Francisco to Donegal flights
Long Beach to Shannon flights
Redding to Dublin flights
Arcata to Dublin flights
Los Angeles to Milltown (Kerry) flights
Ontario to Milltown (Kerry) flights

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.