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Limerick

$438+ Cheap flights from Ontario (ONT) to Limerick, Ireland

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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ORK
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Ontario to Limerick

Keep the following information in mind while searching for Ontario to Limerick flight deals. Data was last updated September 17, 2025.

Round-trip from

$651
(United Airlines)

One-way from

$438
(United Airlines)

Popular in

December

Cheapest in

March

Average price

$787
From Ontario to Limerick
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One-way flight from Ontario to Limerick
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Highest demand for flights based on searches. 19% potential increase in price ($223 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($78 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Limerick

Cheapest flights from Ontario to Limerick
Explore the most affordable flight options available from Ontario to Limerick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/309:36 amONT - SNN
2 stops16h 39mUnited Airlines
Tue 10/712:30 pmSNN - ONT
2 stops16h 54mUnited Airlines
Deal found 9/16$651
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:36 amONT - SNN
2 stops16h 39mUnited Airlines
Thu 10/2312:30 pmSNN - ONT
2 stops18h 22mUnited Airlines
Deal found 9/16$671
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/119:36 amONT - SNN
2 stops16h 39mUnited Airlines
Mon 10/2012:30 pmSNN - ONT
2 stops16h 54mUnited Airlines
Deal found 9/15$672
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:00 amONT - SNN
1 stop16h 30mUnited Airlines
Sun 9/219:30 amSNN - ONT
1 stop21h 00mUnited Airlines
Deal found 9/15$918
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:04 amONT - SNN
2 stops17h 26mUnited Airlines
Wed 9/249:30 amSNN - ONT
2 stops15h 59mUnited Airlines
Deal found 9/16$923

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Limerick 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 September 17, 2025.
Use the filters below to find and compare flights from Ontario to Limerick that are best for you.

Fly from

Ontario

Fly to

Limerick

Route

Depart

Return

Price

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Tue 9/30

9:36 am-10:15 am

2 stops16h 39m

Shannon

Tue 10/7

12:30 pm-9:24 pm

2 stops16h 54m

$651

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Thu 10/16

9:36 am-10:15 am

2 stops16h 39m

Shannon

Thu 10/23

12:30 pm-10:52 pm

2 stops18h 22m

$671

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sat 10/11

9:36 am-10:15 am

2 stops16h 39m

Shannon

Mon 10/20

12:30 pm-9:24 pm

2 stops16h 54m

$672

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sun 2/1

5:03 pm-4:45 pm

2 stops15h 42m

Shannon

Sun 2/8

7:50 am-7:47 pm

2 stops19h 57m

$1,469

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Fri 10/17

6:00 am-10:15 am

2 stops20h 15m

$438

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Thu 1/8

10:57 am-11:30 am

2 stops16h 33m

$813

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Ontario to Limerick

Have a flexible travel schedule? Discover the best time to fly to Limerick 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 Limerick

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

Currently, November is the cheapest month in which you can book a flight from Ontario to Limerick (average of $644). Flying from Ontario to Limerick in June is currently the most expensive (average of $1,277). 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.

What is the cheapest time of day to fly from ONT to LR9?

Find hourly flight availability from Ontario to Limerick. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Limerick as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Limerick. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Limerick?

    For a flight from Ontario to Limerick, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 outbound flights to Limerick per day. 0 airlines have flights to Limerick from Ontario on a regular basis.

  • How long is the flight from Ontario to Limerick?

    Airlines like United Airlines fly from Ontario to Limerick in about 16h 39m. The time it takes to get you to your destination can typically vary by up to . Ontario and Limerick are separated by a distance of 5072 mi.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Ontario to Limerick (average of $644). Flying from Ontario to Limerick in June is currently the most expensive (average of $1,277). 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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