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Limerick

$683+ Cheap flights from Ontario (ONT) to Limerick, Ireland

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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ORK
Dec 22 — Dec 291
Mon 12/22
Mon 12/29
1 adult, Economy
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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 November 22, 2025.

This oojo deal was found by Cheapflights users on 11/20. 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.
Tue 12/23:19 pmONT - SNN
2 stops17h 26mBritish Airways
Mon 12/85:30 pmSNN - ONT
2 stops32h 47mBritish Airways
Deal found 11/20$904
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:49 pmONT - SNN
2 stops19h 56mAmerican Airlines
Thu 12/117:50 amSNN - ONT
2 stops22h 29mAmerican Airlines
Deal found 11/19$934
This British Airways deal was found by Cheapflights users on 11/19. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:49 pmONT - SNN
2 stops22h 36mBritish Airways
Mon 12/85:30 pmSNN - ONT
2 stops36h 58mBritish Airways
Deal found 11/19$936
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:49 pmONT - SNN
2 stops19h 56mAmerican Airlines
Fri 12/122:45 pmSNN - ONT
2 stops55h 14mAmerican Airlines
Deal found 11/19$951
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:49 pmONT - SNN
2 stops19h 56mAmerican Airlines
Sun 12/77:50 amSNN - ONT
2 stops46h 38mAmerican Airlines
Deal found 11/19$952
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:49 pmONT - SNN
2 stops19h 56mAmerican Airlines
Sat 12/132:00 pmSNN - ONT
2 stops34h 02mAmerican Airlines
Deal found 11/19$969
This oojo deal was found by Cheapflights users on 11/21. 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 12/192:42 pmONT - SNN
2 stops17h 03mBritish Airways
Thu 1/88:05 pmSNN - ONT
2 stops29h 17mBritish Airways
Deal found 11/21$2,077
This oojo deal was found by Cheapflights users on 11/21. 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 12/192:42 pmONT - SNN
2 stops17h 03mBritish Airways
Fri 12/267:50 amSNN - ONT
2 stops23h 56mBritish Airways
Deal found 11/21$2,188
This oojo deal was found by Cheapflights users on 11/21. 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 12/192:42 pmONT - SNN
2 stops17h 03mBritish Airways
Tue 1/67:50 amSNN - ONT
2 stops22h 58mBritish Airways
Deal found 11/21$2,404
This Booking.com deal was found by Cheapflights users on 11/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1610:47 amONT - SNN
2 stops16h 43mBritish Airways
Fri 1/97:50 amSNN - ONT
2 stops22h 58mBritish Airways
Deal found 11/21$2,566

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 November 22, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$683
(American Airlines)

Popular in

December

Cheapest in

March

Average price

$894
Provider with most accurate pricing for Los Angeles-Shannon flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Shannon flights.
Search Deals
From Ontario to Limerick
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($272 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($78 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 22, 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

Thu 2/19

2:47 pm-4:45 pm

2 stops17h 58m

Shannon

Mon 2/23

7:50 am-10:31 pm

2 stops22h 41m

$683

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Tue 12/2

10:47 am-11:30 am

2 stops16h 43m

Shannon

Mon 12/8

8:05 pm-6:17 pm

2 stops30h 12m

$904

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Fri 12/19

2:42 pm-3:45 pm

2 stops17h 03m

Shannon

Thu 1/8

8:05 pm-5:22 pm

2 stops29h 17m

$2,077

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Fri 12/19

2:42 pm-3:45 pm

2 stops17h 03m

Shannon

Fri 12/26

7:50 am-11:46 pm

2 stops23h 56m

$2,188

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Fri 12/19

2:42 pm-3:45 pm

2 stops17h 03m

Shannon

Tue 1/6

7:50 am-10:48 pm

2 stops22h 58m

$2,404

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Tue 12/16

10:47 am-11:30 am

2 stops16h 43m

Shannon

Fri 1/9

7:50 am-10:48 pm

2 stops22h 58m

$2,566

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sun 12/21

2:42 pm-4:45 pm

2 stops18h 03m

$1,619

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

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, October is the cheapest month in which you can book a flight from Ontario to Limerick (average of $471). Flying from Ontario to Limerick in June is currently the most expensive (average of $761). 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 November 22, 2025.

It’s optimal to fly from Ontario to Limerick at noon. By choosing this option you can save up to 57% on the cost of your flight, compared to a flight in the afternoon.

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 American Airlines and British Airways fly from Ontario to Limerick in about 16h 43m. The time it takes to get you to your destination can typically vary by up to 1h 15m. Ontario and Limerick are separated by a distance of 5072 mi. 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 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, October is the cheapest month in which you can book a flight from Ontario to Limerick (average of $471). Flying from Ontario to Limerick in June is currently the most expensive (average of $761). 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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