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Cork

$403+ Cheap flights from Illinois to Cork (ORK)

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ORK
Oct 19 — Oct 261
Sun 10/19
Sun 10/26
1 adult, Economy
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Cheap flight deals from Illinois to Cork

Keep the following information in mind while searching for Illinois to Cork flight deals. Data was last updated September 19, 2025.

Round-trip from

$488
(American Airlines)

One-way from

$403
(Delta)

Popular in

September

Cheapest in

March

Average price

$1,187
From Illinois to Cork
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One-way flight from Illinois to Cork
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Highest demand for flights based on searches. 2% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 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 Illinois to Cork

Cheapest flights from Illinois to Cork
Explore the most affordable flight options available from Illinois to Cork. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2025.

This American Airlines deal was found by Cheapflights users on 9/18. 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.
Sun 10/195:40 pmORD - ORK
1 stop11h 05mAmerican Airlines
Tue 11/411:55 amORK - ORD
1 stop12h 50mAmerican Airlines
Deal found 9/18$488
This KLM deal was found by Cheapflights users on 9/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:25 pmORD - ORK
2 stops16h 20mKLM
Tue 11/45:15 pmORK - ORD
1 stop27h 05mKLM
Deal found 9/18$498
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/54:25 pmORD - ORK
1 stop18h 20mKLM
Fri 11/146:00 amORK - ORD
1 stop14h 20mKLM
Deal found 9/16$504
This KLM deal was found by Cheapflights users on 9/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:25 pmORD - ORK
2 stops16h 20mKLM
Wed 11/56:00 amORK - ORD
2 stops16h 11mKLM
Deal found 9/18$508
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/51:26 pmORD - ORK
2 stops15h 19mDelta
Fri 11/146:00 amORK - ORD
1 stop14h 20mDelta
Deal found 9/16$509
This American Airlines deal was found by Cheapflights users on 9/18. 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.
Sun 10/127:15 pmORD - ORK
1 stop18h 35mAmerican Airlines
Tue 10/217:20 amORK - ORD
1 stop16h 55mAmerican Airlines
Deal found 9/18$528
This Delta deal was found by Cheapflights users on 9/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/126:59 pmORD - ORK
2 stops21h 31mDelta
Tue 10/216:00 amORK - ORD
1 stop14h 10mDelta
Deal found 9/18$538
This American Airlines deal was found by Cheapflights users on 9/18. 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.
Tue 10/287:25 pmORD - ORK
1 stop10h 45mAmerican Airlines
Tue 11/47:40 amORK - ORD
1 stop15h 20mAmerican Airlines
Deal found 9/18$541
This Delta deal was found by Cheapflights users on 9/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:25 pmORD - ORK
1 stop18h 20mDelta
Sun 12/75:15 pmORK - ORD
1 stop27h 05mDelta
Deal found 9/18$555
This Delta deal was found by Cheapflights users on 9/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/39:34 amMDW - ORK
2 stops25h 11mDelta
Sun 12/71:25 pmORK - MDW
2 stops34h 53mDelta
Deal found 9/17$569
This American Airlines deal was found by Cheapflights users on 9/18. 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.
Sun 11/302:08 pmSTL - ORK
2 stops15h 02mAmerican Airlines
Mon 12/157:40 amORK - STL
2 stops21h 26mAmerican Airlines
Deal found 9/18$570
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Tue 12/3011:41 amSTL - ORK
2 stops17h 29mAmerican Airlines
Wed 1/77:40 amORK - STL
2 stops21h 52mAmerican Airlines
Deal found 9/17$590

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 September 19, 2025.
Use the filters below to find and compare flights from Illinois to Cork that are best for you.

Fly from

Illinois

Fly to

Cork

Route

Depart

Return

Price

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Sun 10/19

5:40 pm-10:45 am

1 stop11h 05m

Cork

Tue 11/4

11:55 am-6:45 pm

1 stop12h 50m

$488

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Tue 10/28

1:25 pm-10:45 am

2 stops16h 20m

Cork

Wed 11/5

6:00 am-2:20 pm

1 stop14h 20m

$498

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Tue 10/28

1:25 pm-10:45 am

2 stops16h 20m

Cork

Tue 11/4

5:15 pm-2:20 pm

1 stop27h 05m

$498

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Wed 11/5

4:25 pm-4:45 pm

1 stop18h 20m

Cork

Fri 11/14

6:00 am-2:20 pm

1 stop14h 20m

$504

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Tue 10/28

4:56 pm-4:45 pm

2 stops18h 49m

Cork

Tue 11/4

6:00 am-9:19 pm

2 stops21h 19m

$508

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Wed 11/5

1:26 pm-10:45 am

2 stops15h 19m

Cork

Fri 11/14

6:00 am-2:20 pm

1 stop14h 20m

$509

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Sun 10/12

7:15 pm-7:50 pm

1 stop18h 35m

Cork

Tue 10/21

7:20 am-6:15 pm

1 stop16h 55m

$528

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Sun 10/12

6:59 pm-10:30 pm

2 stops21h 31m

Cork

Tue 10/21

6:00 am-2:10 pm

1 stop14h 10m

$538

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Tue 10/28

7:25 pm-11:10 am

1 stop10h 45m

Cork

Tue 11/4

7:40 am-5:00 pm

1 stop15h 20m

$541

ChicagoCork

MDW - ORK

MDWORK

Chicago Midway

Wed 12/3

9:34 am-12:55 pm

2 stops21h 21m

Cork

Sun 12/7

5:15 pm-6:18 pm

2 stops31h 03m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/18

Showing 1-10 of 35 results
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Best time to book a flight from Illinois to Cork

Have a flexible travel schedule? Discover the best time to fly to Cork from Illinois 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 Illinois to Cork

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Cork (average of $644). Flying from Illinois to Cork 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 IL to ORK?

Find hourly flight availability from Illinois to Cork. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 19, 2025.

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

Related info for your journey

Find useful and relevant information for your journey from Illinois to Cork. 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 into for flights to Cork from Illinois?

    For a flight from Illinois to Cork, you will be flying into Cork. Cork (ORK) is just 4.0 mi from the center of the city.

  • How long is the flight from Illinois to Cork?

    Airlines like American Airlines, KLM, and Delta fly from Illinois to Cork in about 11h 05m. The time it takes to get you to your destination can typically vary by up to 10h 16m. Illinois and Cork are separated by a distance of 3617 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Illinois to Cork?

    Most travelers choose Chicago O'Hare Intl - Cork, Lambert-St Louis - Cork or Chicago Midway - Cork when deciding on the best route from Illinois to Cork.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Illinois to Cork (average of $644). Flying from Illinois to Cork 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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Top airline flying from Illinois to Cork

Discover the top airline that operate flights from Illinois to Cork. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$546Average$731FlexibilityNo cancel feeOn-time71%

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