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Slovenia

$258+ Cheap flights from Illinois to Slovenia

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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LJU
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Illinois to Slovenia

Keep the following information in mind while searching for Illinois to Slovenia flight deals. Data was last updated August 20, 2025.

Round-trip from

$575
(Justfly.com)

One-way from

$258
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$992
From Illinois to Slovenia
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One-way flight from Illinois to Slovenia
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Highest demand for flights based on searches. 33% potential increase in price ($449 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($61 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Illinois to Slovenia

Cheapest flights from Illinois to Slovenia
Explore the most affordable flight options available from Illinois to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Justfly.com deal was found by Cheapflights users on 8/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2911:45 pmORD - LJU
1 stop25h 45mTurkish Airlines
Tue 10/148:10 pmLJU - ORD
1 stop20h 30mTurkish Airlines
Deal found 8/19$575
This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/268:20 pmORD - LJU
1 stop29h 05mTurkish Airlines
Fri 12/57:35 pmLJU - ORD
1 stop29h 50mTurkish Airlines
Deal found 8/18$577
This FlightHub deal was found by Cheapflights users on 8/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/411:50 amORD - LJU
1 stop23h 50mTurkish Airlines
Wed 11/127:35 pmLJU - ORD
1 stop29h 50mTurkish Airlines
Deal found 8/19$584
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1211:25 amORD - LJU
1 stop24h 50mTurkish Airlines
Sun 10/198:10 pmLJU - ORD
1 stop32h 50mTurkish Airlines
Deal found 8/18$603
This LOT deal was found by Cheapflights users on 8/18. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2910:55 pmORD - LJU
1 stop32h 10mLOT
Tue 11/45:10 pmLJU - ORD
1 stop33h 50mLOT
Deal found 8/18$618
This oojo deal was found by Cheapflights users on 8/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/611:50 amORD - LJU
1 stop23h 50mTurkish Airlines
Wed 12/179:20 amLJU - ORD
1 stop31h 45mTurkish Airlines
Deal found 8/19$621
This FlightHub deal was found by Cheapflights users on 8/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/811:45 pmORD - LJU
1 stop25h 45mTurkish Airlines
Mon 9/152:05 pmLJU - ORD
1 stop26h 35mTurkish Airlines
Deal found 8/19$622
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:45 pmORD - LJU
1 stop25h 45mTurkish Airlines
Wed 9/179:25 amLJU - ORD
1 stop19h 35mTurkish Airlines
Deal found 8/18$631
This CrystalTravel deal was found by Cheapflights users on 8/18. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1511:45 pmORD - LJU
1 stop25h 45mTurkish Airlines
Mon 9/222:05 pmLJU - ORD
1 stop26h 35mTurkish Airlines
Deal found 8/18$635
This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/177:50 pmORD - LJU
1 stop16h 25mTurkish Airlines
Fri 10/242:05 pmLJU - ORD
1 stop26h 35mTurkish Airlines
Deal found 8/18$649
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:20 pmORD - LJU
1 stop15h 20mTurkish Airlines
Wed 11/57:35 pmLJU - ORD
1 stop21h 30mTurkish Airlines
Deal found 8/18$653
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1211:25 amORD - LJU
1 stop14h 05mTurkish Airlines
Sat 10/182:05 pmLJU - ORD
1 stop34h 50mTurkish Airlines
Deal found 8/18$659

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Slovenia 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 August 20, 2025.
Use the filters below to find and compare flights from Illinois to Slovenia that are best for you.

Fly from

Illinois

Fly to

Slovenia

Route

Depart

Return

Price

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Tue 11/11

11:50 am-6:40 pm

1 stop23h 50m

Ljubljana Joze Pucnik

Tue 11/18

9:20 am-10:05 am

1 stop31h 45m

$575

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Mon 10/13

11:45 pm-7:15 pm

1 stop36h 30m

Ljubljana Joze Pucnik

Mon 10/20

2:05 pm-10:00 pm

1 stop14h 55m

$575

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Tue 11/4

11:50 am-6:40 pm

1 stop23h 50m

Ljubljana Joze Pucnik

Wed 11/12

7:35 pm-6:25 pm

1 stop29h 50m

$584

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sun 10/12

11:25 am-7:15 pm

1 stop24h 50m

Ljubljana Joze Pucnik

Sun 10/19

8:10 pm-10:00 pm

1 stop32h 50m

$603

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Mon 9/8

11:45 pm-1:10 pm

1 stop30h 25m

Ljubljana Joze Pucnik

Mon 9/15

2:05 pm-9:40 am

1 stop26h 35m

$622

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Thu 10/16

11:25 am-8:30 am

1 stop14h 05m

Ljubljana Joze Pucnik

Thu 10/23

8:10 pm-9:40 am

1 stop20h 30m

$631

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Wed 9/3

11:45 pm-8:30 am

1 stop25h 45m

Ljubljana Joze Pucnik

Wed 9/17

9:25 am-10:00 pm

1 stop19h 35m

$631

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Thu 10/16

11:25 am-1:10 pm

1 stop18h 45m

Ljubljana Joze Pucnik

Fri 10/24

8:10 pm-9:40 am

1 stop20h 30m

$631

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sat 10/18

11:45 pm-8:30 am

1 stop25h 45m

Ljubljana Joze Pucnik

Fri 10/24

8:10 pm-9:40 am

1 stop20h 30m

$631

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Mon 10/27

9:20 pm-6:40 pm

1 stop15h 20m

Ljubljana Joze Pucnik

Tue 11/4

9:20 am-6:25 pm

1 stop16h 05m

$631

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 38 results
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Best time to book a flight from Illinois to Slovenia

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

What is the cheapest time of day to fly from IL to SI?

Find hourly flight availability from Illinois to Slovenia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

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

Related info for your journey

Find useful and relevant information for your journey from Illinois to Slovenia. 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 Illinois to Slovenia?

    Airlines like Turkish Airlines, Delta, and Air France fly from Illinois to Slovenia in about 15h 52m. The time it takes to get you to your destination can typically vary by up to 7h 58m. Illinois and Slovenia are separated by a distance of 4706 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Illinois to Slovenia (average of $710). Flying from Illinois to Slovenia in June is currently the most expensive (average of $1,443). 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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Alternative routes for Illinois to Slovenia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Illinois to Slovenia

Discover the top 5 airlines that operate flights from Illinois to Slovenia. 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$531Average$724FlexibilityNo cancel feeOn-time77%
KLMCheapest$590Average$929FlexibilityNo cancel feeOn-time75%
SWISSCheapest$628Average$1,461FlexibilityNo cancel feeOn-time79%
Air SerbiaCheapest$746Average$852FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$800Average$1,025FlexibilityNo cancel feeOn-time76%

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