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Slovenia

$376+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LJU
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
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 June 16, 2025.

Round-trip from

$719
(SWISS)

One-way from

$395
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,568
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. 32% potential increase in price ($443 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 16, 2025.

This FlightHub deal was found by Cheapflights users on 6/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/135:10 pmORD - LJU
1 stop16h 10mLOT
Tue 11/45:10 pmLJU - ORD
1 stop33h 50mLOT
Deal found 6/16$634
This Air Serbia deal was found by Cheapflights users on 6/16. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1111:20 pmORD - LJU
1 stop32h 05mAir Serbia
Fri 11/72:55 pmLJU - ORD
1 stop32h 45mAir Serbia
Deal found 6/16$710
This FlightHub deal was found by Cheapflights users on 6/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/143:35 pmORD - LJU
1 stop14h 05mLufthansa
Wed 11/56:35 amLJU - ORD
1 stop13h 35mLufthansa
Deal found 6/16$713
This British Airways deal was found by Cheapflights users on 6/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:55 pmORD - LJU
1 stop17h 55mBritish Airways
Wed 9/176:00 pmLJU - ORD
1 stop26h 55mBritish Airways
Deal found 6/16$727
This CrystalTravel deal was found by Cheapflights users on 6/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1711:25 amORD - LJU
1 stop14h 05mTurkish Airlines
Wed 11/199:20 amLJU - ORD
1 stop16h 05mTurkish Airlines
Deal found 6/15$737
This Delta deal was found by Cheapflights users on 6/16. 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.
Mon 10/135:10 pmORD - LJU
1 stop11h 25mDelta
Fri 11/712:25 pmLJU - ORD
2 stops16h 21mDelta
Deal found 6/16$739
This FlightHub deal was found by Cheapflights users on 6/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2110:30 pmORD - LJU
2 stops13h 55mMultiple Airlines
Thu 8/2110:50 amLJU - ORD
1 stop12h 05mMultiple Airlines
Deal found 6/15$747
This Air France deal was found by Cheapflights users on 6/15. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/212:00 pmORD - LJU
2 stops14h 35mAir France
Thu 8/2112:20 pmLJU - ORD
2 stops18h 36mAir France
Deal found 6/15$818
This KLM deal was found by Cheapflights users on 6/16. 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.
Sun 8/242:00 pmORD - LJU
2 stops14h 35mKLM
Mon 9/112:35 pmLJU - ORD
1 stop32h 35mKLM
Deal found 6/16$838
This Ovago deal was found by Cheapflights users on 6/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/67:05 pmORD - LJU
1 stop32h 00mSWISS
Fri 8/1510:50 amLJU - ORD
1 stop12h 05mSWISS
Deal found 6/16$870
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/309:25 amMDW - LJU
2 stops19h 10mDelta
Wed 8/67:40 amLJU - MDW
2 stops21h 02mDelta
Deal found 6/15$1,104
This Air France deal was found by Cheapflights users on 6/14. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/221:00 pmMDW - LJU
2 stops15h 35mAir France
Thu 9/2512:20 pmLJU - MDW
2 stops16h 24mAir France
Deal found 6/14$1,263

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 June 16, 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

Mon 10/13

5:10 pm-4:20 pm

1 stop16h 10m

Ljubljana Joze Pucnik

Tue 11/4

5:10 pm-8:00 pm

1 stop33h 50m

$634

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sat 10/11

11:20 pm-2:25 pm

1 stop32h 05m

Ljubljana Joze Pucnik

Fri 11/7

2:55 pm-4:40 pm

1 stop32h 45m

$710

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Tue 10/14

3:35 pm-12:40 pm

1 stop14h 05m

Ljubljana Joze Pucnik

Wed 11/5

6:35 am-1:10 pm

1 stop13h 35m

$713

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Wed 9/3

4:55 pm-5:50 pm

1 stop17h 55m

Ljubljana Joze Pucnik

Wed 9/17

6:00 pm-1:55 pm

1 stop26h 55m

$727

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Wed 9/17

11:25 am-8:30 am

1 stop14h 05m

Ljubljana Joze Pucnik

Wed 11/19

9:20 am-6:25 pm

1 stop16h 05m

$737

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Mon 10/13

5:10 pm-11:35 am

1 stop11h 25m

Ljubljana Joze Pucnik

Fri 11/7

12:25 pm-9:46 pm

2 stops16h 21m

$739

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Mon 7/21

10:30 pm-7:25 pm

2 stops13h 55m

Ljubljana Joze Pucnik

Thu 8/21

10:50 am-3:55 pm

1 stop12h 05m

$747

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Mon 7/21

2:00 pm-11:35 am

2 stops14h 35m

Ljubljana Joze Pucnik

Thu 8/21

12:20 pm-11:56 pm

2 stops18h 36m

$818

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sun 8/24

2:00 pm-11:35 am

2 stops14h 35m

Ljubljana Joze Pucnik

Mon 9/1

12:35 pm-2:10 pm

1 stop32h 35m

$838

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Wed 8/6

7:05 pm-10:05 am

1 stop32h 00m

Ljubljana Joze Pucnik

Fri 8/15

10:50 am-3:55 pm

1 stop12h 05m

$870

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 24 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 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 $1,460). 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 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 June 16, 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.

Rainfall in Slovenia by month

Plan your trip to Slovenia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Slovenia ranges from 1.6 - 2.8 inches per month. October is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Slovenia when rainfall is around 1.6 in.

Temperature in Slovenia by month

Plan your trip to Slovenia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Slovenia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Slovenia

Get insights into the airlines that provide service to Slovenia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Slovenia. Reviews last updated June 16, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and LOT from Illinois to Slovenia to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,363 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LOT
7.6
Good
1,081 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,466 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,628 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from Illinois to Slovenia one-way?

    For one-way options, check prices for Air Serbia. According to our data, you can fly for as low as $461. Users have also found prices from $474 and $476 on British Airways and Turkish Airlines, respectively.

  • 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 $1,460). 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$531Average$743FlexibilityNo cancel feeOn-time77%
KLMCheapest$590Average$929FlexibilityNo cancel feeOn-time75%
SWISSCheapest$628Average$1,277FlexibilityNo cancel feeOn-time79%
Air SerbiaCheapest$746Average$852FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$795Average$1,067FlexibilityNo cancel feeOn-time76%

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