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Slovenia

$444+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LJU
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
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 April 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$603
(FlightHub)

One-way from

$444
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$881
Provider with most accurate pricing for Chicago (CHI)-Ljubljana Joze Pucnik flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Ljubljana Joze Pucnik flights.
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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. 29% potential increase in price ($385 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($55 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 1, 2025.

This FlightHub deal was found by Cheapflights users on 3/31. 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 stop30h 25mTurkish Airlines
Fri 9/198:10 pmLJU - ORD
1 stop20h 30mTurkish Airlines
Deal found 3/31$603
This oojo deal was found by Cheapflights users on 3/31. 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.
Sun 4/203:51 pmORD - LJU
2 stops15h 24mBritish Airways
Mon 4/283:10 pmLJU - ORD
2 stops29h 20mBritish Airways
Deal found 3/31$826
This oojo deal was found by Cheapflights users on 3/31. 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.
Thu 5/85:10 pmORD - LJU
2 stops16h 10mLOT
Thu 5/155:05 pmLJU - ORD
1 stop33h 35mLOT
Deal found 3/31$914
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Thu 5/1511:25 amORD - LJU
1 stop24h 50mMultiple Airlines
Thu 5/226:30 pmLJU - ORD
2 stops43h 57mMultiple Airlines
Deal found 3/31$952
This SWISS deal was found by Cheapflights users on 3/31. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/102:53 pmORD - LJU
2 stops20h 42mSWISS
Thu 9/187:20 pmLJU - ORD
1 stop27h 35mSWISS
Deal found 3/31$1,078
This Delta deal was found by Cheapflights users on 3/31. 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 9/77:00 amORD - LJU
2 stops21h 35mDelta
Wed 9/1712:35 pmLJU - ORD
1 stop32h 35mDelta
Deal found 3/31$1,082
This KLM deal was found by Cheapflights users on 4/1. 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 5/63:02 pmMDW - LJU
2 stops13h 33mKLM
Tue 5/139:05 amLJU - MDW
2 stops15h 40mKLM
Deal found 4/1$1,090
This Delta deal was found by Cheapflights users on 4/1. 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 4/62:57 pmMDW - LJU
2 stops13h 38mDelta
Tue 4/2212:35 pmLJU - MDW
2 stops27h 32mDelta
Deal found 4/1$1,092
This Lufthansa deal was found by Cheapflights users on 3/31. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1810:30 pmORD - LJU
1 stop16h 55mLufthansa
Fri 9/126:40 amLJU - ORD
2 stops18h 41mLufthansa
Deal found 3/31$1,094
This KLM deal was found by Cheapflights users on 3/31. 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 9/72:10 pmORD - LJU
2 stops14h 55mKLM
Sat 9/2012:35 pmLJU - ORD
1 stop32h 35mKLM
Deal found 3/31$1,147
This Aeromexico deal was found by Cheapflights users on 4/1. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/131:15 pmMDW - LJU
2 stops15h 20mAir France
Sat 5/1012:35 pmLJU - MDW
2 stops36h 10mAir France
Deal found 4/1$1,204
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/159:40 amMDW - LJU
3 stops16h 55mMultiple Airlines
Thu 5/221:20 pmLJU - MDW
3 stops34h 34mMultiple Airlines
Deal found 3/31$1,270

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 April 1, 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 9/8

11:45 pm-1:10 pm

1 stop30h 25m

Ljubljana Joze Pucnik

Fri 9/19

8:10 pm-9:40 am

1 stop20h 30m

$603

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sun 4/20

3:51 pm-2:15 pm

2 stops15h 24m

Ljubljana Joze Pucnik

Mon 4/28

3:10 pm-1:30 pm

2 stops29h 20m

$826

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Thu 5/8

5:10 pm-4:20 pm

2 stops16h 10m

Ljubljana Joze Pucnik

Thu 5/15

5:05 pm-7:40 pm

1 stop33h 35m

$914

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Thu 5/1

7:25 pm-12:35 pm

3 stops34h 10m

Ljubljana Joze Pucnik

Wed 5/7

1:20 pm-6:15 pm

3 stops35h 55m

$951

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Wed 9/10

1:58 pm-6:35 pm

2 stops21h 37m

Ljubljana Joze Pucnik

Fri 9/19

10:50 am-3:55 pm

1 stop12h 05m

$1,078

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sun 9/7

7:00 am-11:35 am

2 stops21h 35m

Ljubljana Joze Pucnik

Wed 9/17

12:35 pm-2:10 pm

1 stop32h 35m

$1,082

ChicagoLjubljana

MDW - LJU

MDWLJU

Chicago Midway

Tue 5/6

3:02 pm-11:35 am

2 stops13h 33m

Ljubljana Joze Pucnik

Tue 5/13

9:05 am-5:45 pm

2 stops15h 40m

$1,090

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sun 5/18

10:30 pm-10:25 pm

1 stop16h 55m

Ljubljana Joze Pucnik

Tue 9/16

6:20 am-6:21 pm

2 stops19h 01m

$1,094

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sun 9/7

2:10 pm-12:05 pm

2 stops14h 55m

Ljubljana Joze Pucnik

Sat 9/20

12:35 pm-2:10 pm

1 stop32h 35m

$1,147

ChicagoLjubljana

MDW - LJU

MDWLJU

Chicago Midway

Sun 4/13

1:15 pm-11:35 am

2 stops15h 20m

Ljubljana Joze Pucnik

Sat 5/10

12:35 pm-5:45 pm

2 stops36h 10m

$1,204

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

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 $1,520). 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 April 1, 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 April 1, 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
7,899 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LOT
7.6
Good
1,065 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 $622. Users have also found prices from $713 and $753 on Turkish Airlines and British Airways, 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 $1,520). 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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$531Average$704FlexibilityNo cancel feeOn-time77%
KLMCheapest$590Average$929FlexibilityNo cancel feeOn-time75%
SWISSCheapest$725Average$1,165FlexibilityNo cancel feeOn-time79%
Air SerbiaCheapest$783Average$979FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$795Average$1,086FlexibilityNo cancel feeOn-time76%

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