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$347+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LJU
may. 6 — may. 131
mar. 5/6
mar. 5/13
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 mayo 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$623
(FlightHub)

One-way from

$347
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,178
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. 32% potential increase in price ($442 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 May 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 mayo 1, 2025.

This FlightHub deal was found by Cheapflights users on 5/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/1811:55 amORD - LJU
1 stop23h 55mTurkish Airlines
mar. 11/259:20 amLJU - ORD
1 stop31h 50mTurkish Airlines
Deal found 5/1$573
This Mytrip deal was found by Cheapflights users on 5/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/1811:45 amORD - LJU
2 stops19h 20mMultiple Airlines
mar. 11/256:35 amLJU - ORD
2 stops20h 50mMultiple Airlines
Deal found 5/1$710
This oojo deal was found by Cheapflights users on 4/30. 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.
mar. 9/25:10 pmORD - LJU
2 stops16h 10mLOT
mar. 9/95:05 pmLJU - ORD
1 stop33h 35mLOT
Deal found 4/30$722
This Air Serbia deal was found by Cheapflights users on 4/30. 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.
sáb. 9/611:20 pmORD - LJU
1 stop32h 05mAir Serbia
sáb. 9/202:55 pmLJU - ORD
1 stop13h 05mAir Serbia
Deal found 4/30$727
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
dom. 8/102:20 pmORD - LJU
1 stop12h 45mSWISS
dom. 8/2410:50 amLJU - ORD
1 stop12h 05mSWISS
Deal found 4/30$753
This KLM deal was found by Cheapflights users on 5/1. 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.
mar. 11/112:00 pmMDW - LJU
2 stops14h 40mKLM
mar. 11/2512:25 pmLJU - MDW
2 stops16h 19mKLM
Deal found 5/1$817
This Delta deal was found by Cheapflights users on 4/30. 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.
dom. 8/101:09 pmMDW - LJU
2 stops15h 26mDelta
dom. 8/246:30 amLJU - MDW
2 stops18h 58mDelta
Deal found 4/30$832
This Lufthansa deal was found by Cheapflights users on 4/30. 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.
lun. 9/81:58 pmORD - LJU
2 stops22h 27mLufthansa
jue. 9/181:20 pmLJU - ORD
1 stop11h 55mLufthansa
Deal found 4/30$884
This Delta deal was found by Cheapflights users on 4/30. 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.
mié. 9/31:31 pmORD - LJU
2 stops15h 04mDelta
lun. 9/2212:20 pmLJU - ORD
1 stop33h 40mDelta
Deal found 4/30$899
This KLM deal was found by Cheapflights users on 4/30. 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.
dom. 8/171:35 pmORD - LJU
2 stops15h 00mKLM
dom. 8/319:10 amLJU - ORD
1 stop12h 00mKLM
Deal found 4/30$917
This British Airways deal was found by Cheapflights users on 4/30. 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.
lun. 9/89:15 pmORD - LJU
1 stop11h 55mBritish Airways
lun. 9/153:10 pmLJU - ORD
2 stops32h 04mBritish Airways
Deal found 4/30$923
This Air France deal was found by Cheapflights users on 4/30. 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.
vie. 9/51:35 pmORD - LJU
2 stops15h 00mAir France
jue. 9/1812:20 pmLJU - ORD
2 stops18h 33mAir France
Deal found 4/30$1,127

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 mayo 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

mié. 9/3

11:45 pm-8:30 am

1 stop25h 45m

Ljubljana Joze Pucnik

mié. 9/17

8:10 pm-9:40 am

1 stop20h 30m

$623

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

mar. 9/2

5:10 pm-4:20 pm

2 stops16h 10m

Ljubljana Joze Pucnik

mar. 9/9

5:05 pm-7:40 pm

1 stop33h 35m

$722

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

sáb. 9/6

11:20 pm-2:25 pm

1 stop32h 05m

Ljubljana Joze Pucnik

sáb. 9/20

2:55 pm-9:00 pm

1 stop13h 05m

$727

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

dom. 8/10

2:20 pm-10:05 am

1 stop12h 45m

Ljubljana Joze Pucnik

dom. 8/24

10:50 am-3:55 pm

1 stop12h 05m

$753

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

dom. 8/10

10:40 am-10:05 am

2 stops16h 25m

Ljubljana Joze Pucnik

dom. 8/24

6:40 am-8:16 pm

2 stops20h 36m

$761

ChicagoLjubljana

MDW - LJU

MDWLJU

Chicago Midway

dom. 8/10

1:09 pm-11:35 am

2 stops15h 26m

Ljubljana Joze Pucnik

dom. 8/24

6:30 am-6:28 pm

2 stops18h 58m

$832

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

lun. 9/8

1:58 pm-7:25 pm

2 stops22h 27m

Ljubljana Joze Pucnik

jue. 9/18

1:20 pm-6:15 pm

1 stop11h 55m

$884

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

mié. 9/3

1:31 pm-11:35 am

2 stops15h 04m

Ljubljana Joze Pucnik

lun. 9/22

12:20 pm-3:00 pm

1 stop33h 40m

$899

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

dom. 8/17

1:35 pm-11:35 am

2 stops15h 00m

Ljubljana Joze Pucnik

dom. 8/31

9:10 am-2:10 pm

1 stop12h 00m

$917

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

lun. 9/8

9:15 pm-4:10 pm

1 stop11h 55m

Ljubljana Joze Pucnik

lun. 9/15

3:10 pm-4:14 pm

2 stops32h 04m

$923

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 22 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 $1,515). 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 mayo 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 mayo 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
7,934 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

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
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

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
1,069 reviews
Delta
8.0
Very good
7,934 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

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
1,589 reviews
Delta
8.0
Very good
7,934 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

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.
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,934 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

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 $376. Users have also found prices from $510 and $527 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 $1,515). 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 6 airlines flying from Illinois to Slovenia

Discover the top 6 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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$531Average$709FlexibilityNo cancel feeOn-time77%
KLMCheapest$590Average$929FlexibilityNo cancel feeOn-time75%
SWISSCheapest$725Average$1,202FlexibilityNo cancel feeOn-time79%
Air SerbiaCheapest$783Average$979FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$795Average$1,086FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$857Average$1,056FlexibilityNo cancel feeOn-time70%

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