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$708+ Cheap flights from Slovenia to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
LJU — ORD
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Find flight deals from Slovenia to Illinois

Cheapest flights from Slovenia to Illinois
Explore the most affordable flight options available from Slovenia to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/10. 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 12/258:10 pmLJU - ORD
2 stops30h 55mLufthansa
Thu 1/13:20 pmORD - LJU
1 stop11h 35mLufthansa
Deal found 11/10$708
This Lufthansa deal was found by Cheapflights users on 11/12. 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.
Thu 12/46:30 amLJU - ORD
1 stop16h 50mMultiple Airlines
Wed 12/106:00 pmORD - LJU
1 stop11h 40mMultiple Airlines
Deal found 11/12$721
This oojo deal was found by Cheapflights users on 11/12. 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 12/279:20 amLJU - ORD
1 stop31h 45mTurkish Airlines
Sat 1/311:50 amORD - LJU
1 stop23h 50mTurkish Airlines
Deal found 11/12$741
This Delta deal was found by Cheapflights users on 11/12. 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.
Thu 12/412:50 pmLJU - MDW
2 stops17h 57mDelta
Wed 12/109:34 amMDW - LJU
2 stops19h 06mDelta
Deal found 11/12$771
This Delta deal was found by Cheapflights users on 11/12. 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.
Thu 12/412:50 pmLJU - ORD
2 stops18h 11mDelta
Wed 12/105:20 pmORD - LJU
1 stop11h 20mDelta
Deal found 11/12$771
This Air France deal was found by Cheapflights users on 11/10. 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.
Thu 12/412:50 pmLJU - ORD
1 stop32h 30mAir France
Wed 12/105:20 pmORD - LJU
1 stop11h 20mAir France
Deal found 11/10$840
This Expedia deal was found by Cheapflights users on 11/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:45 amLJU - ORD
2 stops32h 25mLufthansa
Sat 1/34:20 pmORD - LJU
1 stop10h 35mLufthansa
Deal found 11/12$911
This Mytrip deal was found by Cheapflights users on 11/10. 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 12/252:25 pmLJU - ORD
2 stops30h 35mMultiple Airlines
Thu 1/19:50 pmORD - LJU
3 stops28h 05mMultiple Airlines
Deal found 11/10$1,132

Cheap flight deals from Slovenia to Illinois

Keep the following information in mind while searching for Slovenia to Illinois flight deals. Data was last updated November 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$708
(Kiwi.com)

Popular in

September

Cheapest in

May
Provider with most accurate pricing for Ljubljana Joze Pucnik-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ljubljana Joze Pucnik-Chicago (CHI) flights.
Search Deals
From Slovenia to Illinois
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Slovenia to Illinois 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 November 12, 2025.
Use the filters below to find and compare flights from Slovenia to Illinois that are best for you.

Fly from

Slovenia

Fly to

Illinois

Route

Depart

Return

Price

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Thu 12/25

8:10 pm-8:05 pm

2 stops30h 55m

Chicago O'Hare Intl

Thu 1/1

3:20 pm-9:55 am

1 stop11h 35m

$708

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Thu 12/4

6:30 am-4:20 pm

1 stop16h 50m

Chicago O'Hare Intl

Wed 12/10

6:00 pm-12:40 pm

1 stop11h 40m

$721

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sat 12/27

9:20 am-10:05 am

1 stop31h 45m

Chicago O'Hare Intl

Sat 1/3

11:50 am-6:40 pm

1 stop23h 50m

$741

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Wed 3/4

9:20 am-6:25 pm

1 stop16h 05m

Chicago O'Hare Intl

Sun 3/8

12:50 pm-6:40 pm

1 stop23h 50m

$765

LjubljanaChicago

LJU - MDW

LJUMDW

Ljubljana Joze Pucnik

Thu 12/4

12:50 pm-11:47 pm

2 stops17h 57m

Chicago Midway

Wed 12/10

9:34 am-11:40 am

2 stops19h 06m

$771

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Thu 12/4

12:50 pm-12:01 am

2 stops18h 11m

Chicago O'Hare Intl

Wed 12/10

5:20 pm-11:40 am

1 stop11h 20m

$771

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Wed 3/4

12:50 pm-9:43 pm

2 stops39h 53m

Chicago O'Hare Intl

Sun 3/8

5:25 pm-12:20 pm

1 stop12h 55m

$801

LjubljanaChicago

LJU - MDW

LJUMDW

Ljubljana Joze Pucnik

Wed 3/4

12:50 pm-5:45 pm

2 stops35h 55m

Chicago Midway

Sun 3/8

1:00 pm-12:20 pm

2 stops41h 20m

$806

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Best time to book a flight from Slovenia to Illinois

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

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

Find hourly flight availability from Slovenia to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Slovenia to Illinois in the afternoon. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated November 12, 2025.
Peruse reviews from past customers who have flown with SWISS, Turkish Airlines, and Lufthansa from Slovenia to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,784 reviews

Comfort

7.4

Food

7.1

Entertainment

6.8

Overall

7.5

Crew

8.2

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.
SWISS
7.5
Good
1,784 reviews
SWISS
7.5
Good
1,784 reviews

Comfort

7.4

Food

7.1

Entertainment

6.8

Overall

7.5

Crew

8.2

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.
Turkish Airlines
7.3
Good
4,043 reviews
SWISS
7.5
Good
1,784 reviews

Comfort

7.4

Food

7.1

Entertainment

6.8

Overall

7.5

Crew

8.2

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.
Lufthansa
6.8
Okay
7,567 reviews
SWISS
7.5
Good
1,784 reviews

Comfort

7.4

Food

7.1

Entertainment

6.8

Overall

7.5

Crew

8.2

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Katerina,Sep 2025

GVA - ATH

Although the plane was half empty and the flight was late at night, we were not allowed to change seats/ use empty seats to get ourselves more comfortable, or get some proper sleep. It is really frustrating to see lack of flexibility in such a simple need.

Related info for your journey

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

    Airlines like Lufthansa, Turkish Airlines, and Delta fly from Slovenia to Illinois in about 17h 57m. The time it takes to get you to your destination can typically vary by up to 13h 48m. Slovenia and Illinois are separated by a distance of 4706 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Slovenia to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Slovenia to Illinois

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

Discover the top airline that operate flights from Slovenia to Illinois. 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 November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$622Average$729FlexibilityNo cancel feeOn-time76%

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