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$454+ Cheap flights from Slovenia to Illinois

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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
LJU — ORD
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 6, 2025.

This Lufthansa deal was found by Cheapflights users on 11/5. 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 12/46:35 amLJU - ORD
1 stop15h 45mLufthansa
Wed 12/106:00 pmORD - LJU
1 stop18h 30mLufthansa
Deal found 11/5$708
This Delta deal was found by Cheapflights users on 11/5. 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 12/1010:36 amORD - LJU
2 stops18h 04mDelta
Deal found 11/5$766
This Delta deal was found by Cheapflights users on 11/5. 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 12/101:14 pmMDW - LJU
2 stops16h 06mDelta
Deal found 11/5$772
This Mytrip deal was found by Cheapflights users on 11/5. 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 12/46:30 amLJU - ORD
2 stops17h 15mMultiple Airlines
Wed 12/107:20 pmORD - LJU
3 stops30h 05mMultiple Airlines
Deal found 11/5$844

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 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$708
(Lufthansa)

One-way from

$454
(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
One-way flight from Slovenia to Illinois
Search Deals
Highest demand for flights based on searches. 12% 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).
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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 6, 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

Wed 3/4

7:35 pm-10:05 am

1 stop21h 30m

Chicago O'Hare Intl

Sun 3/8

12:50 pm-6:40 pm

1 stop23h 50m

$764

LjubljanaChicago

LJU - MDW

LJUMDW

Ljubljana Joze Pucnik

Thu 12/4

12:50 pm-11:47 pm

2 stops17h 57m

Chicago Midway

Wed 12/10

1:14 pm-12:20 pm

2 stops16h 06m

$772

LjubljanaChicago

LJU - MDW

LJUMDW

Ljubljana Joze Pucnik

Wed 3/4

12:50 pm-5:37 pm

2 stops35h 47m

Chicago Midway

Sun 3/8

10:35 am-11:40 am

2 stops19h 05m

$800

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Wed 3/4

12:50 pm-8:43 pm

2 stops38h 53m

Chicago O'Hare Intl

Sun 3/8

5:25 pm-12:20 pm

1 stop12h 55m

$802

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Thu 12/4

6:30 am-4:45 pm

2 stops17h 15m

Chicago O'Hare Intl

Wed 12/10

7:20 pm-8:25 am

3 stops30h 05m

$844

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Fri 3/27

1:45 pm-9:00 pm

1 stop13h 15m

Chicago O'Hare Intl

Wed 4/8

9:40 pm-12:45 pm

1 stop32h 05m

$2,110

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Fri 3/27

1:45 pm-9:00 pm

1 stop13h 15m

Chicago O'Hare Intl

Thu 4/9

9:40 pm-12:45 pm

2 stops32h 05m

$2,314

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Thu 3/26

8:45 pm-4:00 pm

1 stop25h 15m

Chicago O'Hare Intl

Wed 4/8

4:30 pm-8:05 pm

1 stop20h 35m

$2,518

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Thu 3/26

7:35 pm-11:05 am

1 stop21h 30m

Chicago O'Hare Intl

Thu 4/9

7:50 pm-8:45 am

1 stop29h 55m

$2,905

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Mon 3/23

7:45 pm-3:55 pm

3 stops50h 10m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 17 results
1
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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 6, 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 6, 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
1,778 reviews

Food

7.1

Crew

8.2

Comfort

7.4

Entertainment

6.8

Overall

7.5

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
1,778 reviews
SWISS
7.5
Good
1,778 reviews

Food

7.1

Crew

8.2

Comfort

7.4

Entertainment

6.8

Overall

7.5

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
4,031 reviews
SWISS
7.5
Good
1,778 reviews

Food

7.1

Crew

8.2

Comfort

7.4

Entertainment

6.8

Overall

7.5

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
7,555 reviews
SWISS
7.5
Good
1,778 reviews

Food

7.1

Crew

8.2

Comfort

7.4

Entertainment

6.8

Overall

7.5

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 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 3h 33m. 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 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$622Average$729FlexibilityNo cancel feeOn-time76%

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