HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$535+ 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 12/26. Fares are subject to change and may not be available on all flights or dates of travel.
LJU — ORD
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Slovenia to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 December 9, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:35 pmLJU - ORD
1 stop21h 30mTurkish Airlines
Mon 12/228:20 pmORD - LJU
1 stop15h 20mTurkish Airlines
Deal found 12/8$1,188
This Booking.com deal was found by Cheapflights users on 12/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/153:10 pmLJU - ORD
2 stops28h 00mMultiple Airlines
Mon 12/226:00 pmORD - LJU
1 stop11h 40mMultiple Airlines
Deal found 12/8$1,267
This Air France deal was found by Cheapflights users on 12/8. 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 12/1512:50 pmLJU - MDW
2 stops17h 57mMultiple Airlines
Mon 12/2211:48 amMDW - LJU
2 stops17h 32mMultiple Airlines
Deal found 12/8$1,750

Find flight deals from Slovenia to Illinois

Keep the following information in mind while searching for Slovenia to Illinois flight deals. Data was last updated December 9, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$668
(oojo)

One-way from

$535
(FlightHub)

Popular in

September

Cheapest in

May

Average price

$748
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. 14% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 9, 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

Fri 4/3

1:30 pm-3:15 pm

1 stop32h 45m

Chicago O'Hare Intl

Wed 5/6

9:50 pm-12:45 pm

1 stop31h 55m

$668

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Tue 4/14

9:50 am-2:25 pm

1 stop35h 35m

Chicago O'Hare Intl

Sat 4/18

11:20 pm-8:05 pm

1 stop13h 45m

$724

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sat 1/24

5:10 pm-8:00 pm

1 stop33h 50m

Chicago O'Hare Intl

Wed 1/28

9:55 pm-1:05 pm

1 stop32h 10m

$724

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sat 1/24

7:35 pm-10:05 am

1 stop21h 30m

Chicago O'Hare Intl

Wed 1/28

11:50 am-6:40 pm

1 stop23h 50m

$735

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sat 1/24

1:40 pm-11:56 pm

2 stops17h 16m

Chicago O'Hare Intl

Wed 1/28

1:58 pm-11:40 am

2 stops14h 42m

$763

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sat 1/24

1:40 pm-11:56 pm

2 stops17h 16m

Chicago O'Hare Intl

Wed 1/28

9:55 am-11:40 am

2 stops18h 45m

$764

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Tue 4/14

5:05 pm-7:50 pm

1 stop33h 45m

Chicago O'Hare Intl

Sat 4/18

5:10 pm-12:45 pm

2 stops36h 35m

$781

LjubljanaChicago

LJU - MDW

LJUMDW

Ljubljana Joze Pucnik

Sat 1/24

1:40 pm-11:59 am

2 stops29h 19m

Chicago Midway

Wed 1/28

1:49 pm-11:40 am

2 stops14h 51m

$976

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Fri 12/26

7:35 pm-10:05 am

1 stop21h 30m

$535

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Fri 12/26

2:20 pm-5:05 pm

2 stops33h 45m

$651

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 13 results
1
2

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
No data available for this route at this time. Please check back soon.

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 December 9, 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
1,808 reviews

Entertainment

6.8

Crew

8.3

Comfort

7.4

Overall

7.5

Food

7.1

Boarding

7.7

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
1,808 reviews
SWISS
7.5
Good
1,808 reviews

Entertainment

6.8

Crew

8.3

Comfort

7.4

Overall

7.5

Food

7.1

Boarding

7.7

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
4,087 reviews
SWISS
7.5
Good
1,808 reviews

Entertainment

6.8

Crew

8.3

Comfort

7.4

Overall

7.5

Food

7.1

Boarding

7.7

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
7,619 reviews
SWISS
7.5
Good
1,808 reviews

Entertainment

6.8

Crew

8.3

Comfort

7.4

Overall

7.5

Food

7.1

Boarding

7.7

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 LOT, Air Serbia, and Delta fly from Slovenia to Illinois in about 29h 19m. The time it takes to get you to your destination can typically vary by up to 6h 16m. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Slovenia to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to John F Kennedy Intl flights
Charles de Gaulle to Newark flights
Orly to Newark flights
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Charles de Gaulle to LaGuardia flights
Orly to John F Kennedy Intl flights
Frankfurt to Newark flights
Frankfurt to John F Kennedy Intl flights
Charles de Gaulle to Miami flights
Gatwick to John F Kennedy Intl flights
Heathrow to LaGuardia flights
Charles de Gaulle to Los Angeles flights
Gatwick to Newark flights
London City to John F Kennedy Intl flights
Bruxelles-National to Newark flights
Frankfurt to LaGuardia flights
Stansted to John F Kennedy Intl flights
Malpensa to Newark flights
Gatwick to LaGuardia flights
Madrid to Newark flights
Barcelona-El Prat to John F Kennedy Intl flights
Madrid to John F Kennedy Intl flights
Vienna to Newark flights
Luton to John F Kennedy Intl flights
Frankfurt to Miami flights
Leonardo da Vinci/Fiumicino to Newark flights
Edinburgh to Boston flights
Vienna to Dallas/Fort Worth flights
Barcelona-El Prat to Newark flights
Bruxelles-National to John F Kennedy Intl flights
Munich to John F Kennedy Intl flights
London City to Newark flights
Stansted to Newark flights
Vienna to John F Kennedy Intl flights
Frederic Chopin to John F Kennedy Intl flights
Leonardo da Vinci/Fiumicino to John F Kennedy Intl flights
Berlin to Newark flights
Munich to Newark flights
Madrid to Miami flights
Luton to Newark flights
Frederic Chopin to Newark flights
Frankfurt to Dallas/Fort Worth flights
Oslo Gardermoen to Newark flights
Malpensa to John F Kennedy Intl flights
Orly to Los Angeles flights
Amsterdam to Newark flights
Heathrow to Boston flights
Zurich to John F Kennedy Intl flights

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 December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$622Average$729FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.