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$537+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
LJU — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 September 11, 2025.

Round-trip from

$623
(LOT)

One-way from

$537
(FlightHub)

Popular in

September

Cheapest in

November

Average price

$1,329
From Slovenia to Illinois
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One-way flight from Slovenia to Illinois
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Highest demand for flights based on searches. 19% potential increase in price ($191 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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.
Sat 11/2212:50 pmLJU - ORD
1 stop32h 30mDelta
Sat 11/2911:03 amORD - LJU
2 stops17h 37mDelta
Deal found 9/11$679
This Air France deal was found by Cheapflights users on 9/10. 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.
Wed 10/1512:35 pmLJU - ORD
1 stop32h 35mAir France
Tue 1/135:20 pmORD - LJU
1 stop11h 20mAir France
Deal found 9/10$680
This KLM deal was found by Cheapflights users on 9/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1512:35 pmLJU - ORD
1 stop32h 35mKLM
Tue 1/131:35 pmORD - LJU
2 stops15h 05mKLM
Deal found 9/10$685
This KLM deal was found by Cheapflights users on 9/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:35 pmLJU - ORD
1 stop32h 35mKLM
Mon 1/124:25 pmORD - LJU
1 stop12h 55mKLM
Deal found 9/10$687
This KLM deal was found by Cheapflights users on 9/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:15 amLJU - ORD
2 stops15h 59mKLM
Sun 1/1112:15 pmORD - LJU
2 stops16h 25mKLM
Deal found 9/10$695
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/252:55 pmLJU - ORD
1 stop13h 05mAir Serbia
Sat 11/15:30 pmORD - LJU
1 stop20h 25mAir Serbia
Deal found 9/10$764
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:00 pmLJU - ORD
2 stops23h 55mLufthansa
Tue 1/139:50 pmORD - LJU
2 stops17h 20mLufthansa
Deal found 9/10$778
This Brussels Airlines deal was found by Cheapflights users on 9/10. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:35 pmLJU - ORD
2 stops29h 45mBrussels Airlines
Mon 1/121:55 pmORD - LJU
3 stops42h 50mBrussels Airlines
Deal found 9/10$792
This LOT deal was found by Cheapflights users on 9/11. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/201:20 pmLJU - ORD
1 stop32h 50mLOT
Sun 9/282:05 pmORD - LJU
1 stop15h 30mLOT
Deal found 9/11$834
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2012:35 pmLJU - MDW
2 stops30h 13mDelta
Sun 9/289:35 amMDW - LJU
2 stops19h 00mDelta
Deal found 9/10$1,049
This KLM deal was found by Cheapflights users on 9/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2512:20 pmLJU - MDW
2 stops16h 54mKLM
Sat 11/13:00 pmMDW - LJU
2 stops14h 40mKLM
Deal found 9/10$1,601

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 September 11, 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

Sat 11/22

12:50 pm-2:20 pm

1 stop32h 30m

Chicago O'Hare Intl

Sat 11/29

5:20 pm-11:40 am

1 stop11h 20m

$679

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Thu 10/16

12:35 pm-2:10 pm

1 stop32h 35m

Chicago O'Hare Intl

Sun 1/11

5:20 pm-11:40 am

1 stop11h 20m

$680

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Thu 10/16

12:35 pm-2:10 pm

1 stop32h 35m

Chicago O'Hare Intl

Mon 1/12

4:25 pm-12:20 pm

1 stop12h 55m

$687

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Thu 10/16

9:15 am-6:14 pm

2 stops15h 59m

Chicago O'Hare Intl

Sun 1/11

12:15 pm-11:40 am

2 stops16h 25m

$695

LjubljanaChicago

LJU - MDW

LJUMDW

Ljubljana Joze Pucnik

Wed 2/18

12:50 pm-6:34 pm

2 stops36h 44m

Chicago Midway

Sun 2/22

1:00 pm-11:40 am

2 stops15h 40m

$717

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Wed 3/4

12:50 pm-11:54 pm

2 stops18h 04m

Chicago O'Hare Intl

Sun 3/8

1:30 pm-12:20 pm

2 stops16h 50m

$725

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sat 10/25

2:55 pm-9:00 pm

1 stop13h 05m

Chicago O'Hare Intl

Sat 11/1

5:30 pm-7:55 pm

1 stop20h 25m

$764

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Wed 3/4

12:50 pm-4:37 pm

2 stops34h 47m

Chicago O'Hare Intl

Sun 3/8

5:25 pm-12:20 pm

1 stop12h 55m

$775

LjubljanaChicago

LJU - MDW

LJUMDW

Ljubljana Joze Pucnik

Sat 10/25

12:20 pm-10:14 pm

2 stops16h 54m

Chicago Midway

Sat 11/1

3:00 pm-11:40 am

2 stops14h 40m

$1,601

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sun 9/28

8:10 pm-9:40 am

1 stop20h 30m

$537

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 12 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 September 11, 2025.

When flying from Slovenia to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 11, 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
1,731 reviews

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Food

7.1

Crew

8.2

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Leonardo,Aug 2025

AMS - ZRH

Amazing alternative from Europe to Hong Kong. Quick connection (even with a non-European passport) and friendly staff that helped me and my family.
SWISS
7.5
Good
1,731 reviews
SWISS
7.5
Good
1,731 reviews

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Food

7.1

Crew

8.2

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Leonardo,Aug 2025

AMS - ZRH

Amazing alternative from Europe to Hong Kong. Quick connection (even with a non-European passport) and friendly staff that helped me and my family.
Turkish Airlines
7.3
Good
3,968 reviews
SWISS
7.5
Good
1,731 reviews

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Food

7.1

Crew

8.2

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Leonardo,Aug 2025

AMS - ZRH

Amazing alternative from Europe to Hong Kong. Quick connection (even with a non-European passport) and friendly staff that helped me and my family.
Lufthansa
6.8
Okay
7,409 reviews
SWISS
7.5
Good
1,731 reviews

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Food

7.1

Crew

8.2

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Leonardo,Aug 2025

AMS - ZRH

Amazing alternative from Europe to Hong Kong. Quick connection (even with a non-European passport) and friendly staff that helped me and my family.

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 Delta, Air France, and KLM fly from Slovenia to Illinois in about 32h 30m. The time it takes to get you to your destination can typically vary by up to 05m. Slovenia and Illinois are separated by a distance of 4703 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Slovenia to Illinois one-way?

    $537 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on Lufthansa and British Airways, with prices starting from $971 and $1,080, respectively.

  • 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.

  • What is the cheapest month to book a flight from Slovenia to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Slovenia to Illinois (average of $245). Flying from Slovenia to Illinois in March is currently the most expensive (average of $321). 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 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$634Average$758FlexibilityNo cancel feeOn-time76%

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