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$475+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
LJU — ORD
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 April 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$655
(KLM)

One-way from

$475
(SmartFares)

Popular in

December

Cheapest in

November

Average price

$681
Provider with most accurate pricing for Ljubljana Joze Pucnik-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Ljubljana Joze Pucnik-Chicago (CHI) flights.
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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. 5% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 2, 2025.

This KLM deal was found by Cheapflights users on 4/1. 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.
Fri 4/119:00 amLJU - ORD
1 stop12h 10mKLM
Thu 4/175:10 pmORD - LJU
1 stop10h 55mKLM
Deal found 4/1$655
This Lufthansa deal was found by Cheapflights users on 4/1. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/201:50 pmLJU - ORD
1 stop13h 05mLufthansa
Sun 9/284:00 pmORD - LJU
1 stop14h 20mLufthansa
Deal found 4/1$668
This KLM deal was found by Cheapflights users on 4/1. 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.
Sun 4/139:10 amLJU - MDW
2 stops16h 08mKLM
Sat 4/193:02 pmMDW - LJU
2 stops13h 33mKLM
Deal found 4/1$670
This FlightHub deal was found by Cheapflights users on 4/1. 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.
Tue 6/249:25 amLJU - ORD
1 stop15h 30mTurkish Airlines
Fri 8/811:25 amORD - LJU
1 stop14h 05mTurkish Airlines
Deal found 4/1$700
This SWISS deal was found by Cheapflights users on 4/1. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/237:20 pmLJU - ORD
1 stop24h 30mSWISS
Wed 8/62:20 pmORD - LJU
1 stop12h 45mSWISS
Deal found 4/1$713
This Air Canada deal was found by Cheapflights users on 4/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/206:30 amLJU - ORD
2 stops15h 20mMultiple Airlines
Sun 9/2810:40 amORD - LJU
2 stops16h 25mMultiple Airlines
Deal found 4/1$738
This Air France deal was found by Cheapflights users on 4/1. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2412:20 pmLJU - ORD
2 stops18h 39mAir France
Wed 8/61:35 pmORD - LJU
2 stops15h 00mAir France
Deal found 4/1$773
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2712:35 pmLJU - ORD
2 stops27h 24mDelta
Wed 8/61:35 pmORD - LJU
2 stops15h 00mDelta
Deal found 4/1$780
This LOT deal was found by Cheapflights users on 4/1. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/221:20 pmLJU - ORD
2 stops32h 50mLOT
Sun 8/102:05 pmORD - LJU
1 stop15h 30mLOT
Deal found 4/1$839
This Air France deal was found by Cheapflights users on 4/1. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1111:50 amLJU - MDW
2 stops17h 31mAir France
Thu 4/171:16 pmMDW - LJU
2 stops14h 49mAir France
Deal found 4/1$956
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2012:20 pmLJU - MDW
2 stops16h 24mDelta
Sun 9/289:20 amMDW - LJU
2 stops19h 15mDelta
Deal found 4/1$1,755

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 April 2, 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 4/11

9:00 am-2:10 pm

1 stop12h 10m

Chicago O'Hare Intl

Thu 4/17

5:10 pm-11:05 am

1 stop10h 55m

$655

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sat 9/20

1:50 pm-7:55 pm

1 stop13h 05m

Chicago O'Hare Intl

Sun 9/28

4:00 pm-1:20 pm

1 stop14h 20m

$668

LjubljanaChicago

LJU - MDW

LJUMDW

Ljubljana Joze Pucnik

Sun 4/13

9:10 am-6:18 pm

2 stops16h 08m

Chicago Midway

Sat 4/19

3:02 pm-11:35 am

2 stops13h 33m

$670

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Tue 6/24

9:25 am-5:55 pm

1 stop15h 30m

Chicago O'Hare Intl

Wed 8/6

11:25 am-8:30 am

1 stop14h 05m

$700

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Mon 6/23

7:20 pm-12:50 pm

1 stop24h 30m

Chicago O'Hare Intl

Wed 8/6

2:20 pm-10:05 am

1 stop12h 45m

$713

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sat 9/20

6:30 am-2:50 pm

2 stops15h 20m

Chicago O'Hare Intl

Sun 9/28

10:40 am-10:05 am

2 stops16h 25m

$738

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Tue 6/24

12:20 pm-11:59 pm

2 stops18h 39m

Chicago O'Hare Intl

Wed 8/6

1:35 pm-11:35 am

2 stops15h 00m

$773

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Fri 6/27

12:35 pm-8:59 am

2 stops27h 24m

Chicago O'Hare Intl

Sat 8/9

5:10 pm-11:35 am

1 stop11h 25m

$780

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sun 6/22

1:20 pm-3:10 pm

2 stops32h 50m

Chicago O'Hare Intl

Sun 8/10

2:05 pm-12:35 pm

1 stop15h 30m

$839

LjubljanaChicago

LJU - MDW

LJUMDW

Ljubljana Joze Pucnik

Fri 4/11

11:50 am-10:21 pm

2 stops17h 31m

Chicago Midway

Thu 4/17

1:16 pm-11:05 am

2 stops14h 49m

$956

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 15 results
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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 April 2, 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.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 April 2, 2025.
Get a feel of what it's like to fly with Delta, KLM and LOT from Slovenia to Illinois by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,897 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
LOT
7.6
Good
1,065 reviews
Delta
8.0
Very good
7,897 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,572 reviews
Delta
8.0
Very good
7,897 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.4
Good
1,427 reviews
Delta
8.0
Very good
7,897 reviews

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 $323). 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 2 airlines flying from Slovenia to Illinois

Discover the top 2 airlines 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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$597Average$845FlexibilityNo cancel feeOn-time76%
SWISSCheapest$633Average$660FlexibilityNo cancel feeOn-time79%

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