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$551+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
LJU — ORD
Feb 28 — Mar 71
Fri 2/28
Fri 3/7
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 February 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$648
(Travelocity)

One-way from

$551
(oojo)

Popular in

December

Cheapest in

March

Average price

$729
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. 6% potential increase in price ($51 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 February 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 February 23, 2025.

This Travelocity deal was found by Cheapflights users on 2/23. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/236:40 amLJU - ORD
1 stop13h 15mLufthansa
Sat 5/3110:30 pmORD - LJU
1 stop16h 20mLufthansa
Deal found 2/23$648
This Expedia deal was found by Cheapflights users on 2/22. 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 4/124:55 pmLJU - ORD
1 stop26h 05mMultiple Airlines
Sat 4/192:20 pmORD - LJU
1 stop12h 45mMultiple Airlines
Deal found 2/22$658
This oojo deal was found by Cheapflights users on 2/23. 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 4/121:20 pmLJU - ORD
1 stop13h 20mLOT
Sat 4/195:10 pmORD - LJU
2 stops16h 10mLOT
Deal found 2/23$661
This KLM deal was found by Cheapflights users on 2/22. 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
2 stops16h 19mKLM
Sat 4/191:25 pmORD - LJU
2 stops15h 10mKLM
Deal found 2/22$698
This Delta deal was found by Cheapflights users on 2/22. 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 27mDelta
Sun 9/281:05 pmMDW - LJU
2 stops16h 00mDelta
Deal found 2/22$1,750

Find flights from Slovenia to Illinois within your budget

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 February 23, 2025.

Fly from

Slovenia

Fly to

Illinois

Route

Depart

Return

Price

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Fri 5/23

6:40 am-12:55 pm

1 stop13h 15m

Chicago O'Hare Intl

Sat 5/31

10:30 pm-9:50 pm

1 stop16h 20m

$648

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sat 4/12

4:55 pm-12:00 pm

1 stop26h 05m

Chicago O'Hare Intl

Sat 4/19

2:20 pm-10:05 am

1 stop12h 45m

$658

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sat 4/12

1:20 pm-7:40 pm

1 stop13h 20m

Chicago O'Hare Intl

Sat 4/19

5:10 pm-4:20 pm

2 stops16h 10m

$661

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Fri 4/11

9:00 am-6:19 pm

2 stops16h 19m

Chicago O'Hare Intl

Sat 4/19

1:25 pm-11:35 am

2 stops15h 10m

$698

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sat 7/12

1:20 pm-12:20 pm

1 stop30h 00m

$551

LjubljanaChicago

LJU - ORD

LJUORD

Ljubljana Joze Pucnik

Sun 6/22

6:40 am-7:40 pm

3 stops20h 00m

$830

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

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.

Travel insights for flights from Slovenia to Illinois

Get recent, data-driven insights about flights from Slovenia to Illinois including ideal travel times, pricing trends, and more.

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 February 23, 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 February 23, 2025.
KLM
7.8
Good
1,332 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Food

7.3

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,332 reviews
KLM
7.8
Good
1,332 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Food

7.3

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

LOT
7.6
Good
1,081 reviews
KLM
7.8
Good
1,332 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Food

7.3

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Lufthansa
6.7
Okay
6,987 reviews
KLM
7.8
Good
1,332 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Food

7.3

Boarding

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

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 $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 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 February 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$597Average$845FlexibilityNo cancel feeOn-time76%
SWISSCheapest$633Average$666FlexibilityNo cancel feeOn-time79%
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