HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Slovenia

$554+ Cheap flights from Illinois to Slovenia

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LJU
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Slovenia 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 Illinois to Slovenia

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Slovenia (SI0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 22, 2024.

Round-trip from

$554
(oojo)
From Illinois to Slovenia
Search Deals

Find flight deals from Illinois to Slovenia

Best flights from Illinois to Slovenia
Discover carefully curated flight deals from Illinois to Slovenia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 22, 2024.

This oojo deal was found by Cheapflights users on 12/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/207:50 pmORD - LJU
1 stop16h 25mTurkish Airlines
Mon 4/288:10 pmLJU - ORD
1 stop28h 45mTurkish Airlines
Deal found 12/22$554
This KLM deal was found by Cheapflights users on 12/21. 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.
Tue 2/45:20 pmORD - LJU
1 stop11h 20mKLM
Tue 2/1112:25 pmLJU - ORD
2 stops18h 24mKLM
Deal found 12/21$704
This Air France deal was found by Cheapflights users on 12/22. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/41:26 pmMDW - LJU
2 stops15h 14mAir France
Tue 2/1112:25 pmLJU - MDW
2 stops16h 55mAir France
Deal found 12/22$711
This Mytrip deal was found by Cheapflights users on 12/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/511:55 amORD - LJU
2 stops18h 50mMultiple Airlines
Wed 2/128:15 amLJU - ORD
3 stops32h 55mMultiple Airlines
Deal found 12/22$732
This British Airways deal was found by Cheapflights users on 12/22. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/207:15 pmORD - LJU
1 stop12h 00mBritish Airways
Mon 4/283:10 pmLJU - ORD
2 stops33h 33mBritish Airways
Deal found 12/22$827
This SWISS deal was found by Cheapflights users on 12/21. 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.
Tue 2/47:05 pmORD - LJU
1 stop12h 00mSWISS
Tue 2/116:35 amLJU - ORD
1 stop16h 40mSWISS
Deal found 12/21$856
This Delta deal was found by Cheapflights users on 12/20. 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.
Sun 1/197:14 amORD - LJU
2 stops21h 26mDelta
Sat 1/251:05 pmLJU - ORD
2 stops35h 20mDelta
Deal found 12/20$859
This oojo deal was found by Cheapflights users on 12/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2210:55 pmORD - LJU
1 stop32h 10mLOT
Sat 3/295:10 pmLJU - ORD
1 stop32h 30mLOT
Deal found 12/22$863
This KLM deal was found by Cheapflights users on 12/21. 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.
Tue 2/42:08 pmMDW - LJU
2 stops14h 32mKLM
Tue 2/1112:25 pmLJU - MDW
2 stops16h 55mKLM
Deal found 12/21$704
This Delta deal was found by Cheapflights users on 12/20. 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.
Sun 1/199:34 amMDW - LJU
2 stops19h 06mDelta
Sat 1/251:05 pmLJU - MDW
2 stops34h 16mDelta
Deal found 12/20$1,269

Find flights from Illinois to Slovenia within your budget

Customize your flight search to find flights from Illinois to Slovenia 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 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sun 4/20

7:50 pm-7:15 pm

1 stop16h 25m

Ljubljana Joze Pucnik

Mon 4/28

8:10 pm-5:55 pm

1 stop28h 45m

$554

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Tue 2/4

5:20 pm-11:40 am

1 stop11h 20m

Ljubljana Joze Pucnik

Tue 2/11

12:25 pm-11:49 pm

2 stops18h 24m

$704

ChicagoLjubljana

MDW - LJU

MDWLJU

Chicago Midway

Tue 2/4

2:08 pm-11:40 am

2 stops14h 32m

Ljubljana Joze Pucnik

Tue 2/11

12:25 pm-10:20 pm

2 stops16h 55m

$704

ChicagoLjubljana

MDW - LJU

MDWLJU

Chicago Midway

Tue 2/4

1:26 pm-11:40 am

2 stops15h 14m

Ljubljana Joze Pucnik

Tue 2/11

12:25 pm-10:20 pm

2 stops16h 55m

$711

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Wed 2/5

11:55 am-1:45 pm

2 stops18h 50m

Ljubljana Joze Pucnik

Wed 2/12

8:15 am-10:10 am

3 stops32h 55m

$732

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sun 4/20

7:15 pm-2:15 pm

1 stop12h 00m

Ljubljana Joze Pucnik

Mon 4/28

3:10 pm-5:43 pm

2 stops33h 33m

$827

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Tue 2/4

7:05 pm-2:05 pm

1 stop12h 00m

Ljubljana Joze Pucnik

Tue 2/11

6:35 am-4:15 pm

1 stop16h 40m

$856

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sun 1/19

7:14 am-11:40 am

2 stops21h 26m

Ljubljana Joze Pucnik

Sat 1/25

1:05 pm-5:25 pm

2 stops35h 20m

$859

ChicagoLjubljana

ORD - LJU

ORDLJU

Chicago O'Hare Intl

Sat 3/22

10:55 pm-1:05 pm

1 stop32h 10m

Ljubljana Joze Pucnik

Sat 3/29

5:10 pm-7:40 pm

1 stop32h 30m

$863

ChicagoLjubljana

MDW - LJU

MDWLJU

Chicago Midway

Wed 2/5

1:05 pm-12:25 pm

3 stops16h 20m

Ljubljana Joze Pucnik

Wed 2/12

1:05 pm-12:42 pm

3 stops30h 37m

$1,255

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 15 results
1
2

Best time to book a flight from Illinois to Slovenia

Have a flexible travel schedule? Discover the best time to fly to Slovenia from Illinois 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 Illinois to Slovenia

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

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

Currently, February is the cheapest month in which you can book a flight from Illinois to Slovenia (average of $710). Flying from Illinois to Slovenia in June is currently the most expensive (average of $1,520). 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.

What is the cheapest time of day to fly from IL to SI?

Find hourly flight availability from Illinois to Slovenia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 22, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Slovenia as you normally would.

Rainfall in Slovenia by month

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

In terms of precipitation, rainfall in Slovenia ranges from 1.6 - 2.8 inches per month. October is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Slovenia when rainfall is around 1.6 in.

Temperature in Slovenia by month

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

If weather is an important factor for your trip to Slovenia, 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 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Slovenia

Get insights into the airlines that provide service to Slovenia. 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 Slovenia. Reviews last updated December 22, 2024.
Delta
8.0
Very good
8,594 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,594 reviews
Delta
8.0
Very good
8,594 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,342 reviews
Delta
8.0
Very good
8,594 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LOT
7.6
Good
1,127 reviews
Delta
8.0
Very good
8,594 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.6
Good
1,605 reviews
Delta
8.0
Very good
8,594 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,501 reviews
Delta
8.0
Very good
8,594 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Slovenia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For one-way options, check prices for Turkish Airlines. According to our data, you can fly for as low as $705. Users have also found prices from $2,460 and $3,262 on LOT and Air France, respectively.

  • Can I find deals for flights from Illinois to Slovenia that include hotel bookings?

    Yes. In addition to deals on Illinois to Slovenia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Slovenia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Slovenia.

  • Can I find deals for business class flights from Illinois to Slovenia?

    Yes. Cheapflights offers flight deals from Illinois to Slovenia 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 Illinois to Slovenia?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Slovenia (average of $710). Flying from Illinois to Slovenia in June is currently the most expensive (average of $1,520). 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

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 Illinois to Slovenia

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
Newark to Charles de Gaulle flights
LaGuardia to Heathrow flights
John F Kennedy Intl to London City flights
Newark to Gatwick flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Gatwick flights
Newark to London City flights
Newark to Leonardo da Vinci/Fiumicino flights
Los Angeles to Heathrow flights
John F Kennedy Intl to Istanbul flights
John F Kennedy Intl to Orly flights
LaGuardia to Charles de Gaulle flights
Boston to Heathrow flights
Stewart to Stansted flights
Dulles Intl to Heathrow flights
Miami to Madrid flights
Newark to Orly flights
John F Kennedy Intl to Madrid flights
John F Kennedy Intl to Barcelona-El Prat flights
Seattle to Heathrow flights
Boston to Charles de Gaulle flights
Dulles Intl to Charles de Gaulle flights
Newark to Athens flights
San Francisco to Heathrow flights
Newark to Malpensa flights
John F Kennedy Intl to Luton flights
John F Kennedy Intl to Lisbon flights
Baltimore to Heathrow flights
O'Hare Intl to Charles de Gaulle flights
Newark to Madrid flights
John F Kennedy Intl to Malpensa flights
O'Hare Intl to Heathrow flights
Los Angeles to Charles de Gaulle flights
Newark to Barcelona-El Prat flights
Dallas/Fort Worth to Charles de Gaulle flights
Stewart to Charles de Gaulle flights
Dallas/Fort Worth to Heathrow flights
Newark to Lisbon flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Dublin flights
Newark to Dublin flights
John F Kennedy Intl to Athens flights
Newark to Frankfurt flights
San Francisco to Charles de Gaulle flights
John F Kennedy Intl to Stansted flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Istanbul flights

Top 5 airlines flying from Illinois to Slovenia

Discover the top 5 airlines that operate flights from Illinois to Slovenia. 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 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$531Average$700FlexibilityNo cancel feeOn-time77%
KLMCheapest$667Average$929FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$675Average$971FlexibilityNo cancel feeOn-time70%
SWISSCheapest$689Average$1,058FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$698Average$1,248FlexibilityNo 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.