$540 Find Cheap Flights from Chicago to Slovenia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Slovenia departing on 10/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Book Cheap Chicago to Slovenia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Slovenia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Slovenia

Sun, Nov 16 - Tue, Dec 2
Delta Logo
5:20 pm - 11:40 amORD-LJU
11h 20m1 stop
Delta Logo
12:50 pm - 2:20 pmLJU-ORD
32h 30m1 stop
$540Delta
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Wed, Dec 3 - Sun, Dec 7
Delta Logo
7:10 am - 11:40 amORD-LJU
21h 30m2 stops
Delta Logo
12:45 pm - 2:20 pmLJU-ORD
32h 35m1 stop
$543Delta
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Mon, Feb 9 - Thu, Feb 19
Air France Logo
4:25 pm - 12:20 pmORD-LJU
12h 55m1 stop
Air France Logo
12:50 pm - 2:20 pmLJU-ORD
32h 30m1 stop
$544Air France
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Mon, Feb 9 - Fri, Feb 20
KLM Logo
4:25 pm - 12:20 pmORD-LJU
12h 55m1 stop
KLM Logo
12:50 pm - 2:20 pmLJU-ORD
32h 30m1 stop
$545KLM
Find Deal
Mon, Feb 9 - Fri, Feb 20
KLM Logo
2:10 pm - 12:20 pmORD-LJU
15h 10m2 stops
KLM Logo
12:50 pm - 2:20 pmLJU-ORD
32h 30m1 stop
$549KLM
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Tue, Nov 11 - Tue, Nov 18
Air France Logo
2:35 pm - 12:20 pmORD-LJU
14h 45m2 stops
Air France Logo
12:50 pm - 1:17 pmLJU-ORD
31h 27m2 stops
$565Air France
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Tue, Nov 11 - Tue, Nov 18
Turkish Airlines Logo
11:50 am - 6:40 pmORD-LJU
23h 50m1 stop
Turkish Airlines Logo
9:20 am - 6:25 pmLJU-ORD
16h 05m1 stop
$567Turkish Airlines
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Tue, Mar 3 - Tue, Mar 10
Turkish Airlines Logo
8:20 pm - 6:40 pmORD-LJU
15h 20m1 stop
Turkish Airlines Logo
7:35 pm - 11:05 amLJU-ORD
21h 30m1 stop
$585Turkish Airlines
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Wed, Mar 18 - Fri, Mar 27
Lufthansa Logo
10:50 pm - 7:30 pmORD-LJU
14h 40m1 stop
Lufthansa Logo
9:45 am - 9:05 pmLJU-ORD
17h 20m2 stops
$696Lufthansa
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Sun, Feb 15 - Fri, Feb 20
Lufthansa Logo
9:50 pm - 7:30 pmORD-LJU
14h 40m1 stop
Lufthansa Logo
6:55 am - 1:10 pmLJU-ORD
13h 15m1 stop
$701Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for Chicago to Slovenia flights

Get data-powered insights and trends into flights from Chicago to Slovenia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Chicago to Slovenia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to Slovenia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago to Slovenia is April, when tickets cost $717 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,622 and $1,350 respectively.

What’s the cheapest day of the week to fly from Chicago to Slovenia?

The average price of all round-trip flights from Chicago to Slovenia clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Chicago to Slovenia, look for departures on Thursdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Slovenia, Saturday is the cheapest day to fly and Thursday is the most expensive.

How far in advance should I book a flight from Chicago to Slovenia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago to Slovenia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago to Slovenia, you should book around 2 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$261
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Chicago to Ljubljana

FAQs - booking Slovenia flights

  • How does KAYAK find such low prices on flights from Chicago to Slovenia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Slovenia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Slovenia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chicago to Slovenia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Slovenia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Chicago to Slovenia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Slovenia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Chicago to Slovenia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Slovenia?

    The cheapest time of day to fly to Slovenia is generally in the afternoon, when round-trip flights cost $832 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Slovenia is generally in the evening, which is peak travel time and where the average cost of a ticket is $940.

Reviews of the top airlines flying from Chicago to Slovenia

 
Need help choosing which airline to fly with from Chicago to Slovenia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Turkish AirlinesOverall score based on 4009 reviews
7.7Crew
7.3Boarding
7.4Entertainment
7.4Food
7.3Comfort
Airline reviews

The staff at IST airport could have been more helpful. Too much wasted time and the plane from IST to KHI was just horrible. The plane was not clean and smelled bad!

4.0 OkayMushtaque, Oct 2025SFO - KHI
Read more Turkish Airlines reviews

The staff at IST airport could have been more helpful. Too much wasted time and the plane from IST to KHI was just horrible. The plane was not clean and smelled bad!

This is my 2nd time with the Turkish airline. Would definitely recommend. In stability we connected to Indiago would not recommend, very cramped seating. No inflight entertainment..service was inferior.

I wouldn't know what the flight was like. AI canceled my flight reservation!! There's no way to speak to an actual human to fix the issue! NEVER AGAIN! ALWAYS BOOK YOUR FLIGHT DIRECTLY WITH THE AIRLINE NEVER GO THROUGH KAYAK OR JUSTFLY.COM!!

Paying extra for premium seats was wasted. Turkish Airlines takes 2 seats for bassinet. The lady next to me had a baby with bassinet Bassinet was in front of my seat

Rude staff. I would avoid using the word racist but definitely partially or discriminatory. My 72 yrs old mother who is also disabled was traveling on this flight. She was the second passenger boarded to the plane. The First elderly couple ahead of my mother were allowed to use the airplane bathroom but my mother was denied entry stating it was for safety reasons. My mother objected the the couple in front of her were allowed but hostess still stated that due to the flight safety reasons she can’t use it. Even my mother explained that he is using blood pressure medication that’s why she have to use the restroom frequently but the crew continued arguing her. At one point the Mae attendent even suggested that if that’s the case my mother can urinate in her seat. The level of disrespect against an elderly lady is beyond my comprehension. This matter will be taken to the social media to shame the employees involved.

my experience was great with Turkish airlines . the problem i encountered was with kayak booking. When I booked . it showed that im allowed a bag . and when I got to the airport, i had to pay $165 for one bag.

Not up to Business Class standards. Two of the three toilets were out of order. The hostesses were aware and didn’t show any responsible act to do something. Food quality was not what we expect from Turkish hospitality. Overall we were not impressed and disappointed.

During mid flight, try to get a flight attendant to help I couldn’t find one Otherwise, everything was perfect

I was not given basinett seat.The connecting flight was missed due to airline fault i was not accomodated for hotel.Drinks were normt served frewuently.Never travelling again on tirkish airlines.I always travel wiyh family by turkish airline but no more.zero stars

The crew were very hospitable and pleasant. The food was pretty good. Unfortunately, there was a flight delay of more than 2 hours. We're not sure why but it appeared to be outside the control of Turkish Airlines.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

We were moved twice on flights to the point we weren’t even on Lufthansa anymore. We had to fly united. Lost paid extra leg room twice. To top it all off we’re forced to pay $375 and $275, respectively for you luggage that was considered sports luggage. We were told it would be Lufthansa fares l, from the united desk, AND WE DIDN'T EVEN HAVE A LUFTHANSA FLIGHT! I’ll be calling once my trip is over on October 7th to all airlines and Kayak. This was ridiculous!

Everything went smoothly and the staff was very kind. I’m glad I purchased the extra leg room for my long flight; it was totally worth it. We were served 2 meals for a 9 hour flight which I was not expecting and they were very tasty. I appreciated them being vegetarian. Customs line in Munich was long; I had a choice to have a 1 hr 40 min layover or 2 hr 40 min layover; I took the longer layover which I was thankful for because my flight was delayed 30 minutes and there’s a good chance I would have missed my connecting flight. This was my very first international flight and I would fly Discover again without hesitation. Thank you for taking good care of me!

I liked everything BUT the temperature. It was freezing and now I am sick.

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

Everything you need to know for your flight from Chicago to Slovenia

Cabin class types available on flights to Slovenia

Cabin classes available on flights to Slovenia. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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