$511 Find Cheap Flights from Ljubljana to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ljubljana to Illinois departing on 9/28. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ljubljana to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ljubljana to Illinois, as well as popular online travel agencies
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Cheap Flights from Ljubljana to Illinois

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ljubljana to Illinois 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 Ljubljana to Illinois

Tue, Sep 16 - Mon, Sep 29
Lufthansa Logo
6:20 am - 12:55 pmLJU-ORD
13h 35m1 stop
Lufthansa Logo
3:35 pm - 9:00 amORD-LJU
10h 25m1 stop
$692Lufthansa
Find Deal
Tue, Sep 16 - Wed, Oct 1
Lufthansa Logo
6:20 am - 12:55 pmLJU-ORD
13h 35m1 stop
Lufthansa Logo
3:05 pm - 9:35 amORD-LJU
11h 30m1 stop
$694Lufthansa
Find Deal
Wed, Sep 17 - Sun, Sep 28
SWISS Logo
7:25 pm - 12:55 pmLJU-ORD
24h 30m1 stop
SWISS Logo
7:05 pm - 10:05 amORD-LJU
32h 00m1 stop
$699SWISS
Find Deal
Sat, Sep 20 - Sun, Sep 28
KLM Logo
12:35 pm - 2:10 pmLJU-ORD
32h 35m1 stop
KLM Logo
4:20 pm - 8:15 amORD-LJU
32h 55m1 stop
$711KLM
Find Deal
Sat, Sep 20 - Sun, Sep 28
KLM Logo
12:35 pm - 2:10 pmLJU-ORD
32h 35m1 stop
KLM Logo
4:20 pm - 8:15 amORD-LJU
32h 55m1 stop
$712KLM
Find Deal
Wed, Sep 17 - Wed, Oct 1
Delta Logo
12:35 pm - 11:53 pmLJU-ORD
18h 18m2 stops
Delta Logo
10:40 am - 11:35 amORD-LJU
17h 55m2 stops
$713Delta
Find Deal
Wed, Sep 17 - Mon, Sep 29
SWISS Logo
7:25 pm - 12:55 pmLJU-ORD
24h 30m1 stop
SWISS Logo
4:00 pm - 6:35 pmORD-LJU
19h 35m2 stops
$721SWISS
Find Deal
Sun, Sep 14 - Tue, Sep 30
LOT Logo
1:20 pm - 7:40 pmLJU-ORD
13h 20m1 stop
LOT Logo
9:40 pm - 12:35 pmORD-LJU
31h 55m1 stop
$727LOT
Find Deal
Wed, Sep 17 - Thu, Oct 2
LOT Logo
5:05 pm - 12:20 pmLJU-ORD
26h 15m1 stop
LOT Logo
5:10 pm - 4:20 pmORD-LJU
16h 10m2 stops
$762LOT
Find Deal
Fri, Jun 27 - Fri, Aug 15
Delta Logo
12:35 pm - 11:58 pmLJU-ORD
18h 23m2 stops
Delta Logo
6:20 pm - 9:20 pmORD-LJU
20h 00m2 stops
$935Delta
Find Deal
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KAYAK's insights & trends for Ljubljana to Illinois flights

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

What is the cheapest month to fly from Ljubljana to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ljubljana to Illinois, 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 Ljubljana to Illinois is November, when tickets cost $596 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is $949 and $938 respectively.

What’s the cheapest day of the week to fly from Ljubljana to Illinois?

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

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


Good to know

Low seasonSeptember
High seasonJune
Cheapest flight$511
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from Ljubljana to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Ljubljana to Illinois?

    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 Ljubljana to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ljubljana to Illinois 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 Ljubljana to Illinois?

    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 Ljubljana to Illinois 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 Ljubljana to Illinois?

    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 Ljubljana to Illinois 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 Illinois?

    The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $693 on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $841.

Reviews of the top 3 airlines serving from Ljubljana to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Ljubljana to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ljubljana to Illinois? 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.
7.5
SWISSOverall score based on 1632 reviews
6.7Entertainment
7.4Comfort
8.2Crew
7.6Boarding
7.0Food
Airline reviews

The crew was very friendly and nice! Very smooth flight.

10.0 ExcellentAnonymous, Jun 2025ZRH - JFK
Read more SWISS reviews

The crew was very friendly and nice! Very smooth flight.

The meal was wonderful and strawberry ice cream was a plus.

Absolutely amazing! Best airline i have flown with, huge difference to United!

All the flight to USA were arranged to E terminal whereas from Dubrovnik arriving on Zurich is on A80, have to walk all the way from A to E, even need transfer bus , for short transfer time like in an hour, we have to work fast, as soon as arrived at E, it is about time to boarding, pretty tight schedule, I hope Zurich airport can make some rearrangement so that transfer people do not have to walk long way. For short transfer time people, such as 50 min, this is even impossible if still like this.

...as stated previously, red tape should be shorted by Swiss in terms of generating refunds...

When I needed to get my bag off of the plane so that I could take a train because the connection was 4 hours later, they took 2 hours to take my bag off making me take the train and miss my flight simultaneously. The seat size on the plane is too small for an average aged woman let alone a middle-aged man. It's unacceptable and I will not fly Boeing again.

The staff were nice people, the food was very cheap, one of the meal was a sandwich or nothing, I couldn't buy any food, mind expensive duty free WAS available right away. 🤒

PLEASE DONT TAKE FORCEFULLY(SIZE APPROPRIATE) CARRY ONS FROM PASSENGERS WHO FOR SOME REASON NEED TO KEEP IT

It was great. My seat was comfortable. The bathrooms were clean . The service was superb . I travel a lot and I have been in 64 counties. I wish I could fly first class, even though I could , but I prefer to budget my yearly travelling expense on actual visiting , not on flight. Anyway, my point is that your economy was far much better than other airlines as good as Air France. The flight attendants and all crew were polite and very helpful and respectful. Thank you for making my long trip tolerable.

I slept the whole flight so I can't tell you about the food and there was no entertainment offered. Crew was very nice, seats were comfortable in business, and boarding was easy.

The check in process at Istanbul airport caused my family a great deal of stress and disappointment due to the following factors: 1) WE HAD TO PAY US$330 for check on bags, despite holding Economy tickets that Turkish airlines website clearly states that flights from Istanbul to Miami had a 2 checked bags allowance. 2) Airport staff not only lacked empathy for senior travelers (75 yrs old and 71 yrs old), but were also rude as well. The supervisor at check it offered "if you don't pay for the bags, you can just remain and sleep at the airport for however long you wish. What a terrible way to treat customers !!! 3) We were bumped from agent to agent to agent FIVE times, showing everyone the communication we received telling us we had the 2 bags entitlement. Two elderly people lugging 4 suitcase around and around the Turkish terminal. Again, what a sad way to treat customers !!! 4) We need a case opened to get a refund for the amount we paid. Something is amiss, screams unethical, and sounds unscrupulous......At First , we were told we must pay for 4 bags. All of a sudden, it became 2 bags, and finally all 4 bags were checked on with payments demanded for 2. Why did it vary from agent to agent???? 5) OVERALL, A TERRIBLE AND SUSPICIOUSLLY UNSCRUPULOUS EXPERIENCE FLYING WITH TURKISH AIRLINES. WE ARE TERRIBLY DISAPPOINTED AND SAD THAT OUR VISIT TO A BEAUTIFUL CITY ENDED IN SUCH A HORRIBLE EXPERIENCE

I recently flew with Turkish Airlines, and I can confidently say it was one of the best travel experiences I’ve ever had. From the moment I boarded, the crew was incredibly attentive, warm, and professional. They went above and beyond to ensure everyone was comfortable and well taken care of throughout the flight. The highlight, however, was the food! I’ve flown with many airlines, but Turkish Airlines sets the bar incredibly high when it comes to in-flight dining. Every meal was fresh, flavorful, and beautifully presented. The variety of dishes, even on a long-haul flight, was impressive. It felt like dining at a high-end restaurant at 35,000 feet! The seats were comfortable, the entertainment options were great, and the overall atmosphere made the journey enjoyable. Turkish Airlines truly excels in combining luxury and hospitality. I wouldn’t hesitate to fly with them again—highly recommend!

One of the best flights I have been on in a while.

Here's a sample answer: "Honestly, I was really impressed with Turkish Airlines, but if I had to suggest one area for improvement, it would be: - *More efficient boarding process*: I noticed that boarding took a bit longer than expected, which might be frustrating for passengers with tight connections.

Not worth pay business class and get service economy class

In this long haul flight, flight attendants never stopped moving and giving excellent service. Very impressive. Very comfortable seats and excellent food

In sharp contrast to the modern glitzy airport, boarding facilities were primitive. Passengers had to board buses and walk up steep stairs in bitter cold with carry-on baggages. I found no reason why aerobridge was not provided.

Service and food were decent, seats are a bit too narrow. Leg room is normal. Bathroom should be cleaned more frequently. WiFi is cumbersome and should be simplified.

they have cancell the flight with no reasons, My parents were in the cold weather in the airport for 24 hours they did not give any hotel and food. I hate Turkish Airline, this is our last time that we ha ve chosen Turkish Airline.

Same as before boarding process and lack of crew experience in the process

I was very grateful for Lufthansa's role in organizing mobility support. The touchscreen on my seat was faulty: slow, stained (I couldn't get it clean), and glitchy. This made selecting movies extremely time consuming, and twice I had to start all over from the beginning.

The crew was the best I’ve ever encountered. Business class was spacious, immaculate, and very modern.

The crew was fantastic. They were always there when we needed them. No wifi on an 11 hour flight was a bummer. The entertainment onboard was boring.

I wish seats were not reclinable. It's so claustrophobic when the person in front of you spends most of a nine hour flight leaned all the way back. The crew was really nice though and the dinner (red Thai curry) was pretty compelling.

Our flights were severely delayed, then canceled and we had to fly out next day with no sleep accommodation help. This led to our baggage being lost and the service reps after baggage couldn’t be bothered to help. They kept sending us to different counters when we were at the right counter to begin with. The only saving grace was the angel woman supervisor with blond hair who helped us put in a missing baggage claim.

The boarding system was all bogus - employees at the boarding gate were not sound like proffesional or may be possibly rational

I got an email in the morning of the flight 1/7, from Kayak, that I was rebooked from UA 906 to LH 430. Nobody at Lufthansa ot United knew about this. I went to both counters. at the airport. Also, Cheap Flights, who I booked the ticket through, did not know. I ended up staying on the United flight. But this was very disturbing, since I got a very late notice that I was rebooked to an earlier flight, I hurried to the airport to find out after a lot of inquiring that this was a mistake. Not a good Kayak experience.

After living in Europe for five years and flying with Lufthansa and KLM airlines, I’ve realized that United Airlines is now a budget carrier. The flight attendant are not friendly. The seats are not comfortable. And everything comes at a cost. I will be flying with KLM and Skyteam like Delta to the US going forward no doubt. United Airlines is not what it once was:

Delayed take off but I think they waited for passengers.

I had to fly United where the flight crew was atrocious

Everything you need to know for your flight from Ljubljana to Illinois

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