$501 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 10/13. 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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Book Cheap Ljubljana to Illinois Plane Tickets

 
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

Thu, Sep 4 - Mon, Sep 8
SWISS Logo
7:20 pm - 3:55 pmLJU-ORD
27h 35m1 stop
SWISS Logo
7:05 pm - 10:05 amORD-LJU
32h 00m1 stop
$615SWISS
Find Deal
Sat, Nov 8 - Sat, Nov 15
 Logo
6:45 am - 1:10 pmLJU-ORD
13h 25m1 stop
 Logo
6:50 pm - 10:30 pmORD-LJU
20h 40m1 stop
Thu, Aug 28 - Tue, Sep 2
Lufthansa Logo
10:10 am - 7:55 pmLJU-ORD
16h 45m1 stop
Lufthansa Logo
3:05 pm - 9:25 amORD-LJU
11h 20m1 stop
$639Lufthansa
Find Deal
Thu, Aug 28 - Tue, Sep 2
Lufthansa Logo
10:10 am - 12:55 pmLJU-ORD
33h 45m1 stop
Lufthansa Logo
3:05 pm - 9:25 amORD-LJU
11h 20m1 stop
$657Lufthansa
Find Deal
Tue, Sep 2 - Tue, Sep 9
Delta Logo
12:35 pm - 9:56 pmLJU-ORD
16h 21m2 stops
Delta Logo
10:15 am - 11:35 amORD-LJU
18h 20m2 stops
$680Delta
Find Deal
Sat, Sep 20 - Sun, Sep 28
KLM Logo
12:35 pm - 2:10 pmLJU-ORD
32h 35m1 stop
KLM Logo
5:10 pm - 11:35 amORD-LJU
11h 25m1 stop
$687KLM
Find Deal
Sat, Sep 20 - Sun, Sep 28
KLM Logo
12:35 pm - 2:10 pmLJU-ORD
32h 35m1 stop
KLM Logo
5:10 pm - 11:35 amORD-LJU
11h 25m1 stop
$693KLM
Find Deal
Thu, Aug 28 - Tue, Sep 2
Delta Logo
12:35 pm - 3:42 pmLJU-MDW
34h 07m2 stops
Delta Logo
6:17 pm - 11:35 amMDW-LJU
34h 18m2 stops
$860Delta
Find Deal
Sun, Sep 28 - Tue, Jan 20
Turkish Airlines Logo
8:10 pm - 5:55 pmLJU-ORD
28h 45m1 stop
Turkish Airlines Logo
8:20 pm - 6:40 pmORD-LJU
15h 20m1 stop
$3,051Turkish Airlines
Find Deal
Sun, Sep 28 - Tue, Jan 20
Turkish Airlines Logo
8:10 pm - 9:37 amLJU-ORD
44h 27m2 stops
Turkish Airlines Logo
8:20 pm - 6:40 pmORD-LJU
15h 20m1 stop
$3,056Turkish Airlines
Find Deal
Booking Insights

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 $941 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
Cheapest flight$501
Best time to beat the crowds with an average 0% drop 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 1687 reviews
8.2Crew
6.8Entertainment
7.7Boarding
7.1Food
7.4Comfort
Airline reviews

Not good. We returned on united airlines and the food was horrible.

4.0 OkayLuz, Jul 2025ZRH - DEN
Read more SWISS reviews

Not good. We returned on united airlines and the food was horrible.

The return was painful because of the flight that was canceled. Nobody was able to help us out. It took hours and a lot of walking on two different airports to get a new flight

The cabin was warm and few used the blankets. I should’ve upgraded.

The plan was delayed for takeoff by an hour, but we ended up making the landing on time which was a nice surprise.

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...

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.

Small seat space for 13 hours flight, they charged for baggage , very bad quality of food,

I was sitting almost in the back, the seats are very tight and there’s no legroom, it’s uncomfortable for a long distance

Absolute worst airline. Charged us $720 to check 4 bags (2 of which were carry-on). Entertainment systems didnt work. And on a 12 hour flight they served 2 meals and never once came around outside of those 2 meals with a beverage or cup of water. Will never fly them again.

Took forever to board. They made announcements without the loudspeaker and since the waiting room was full of screaming kids, no one could hear what they were saying. The business class sleeper seats were designed for tall skinny people. When partially reclined there was nowhere to rest my feet because they did not reach the footrest. and when fully reclined there wasn't room at my sides for my arms. Definitely one of the worst sleeper seats I have ever had.

About an hour delay but we made it to Chicago. I feel that the smaller connecting flights are the ones that cause the delays on the bigger planes that fly international.

Amazing trip! No delays, no broken or lost luggage, and amazing food.

The food we received during the flight was excellent. The service was very friendly. Definitely the best value for the money when flying across the Atlantic.

I use a wheelchair for mobility. Both in my flight from Houston and back to Houston from Istanbul, the Turkish airline staff asked that I claim my wheelchair at the luggage area. On arrival to Istanbul, parts of the wheelchair were in disarray at that time I raised no objection however upon claiming my wheelchair in Houston parts where outright missing. In both occasions, upon arriving in Houston and arriving in Istanbul, I asked multiple times why am made to pick up my wheelchair in the baggage claim rather than at the jet bridge. Getting the wheelchair at the jet bridge minimizes the probability of loosing parts because they can be hopefully reclaimed on the spot. I was told in Houston that a manager turned down my request to claim the wheelchair at the jet bridge in Houston. This is extremely frustrating because a wheelchair is not a set of clean underwear or a toothbrush- this is the way I move. A Turkish Arline staff took my complaint at the luggage claim area in Houston but as of the writing of this review the only contact I have received from the airline is because I initiated a claim rather than her as she told me she would.

The security at the airport was excellent. The one criticism is the boarding process just before entering the plane. There were only 2 boarding lines and there were no barriers thus leading to a mass rush to enter the plane. I suggest that they board by rows, eight or ten rows at a time to prevent the mass rush to enter the plane. Otherwise, I would highly recommend Turkish Airlines

Everything was very good, except that the plane was an hour and a half late

I darted through the Frankfurt airport to make my connecting flight. I asked if it was a possibility to upgrade and the agent did. This was the kindest gesture and it made up for the previous delayed flight and distress/anxiety of anticipating that Zi was going to miss my Frankfurt-Chicago connection. I cannot express my gratitude for the upgrade.. I am 5feet 10 inches do the leg space was amazing.

I meant this flight was not good, the one from Tirana to Frankfurt was better!

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:

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