ORD - LJU

$283 Find Cheap Flights from Chicago to Ljubljana

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 Ljubljana departing on 11/5. 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 Ljubljana

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

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

Sat, Dec 6 - Wed, Dec 17
Turkish Airlines Logo
11:50 am - 6:40 pmORD-LJU
23h 50m1 stop
Turkish Airlines Logo
9:20 am - 10:05 amLJU-ORD
31h 45m1 stop
$602Turkish Airlines
Find Deal
Sat, Nov 15 - Fri, Nov 21
Turkish Airlines Logo
8:20 pm - 6:40 pmORD-LJU
15h 20m1 stop
Turkish Airlines Logo
9:20 am - 6:25 pmLJU-ORD
16h 05m1 stop
$611Turkish Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 15
LOT Logo
10:55 pm - 1:05 pmORD-LJU
32h 10m1 stop
LOT Logo
5:10 pm - 8:00 pmLJU-ORD
33h 50m1 stop
$617LOT
Find Deal
Wed, Oct 29 - Wed, Nov 5
Turkish Airlines Logo
12:50 pm - 6:40 pmORD-LJU
23h 50m1 stop
Turkish Airlines Logo
7:35 pm - 6:25 pmLJU-ORD
29h 50m1 stop
$621Turkish Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Multiple Airlines Logo
2:00 pm - 9:00 amORD-LJU
36h 00m3 stops
Multiple Airlines Logo
8:45 pm - 8:17 pmLJU-ORD
30h 32m3 stops
$709Multiple Airlines
Find Deal
Sat, Oct 18 - Tue, Oct 21
LOT Logo
9:40 pm - 12:35 pmORD-LJU
31h 55m1 stop
LOT Logo
5:05 pm - 7:40 pmLJU-ORD
33h 35m1 stop
$721LOT
Find Deal
Sat, Nov 15 - Fri, Nov 21
Multiple Airlines Logo
6:50 pm - 1:40 pmORD-LJU
11h 50m1 stop
Multiple Airlines Logo
9:45 am - 8:05 pmLJU-ORD
17h 20m2 stops
$726Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Lufthansa Logo
11:35 pm - 7:30 pmORD-LJU
13h 55m2 stops
Lufthansa Logo
10:00 am - 8:05 pmLJU-ORD
17h 05m2 stops
$764Lufthansa
Find Deal
Wed, Dec 3 - Sun, Dec 7
Lufthansa Logo
9:50 pm - 7:30 pmORD-LJU
14h 40m1 stop
Lufthansa Logo
9:45 am - 8:05 pmLJU-ORD
17h 20m2 stops
$788Lufthansa
Find Deal
Sat, Oct 18 - Sat, Oct 25
Air Serbia Logo
11:20 pm - 9:00 amORD-LJU
26h 40m1 stop
Air Serbia Logo
2:55 pm - 9:00 pmLJU-ORD
13h 05m1 stop
$832Air Serbia
Find Deal

Everything you should know

Top airlines
Turkish Airlines
Cheapest • from $602 (round-trip)
KLM
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 9% compared to booking last minute.
Insights
Insights
Insights
Insights
Cheapest round-trip
$602
Typical prices: $854-940
Turkish Airlines
Sat 12/6Wed 12/17
ORD - LJU • 1 stop
Cheapest one-way
$283
Multiple Airlines
Wed 11/5
ORD - LJU • 3 stops
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We hope you love your trip to Ljubljana!
Booking Insights

KAYAK's insights & trends for Chicago to Ljubljana flights

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

How much is a round-trip flight from Chicago O'Hare Intl Airport to Ljubljana?

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

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Ljubljana clicked on KAYAK for each day over the last 12 months.

When flying from Chicago to Ljubljana, you should consider leaving on a Thursday and avoid Fridays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Saturdays and the most expensive ones on Thursdays.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Ljubljana?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Ljubljana, 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 O'Hare Intl Airport to Ljubljana, you should book around 2 weeks before departure, which saves you about 9% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Cheapest flight$283
Most popular time to fly with an average 15% increase in price.
Flight from Chicago to Ljubljana

When to book flights from Chicago to Ljubljana

Are your dates flexible? Find out the best times to travel from Chicago to Ljubljana based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to Ljubljana flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Ljubljana?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Ljubljana was $283 for a one-way ticket and $602 for a round-trip.

  • Do I need a passport to fly between Chicago and Ljubljana?

    Yes, you’ll need a passport to travel to Ljubljana from Chicago.

  • Which aircraft models fly most regularly from Chicago to Ljubljana?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chicago to Ljubljana?

    Star Alliance, and oneworld are the airline alliances operating flights between Chicago and Ljubljana, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Chicago to Ljubljana, KLM or SWISS?

    The two airlines most popular with KAYAK users for flights from Chicago to Ljubljana are KLM and SWISS. With an average price for the route of $929 and an overall rating of 7.8, KLM is the most popular choice. SWISS is also a great choice for the route, with an average price of $883 and an overall rating of 7.5.

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

    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 Ljubljana.

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

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

    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 to Ljubljana with an airline and back to Chicago with another airline. Booking your flights between Chicago and LJU can sometimes prove cheaper using this method.

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

    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 to Ljubljana from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Chicago to Ljubljana

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Ljubljana. 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 Chicago to Ljubljana? 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.
7.8
KLMOverall score based on 1385 reviews
7.2Entertainment
8.4Crew
7.8Boarding
7.3Food
7.7Comfort
Airline reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

2.0 MediocrePeter, Aug 2025SAN - AMS
Read more KLM reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

Food used to be better and comfort was not attainable after 5 hours everything starts hurting.

horrible.. they cause such a problem and my daughter 14 years old was stranded in san francisco

I can’t even the whole trip was a catastrophe

Poor. Seats uncomfortable. No leg room. Hot and humid the whole trip. Food and staffs were ok.

The seats were so close together, when the man in front of me put his seat back, the screen in front of me was 9 inches from my face. There is no way to lean forward if I needed to pick something up. It was pretty uncomfortable for a ten hour flight. I was very surprised.

The food was good. Most the staff was pleasant. The flight would be drastically improved with WiFi on a long international flight.

The whole experience was positive. Crew very friendly and helpful. Very greedy with pre-seat allocation. Web site too complicated

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 cushion of the seats are old and very thin. The food can be more tasty or come with salt packages

The biggest let down was with booking experience through Kayak. I booked a flight with checked bags on Kayak. Right away I got a message from travel agency that the flight is not confirmed and to call them. I called them and they said the flight I have booked is no longer available with the price I have booked it for and I can book it with about $100 more. I already had other options I could book with cheaper price so I asked them to cancel my booking. Then they said I can have the ticket with the same price but a date change which was not working for me as I had to be there for a seminar. So again I said no then they said they will cover the charges and confirm my flight. When comes time for check-in I see I have no checked bag option which means the travel agency deceived me saying I can have my booking as I had booked it. And at that point I ended up paying $155 for my checked bag going back and forth. I am extremely angry and unhappy with this experience

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.

Bough tickets with luggage, but made me pay at Airport as well

The economy seat was so uncomfortable, had not enough leg room for 13 hours flight, front seat basket was broken and couldn’t hold anything, food quality was horrible( we got food poisoned ) we charged for logged which used to be free. We paid too much for this flight and very disappointed. Turkish air line better to make satisfy and respect people instead of find different way to scam people.

This is really the rating of two flights. JFK to IST then IST to NQZ. New York to Istanbul was good. Good crew and all positives. The flight to Astana was so bad that brought it all down. Crew was nonexistent above the minimum, seats were cramped, and it was hot on the plane. Turkish Airlines seems to be slipping down to US based carriers level.

The 2 agents on the check in counter were super nice , helpful and very polite. Boarding was like a 1 2 3, I would recommend Turkish airlines for your next trip.

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

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

The plane was delayed by two hours in Chicago which led to us missing the next flight. Lufthansa rebooked the flight and booked us a hotel for the night in Frankfurt. The level of customer service and getting us taken care of was superb. The flight crew and the service on the ground was superb.

It was a short flight, everything was good with it.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Stop charging for alcohol overseas flights and start taking cash again not everyone wants to pay with card if the person is bigger give him seat on the outside seats not the middle in between the people is common sense and mainly if you fly for Lufthansa provides the sam service and experience...

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Booked Economy but it translated to economy light for Lufthansa so now we are stuck paying an extra $75 per person both ways for our checked bags. If I had known that, I would have never booked these tickets because it came out to be more than other options. The booking in the kayak side clearly says Economy and has a link to the inormation for Lufthansa which states Economy included a checked bag. Super annoyed about that.

The flight from Dulles to Munich was just okay. The seats were comfortable and extra foot room was noticeable in comfort plus. Disappointed in the booking in so much I requested an aisle seat and then was assigned a middle seat. The food was inedible. Movie choices were moderate. I usually fly Delta, but this WA flight was cheaper. Next time, I'll happily pay the extra to fly Delta.

Delaying more than 5 hours from Belgrade to Tirana Information very rude to questions

It's the shortest trip one could get from BEG anywhere, so it was fine.

I paid for luggage when I bought the ticket but I could not board until I paid for luggage again. The fault lays at the feet of eDreams, the company that booked our flight. Sorry, Air Serbia, but it did affect the boarding process.

They had lost my ticket and despite showing them the confirmation email with the itinerary and receipt of payment for the flight they could not put me on that flight and rescheduled departure postponing it by a whole week

Kraljevo is very convenient airport. It's brand new, small.and efficient. Great job!

Long delay (6 hour late departure, not informative enough to provide up to date info on flight, poor food quality

Plane was late causing me to miss connection. Flight the next late causing me to miss the rebooked connection. Air seberia I think is more late than on time

Plane was old. Seats were hard and very close together. No in flight entertainment.

This was my connection flight that was moved time ahead for a almost entire day so I lost it and I had to purchase new ticket once I landed in Copenhagen since nobody wanted to take responsibility for moving flight in that way so it’s impossible to make it. Very poor job by Underpricer, Air Serbia and SAS.

I purchased an exit row seat and priority boarding, about 3 months in advance. Without any communication whatsoever, my seat was moved to row 2, when I checked my reservation 2-3 days before departure. As no exit row seats were available anymore, I selected a seat 1C. However, once at the airport, I was issued maybe the worst possible seat, 29E, middle seat, one row before the last. It is not worth my time to request the refund on the ancillary purchase, I am simply done flying with Air Serbia. Also there was no boarding process to speak of at all, or online check in.

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

Information on your arrival and departure airports

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