ORD - LJU

$573 Find Cheap Flights from Chicago to Ljubljana

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Ljubljana departing on 9/25. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Ljubljana.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Ljubljana.
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Cheap Flights from Chicago to Ljubljana

 
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.

Recent round-trip flight deals from Chicago to Ljubljana

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to Ljubljana.
Discover the best prices for you by selecting your travel dates on KAYAK.
Turkish Airlines Logo
11:25 am - 7:15 pmORD-LJU
24h 50m1 stop
Turkish Airlines Logo
9:25 am - 9:40 amLJU-ORD
31h 15m1 stop
$573Turkish Airlines
Find Deal
Thu, Sep 25 - Thu, Oct 2
Turkish Airlines Logo
11:45 pm - 8:30 amORD-LJU
25h 45m1 stop
Turkish Airlines Logo
9:25 am - 9:40 amLJU-ORD
31h 15m1 stop
$598Turkish Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17
Turkish Airlines Logo
11:45 pm - 8:30 amORD-LJU
25h 45m1 stop
Turkish Airlines Logo
8:10 pm - 9:40 amLJU-ORD
20h 30m1 stop
$623Turkish Airlines
Find Deal
Wed, Sep 3 - Wed, Sep 17
Air Serbia Logo
6:50 pm - 8:00 pmORD-LJU
18h 10m1 stop
Air Serbia Logo
9:50 am - 4:40 pmLJU-ORD
13h 50m1 stop
$659Air Serbia
Find Deal
Mon, Sep 1 - Mon, Sep 8
SWISS Logo
2:20 pm - 10:05 amORD-LJU
12h 45m1 stop
SWISS Logo
10:50 am - 3:55 pmLJU-ORD
12h 05m1 stop
$749SWISS
Find Deal
Wed, Aug 13 - Wed, Aug 20
SWISS Logo
2:20 pm - 10:05 amORD-LJU
12h 45m1 stop
SWISS Logo
7:20 pm - 12:10 pmLJU-ORD
23h 50m1 stop
$752SWISS
Find Deal
Mon, Aug 18 - Mon, Aug 25
Lufthansa Logo
3:35 pm - 12:35 pmORD-LJU
14h 00m1 stop
Lufthansa Logo
1:05 pm - 9:05 pmLJU-ORD
14h 00m2 stops
$911Lufthansa
Find Deal
Wed, Oct 22 - Wed, Oct 29
KLM Logo
5:10 pm - 11:35 amORD-LJU
11h 25m1 stop
KLM Logo
9:00 am - 6:40 pmLJU-ORD
16h 40m2 stops
$913KLM
Find Deal
Fri, Aug 22 - Fri, Aug 29
KLM Logo
1:35 pm - 11:35 amORD-LJU
15h 00m2 stops
KLM Logo
9:10 am - 2:10 pmLJU-ORD
12h 00m1 stop
$917KLM
Find Deal
Sun, Aug 17 - Sun, Aug 31
Lufthansa Logo
4:00 pm - 9:30 amORD-LJU
10h 30m1 stop
Lufthansa Logo
10:10 am - 6:15 pmLJU-ORD
15h 05m2 stops
$959Lufthansa
Find Deal
Fri, Oct 10 - Fri, Oct 17
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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.

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.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Ljubljana?

To calculate monthly average prices, KAYAK takes all prices for each month 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 median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to Ljubljana is January, where tickets cost $572 (return) on average. On the other hand, the most expensive months are June and November, where the average cost of round-trip tickets is $1,551 and $1,307 respectively.

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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonNovember
High seasonJuly
Cheapest flight$573
Best time to beat the crowds but there is an average 42% increase in price.
Most popular time to fly with an average 28% 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 $652 for a one-way ticket and $573 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?

    oneworld, Star Alliance, and SkyTeam 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 $1,202 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.

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 1334 reviews
7.2Food
7.1Entertainment
8.4Crew
7.7Comfort
7.8Boarding
Airline reviews

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!

10.0 ExcellentAnonymous, Apr 2025INL - AMS
Read more KLM reviews

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

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

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

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.

My luggage did not make the connection and 4 days later I still have not received it.

We are flying with Swiss for a long time but this time was terrible do to are flight cancellations we are in some bad hotel with out normal food

It is a good airlines, very professional very good food. I wish they offered free luggage is the only thing.

I like how professional, fast and good the whole experience was.

Everything was great except food . It as okay not good not bad

Ordered Vegan meal - it was ok, but not exceptional. Seat ok row 39 middle section aisle. Nearly full flight - crew was busy but they did the best they could. There was a USB A port at the seat. I listened to my own music and only looked at flight information. One nice thing was the connection information was made available in the screen.

Very nice and friendly crew. Boarding system can be improved.

The Etickets had been changed (Why?) without notice ; Hence, that caused troubles when checking in. Not until I contacted my ticket agent and was given correct Etickets could I then check in.

Cleanliness of seats, trays, storage pockets need more attention, but everything else was good.

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

One of the worst check in process at the DIA as well as the boarding counter Changed seat at the last minute and assigned middle seat while I paid for window seat. Requested many times but to no avail . horrible customer service and very poor process Requesting refund for seat that was changed last minute

Good overall flight. Excellent crew. Food options could be improved.

Vegan food tasted good. Restroom could be kept cleaner. Seat tray table was a bit tilted so food tray kept sliding down a bit. Flight crew can be a little more friendly, caring and approachable. Their faces lacked smiles and tone was stern.

Flight was delayed then we had to redirect for medical emergency during which time we had no information on what is the plan. The connecting flight was also delayed.

Professional & courteous cabin crew. Food was very good even in economy class

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

My flight was late from US to Frankfurt so I missed my connecting flight flight and I had to wait for long to catch the next flight which was very tiring. Otherwise everyone was very nice.

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Crew was not happy. Very uncomfortable seats. When person leans back in front of you the screen is too close to me. Food was awful.

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Everything went really well. Snacks could be better and there was no tea/coffee service after dinner. Crew was helpful and friendly.

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.

Lacking online check in, had to wait an hour in order to check in on the counter even without language.

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