ORD - LJU

$191 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 4/11. 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 Flight Deals 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.

Recent round-trip flight deals from Chicago to Ljubljana

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Chicago to Ljubljana.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:25 am - 7:15 pmORD-LJU
24h 50m1 stop
8:10 pm - 9:40 amLJU-ORD
20h 30m1 stop
$191Turkish Airlines
Find Deal
Fri, Apr 11 - Fri, Apr 18
11:25 am - 8:30 amORD-LJU
14h 05m1 stop
8:10 pm - 9:40 amLJU-ORD
20h 30m1 stop
$589Turkish Airlines
Find Deal
Thu, Apr 10 - Thu, Apr 17
12:55 pm - 6:50 pmORD-LJU
23h 55m1 stop
8:10 pm - 5:55 pmLJU-ORD
28h 45m1 stop
$597Turkish Airlines
Find Deal
Wed, Mar 26 - Wed, Apr 2
7:50 pm - 8:30 amORD-LJU
29h 40m1 stop
8:10 pm - 9:40 amLJU-ORD
20h 30m1 stop
$625Turkish Airlines
Find Deal
Tue, Apr 1 - Tue, Apr 8
11:25 am - 8:30 amORD-LJU
14h 05m1 stop
9:25 am - 9:40 amLJU-ORD
31h 15m1 stop
$627Turkish Airlines
Find Deal
Fri, Apr 18 - Wed, Apr 30
4:55 pm - 9:50 amORD-LJU
10h 55m1 stop
6:40 am - 6:33 pmLJU-ORD
18h 53m2 stops
$771Lufthansa
Find Deal
Wed, Mar 26 - Wed, Apr 2
1:25 pm - 11:35 amORD-LJU
15h 10m2 stops
12:35 pm - 2:10 pmLJU-ORD
32h 35m1 stop
$1,080KLM
Find Deal
Sun, Apr 20 - Mon, Apr 28
4:00 pm - 9:45 amORD-LJU
10h 45m1 stop
8:00 pm - 12:55 pmLJU-ORD
23h 55m2 stops
$1,152Lufthansa
Find Deal
Sat, May 17 - Mon, Sep 15
4:30 pm - 8:55 amORD-LJU
33h 25m1 stop
9:50 am - 9:00 pmLJU-ORD
18h 10m1 stop
$1,330Air Serbia
Find Deal
Wed, Jun 25 - Sat, Jul 5
5:55 pm - 10:25 pmORD-LJU
46h 30m2 stops
2:50 pm - 12:00 pmLJU-ORD
51h 10m2 stops
$1,364SWISS
Find Deal
Sat, Mar 22 - Sat, Mar 29

Flights from Chicago to Ljubljana - Travel Insights & Trends

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 $1,641 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 13 weeks before departure.

Good to know

Low season

November

High season

September

Cheapest flight

$191
Best time to beat the crowds but there is an average 40% increase in price.
Most popular time to fly and prices are also 22% lower on average.
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 $478 for a one-way ticket and $191 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, SkyTeam, 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 $1,176 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.

See more FAQs

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 1332 reviews
7.8Boarding
8.4Crew
7.7Comfort
7.2Entertainment
7.3Food
Airline reviews

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

2.0 Mediocredale, Feb 2025ACC - AMS
Read more KLM reviews

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

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.

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

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.

Good flight with KLM, friendly staff. Food was good, had much worse on other airlines. Selection of drinks also good enough for us. Entertainment was also good. The economy seats are ok and that’s it. For a 12 hour flight I think a little more comfort in the economy seats in pitch and softness would be highly appreciated by the customers and can makte the difference.

Good food. Excellent crew service. Clean aircraft. Narrow seats and isle.

There was fog in Amsterdam so many flights were delayed because of the weather. Air France knew that the flight would be delayed by two hours but still boarded the plane on time. Instead of letting the passengers wait at the gate we were crammed into the plane. It was uncomfortable. No refreshments were given. I couldn’t charge my devices onboard.

The food & entertainment really stood out in terms of quality. The nasi goreng & chicken satay were absolutely delicious. It’s great that KLM feature international cuisine.

Seats were comfortable crew members support was very good but AVML ordered or selected by us needs a lot of improvement.

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

The plane was good - on time! But can the stewardesses smile or actually be nice - not to bark the commands

This time, I traveled in the economy, and it was surprisingly better than the eco-premium (food, comfort, and crew were noticeably worse in premium!)

Edelweiss is now Nickle&dimming, not even a complimentary wine on the intercontinental flight. Sitting space is the smallest I have ever seen.

Lots of water brought around by staff which is very important to stay hydrated on a long flight. There provided swiss chocolate icecream! The attention to detail is obvious. They really want to make their passengers entertained and comfortable.

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

7 stars hospitality and an excellent service by the Turkish Airline entire team. Somehow, our membership numbers for mileage points were not indicated on our boarding passes issued at O’Hare Airport by the Turkish Airlines check in desk. During transit in Istanbul, I brought to attention of customer service Turkish Airlines. Please have our mileage points posted to our membership account from O’Hare Chicago to Lahore for both my wife Kaukab Shirazi Thank you

Terrible boarding experience, with an incomprehensible assignment of priorities. “Fast track” was the slowest. Poor system planning.

Terrible boarding process, no proper line maintained even for business class, crews are not very attentive, business class food quality / variety / quantity have gone down, everything has become cheap.

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.

Both flights were delayed and we missed our connection. Our second flight was delayed 3 times. I have always had great service and never any problems with my flights on Lufthansa. My last two flights were, unfortunately, awful. I fly quite often to Germany and have had better luck with United than Lufthansa.

Lufthansa charged me $280 to take skiiis when in the US the boot bag and skiis are one check-in bag. This was not advertised and a real shock at the airport. They only took the boot bag as a check-in item. The seats have been squeezed together like any economy airline and legroom is not as good as it used to be. Otherwise, the flight was fine and staff was helpful for making my connection.

On board Entertainment and crew services were absolutely trash! Neither me, nor any of my 40 family/friends members are flying Lufthansa again!

Eet late informed about delay of more rhan four houts

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:

My schedule flight was rebooking and changed to Chicago, then I did not used the flight from Dulles to Savannah

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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