DEN - LJU

$382 Find Cheap Flights from Denver 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 Denver to Ljubljana departing on 9/23. 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 Denver 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 Denver to Ljubljana, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Ljubljana (DEN-LJU)

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

Thu, Sep 4 - Thu, Sep 11
 Logo
4:40 pm - 8:15 amDEN-LJU
31h 35m3 stops
 Logo
6:40 am - 6:55 pmLJU-DEN
20h 15m3 stops
Thu, Sep 4 - Thu, Sep 11
 Logo
7:55 pm - 8:15 amDEN-LJU
28h 20m2 stops
 Logo
6:40 am - 5:59 pmLJU-DEN
19h 19m2 stops
Wed, Aug 27 - Thu, Sep 18
British Airways Logo
6:35 pm - 5:50 pmDEN-LJU
15h 15m1 stop
British Airways Logo
7:00 pm - 4:25 pmLJU-DEN
29h 25m1 stop
$797British Airways
Find Deal
Wed, Sep 10 - Thu, Sep 25
British Airways Logo
2:17 pm - 5:50 pmDEN-LJU
19h 33m2 stops
British Airways Logo
7:00 pm - 4:25 pmLJU-DEN
29h 25m1 stop
$801British Airways
Find Deal
Wed, Aug 27 - Thu, Sep 18
British Airways Logo
6:35 pm - 5:50 pmDEN-LJU
15h 15m1 stop
British Airways Logo
7:00 pm - 3:45 pmLJU-DEN
28h 45m2 stops
$808British Airways
Find Deal
Wed, Sep 10 - Thu, Sep 25
British Airways Logo
2:17 pm - 5:50 pmDEN-LJU
19h 33m2 stops
British Airways Logo
7:00 pm - 6:33 pmLJU-DEN
31h 33m2 stops
$817British Airways
Find Deal
Sun, Sep 7 - Sun, Sep 21
Turkish Airlines Logo
7:50 pm - 7:15 pmDEN-LJU
15h 25m1 stop
Turkish Airlines Logo
9:25 am - 5:55 pmLJU-DEN
16h 30m1 stop
$989Turkish Airlines
Find Deal
Fri, Sep 12 - Fri, Sep 26
Turkish Airlines Logo
7:50 pm - 7:15 pmDEN-LJU
15h 25m1 stop
Turkish Airlines Logo
9:25 am - 5:55 pmLJU-DEN
16h 30m1 stop
$1,009Turkish Airlines
Find Deal
Fri, Sep 5 - Tue, Sep 16
Lufthansa Logo
4:15 pm - 12:35 pmDEN-LJU
12h 20m1 stop
Lufthansa Logo
10:10 am - 3:35 pmLJU-DEN
13h 25m1 stop
$1,064Lufthansa
Find Deal
Sat, Oct 11 - Sat, Oct 18
Lufthansa Logo
5:58 pm - 1:20 pmDEN-LJU
35h 22m2 stops
Lufthansa Logo
1:50 pm - 3:35 pmLJU-DEN
33h 45m1 stop
$1,110Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for Denver to Ljubljana flights

Get data-powered insights and trends into flights from Denver 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 Denver to Ljubljana?

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

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

How far in advance should I book a flight from Denver 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 Denver 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 Denver to Ljubljana, you should book around 2 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$382
Best time to beat the crowds with an average 49% drop in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from Denver to Ljubljana

When to book flights from Denver to Ljubljana

Are your dates flexible? Find out the best times to travel from Denver 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 flights from Denver to Ljubljana

  • What is the cheapest flight from Denver to Ljubljana?

    In the last 3 days, the lowest price for a flight from Denver to Ljubljana was $382 for a one-way ticket and $760 for a round-trip.

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

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

  • Which airports will I be using when flying from Denver to Ljubljana?

    When flying out of Denver you will be using Denver Intl. You will be landing at Ljubljana, also known as Ljubljana Joze Pucnik.

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

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

  • Which airline alliances offer flights from Denver to Ljubljana?

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

  • Which is the best airline for flights from Denver to Ljubljana, Turkish Airlines or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Denver to Ljubljana are Turkish Airlines and Lufthansa. With an average price for the route of $707 and an overall rating of 7.3, Turkish Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $1,367 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Denver 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 Denver to Ljubljana.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ljubljana from Denver 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 Denver 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 Denver with another airline. Booking your flights between Denver 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 Denver 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 Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Denver to Ljubljana

 
See real verified KAYAK customer reviews for airlines flying from Denver 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 Denver 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.
7.3
Turkish AirlinesOverall score based on 3934 reviews
7.7Crew
7.4Entertainment
7.4Food
7.3Comfort
7.3Boarding
Airline reviews

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

2.0 MediocreTᴀᴍɪʟᴀ, Aug 2025SEA - IST
Read more Turkish Airlines reviews

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.

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

flight with heavy turbulence old boeing 777 rest wasnt clean dashboard doesn’t work

Light and recline did not work on my seat. Very uncomfortable and could not read in the dark

Bad experience; they are not good anymore. They charge too much for luggage seat are so uncomfortable, Flight delays which may miss your next flight, they don’t care if you miss the flight or not. Zero customer services for front desk representatives Istanbul's airport I’m not using this airline any more.

I’ve been traveling for 20 years. I tried Turkish airline for the first time horrible horrible service and it would be my last time even if I get offer for a free ticket, I will not accept it. They have races and the worst Flight attendant

It wasn't good. I didn’t understand. They changed 320 dollars for 2 luggage. My ticket was regular and I paid almost 1200.00 dollars. Why they did charge? I want my money back.. thanks Yılmaz polat

The seat I was stuck in was so unimaginably uncomfortable. I have never had that tight of a seat in my 20 years of flying. Even budget airlines give you more space.

We were upgraded to economy plus and everything was awesome!

I liked the crews attentiveness, all food and drink items were tasty, and came out in a timely manner. The entertainment systems were not as responsive and my seat had issues with the auxiliary for the headphones. Seats were OK, and the headrest for my seat could go back only so far. Bathrooms were tight fit.

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

Hate their old flights, boatding, food and services. Very poor quality

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The food could be better, more snacks. And have some plugs to chargue the phone.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Seating was average for a first class seat. It very modern. I expected better.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.