DEN - LJU

$429 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 9/19. 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, 0 bags

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

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Everything you should know

Cheapest round-trip
$920
Typical prices: $1,092-$892
Turkish Airlines
Thu 9/17Sat 9/26
DEN - LJU • 1 stop
Cheapest one-way
$429
Multiple Airlines
Sat 9/19
DEN - LJU • 2 stops
Top airlines
Cheapest • from $920 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Denver and Ljubljana. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $1,021 (round-trip)
Shortest trip • 13h 24m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ljubljana!
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 17 - Sat, Sep 26
Turkish Airlines Logo
8:25 pm - 12:55 pm
DEN
-
LJU
32h 30m
1 stop
Turkish Airlines Logo
9:40 am - 6:25 pm
LJU
-
DEN
16h 45m
1 stop
$920Turkish Airlines
Thu, Oct 1 - Sat, Oct 10
Turkish Airlines Logo
8:25 pm - 12:55 pm
DEN
-
LJU
32h 30m
1 stop
Turkish Airlines Logo
8:15 pm - 6:25 pm
LJU
-
DEN
30h 10m
1 stop
$921Turkish Airlines
Sun, Oct 11 - Mon, Oct 26
Turkish Airlines Logo
8:25 pm - 7:20 pm
DEN
-
LJU
14h 55m
1 stop
Turkish Airlines Logo
9:10 am - 6:25 pm
LJU
-
DEN
16h 15m
1 stop
$929Turkish Airlines
Thu, Aug 27 - Tue, Sep 8
Turkish Airlines Logo
8:25 pm - 8:45 am
DEN
-
LJU
28h 20m
1 stop
Turkish Airlines Logo
9:40 am - 6:25 pm
LJU
-
DEN
16h 45m
1 stop
$939Turkish Airlines
Sat, Sep 19 - Sat, Oct 3
Turkish Airlines Logo
8:25 pm - 7:20 pm
DEN
-
LJU
14h 55m
1 stop
Turkish Airlines Logo
9:40 am - 6:25 pm
LJU
-
DEN
16h 45m
1 stop
$940Turkish Airlines
Tue, Sep 1 - Thu, Sep 10
Turkish Airlines Logo
8:25 pm - 8:45 am
DEN
-
LJU
28h 20m
1 stop
Turkish Airlines Logo
9:40 am - 6:25 pm
LJU
-
DEN
16h 45m
1 stop
$943Turkish Airlines
Sun, Oct 11 - Wed, Oct 21
Turkish Airlines Logo
8:25 pm - 8:45 am
DEN
-
LJU
28h 20m
1 stop
Turkish Airlines Logo
1:50 pm - 6:25 pm
LJU
-
DEN
36h 35m
1 stop
$947Turkish Airlines
Wed, Aug 19 - Wed, Aug 26
Lufthansa Logo
4:15 pm - 12:35 pm
DEN
-
LJU
12h 20m
1 stop
Lufthansa Logo
10:10 am - 3:40 pm
LJU
-
DEN
13h 30m
1 stop
$950Lufthansa
Wed, Sep 2 - Fri, Sep 18
Lufthansa Logo
4:15 pm - 12:35 pm
DEN
-
LJU
12h 20m
1 stop
Lufthansa Logo
6:35 am - 3:40 pm
LJU
-
DEN
17h 05m
1 stop
$954Lufthansa
Wed, Sep 2 - Fri, Sep 18
Lufthansa Logo
5:40 pm - 9:55 pm
DEN
-
LJU
20h 15m
1 stop
Lufthansa Logo
6:35 am - 3:40 pm
LJU
-
DEN
17h 05m
1 stop
$966Lufthansa
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.

How much is a round-trip flight from Denver to Ljubljana?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Ljubljana departing in September.

What is the cheapest month to fly from Denver to Ljubljana?

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

The cheapest month for flights from Denver to Ljubljana is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are October and June, where the average cost of round-trip tickets is $1,498 and $1,433 respectively.

Good to know

Low seasonFebruary
Cheapest flight$429
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 12% 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 7 days, the lowest price for a flight from Denver to Ljubljana was $429 for a one-way ticket and $920 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 is the only airline alliance operating flights between Denver and Ljubljana.

  • 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 $936 and an overall rating of 7.4, Turkish Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $1,288 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.
7.4
Turkish AirlinesOverall score based on 4407 reviews
7.3Boarding
7.5Entertainment
7.5Food
7.8Crew
7.3Comfort
Airline reviews

Excellent experience with business class area. Staff was attentive and food was amazing. Only one bathroom for business class which was logistically difficult for the staff while preparing meals. Need to offer fluids with meals. I did not get enough water to drink. But overall I rate it 5 star.

10.0 ExcellentAnonymous, May 2026
SFO - IST
Read more Turkish Airlines reviews

Excellent experience with business class area. Staff was attentive and food was amazing. Only one bathroom for business class which was logistically difficult for the staff while preparing meals. Need to offer fluids with meals. I did not get enough water to drink. But overall I rate it 5 star.

On time, great food, good drink selection! Only down was alcohol-free lounge. Lufthansa had a much better offering!

Be honest of what you sell: This was sold as Business Class on all three legs, while the JetBlue plane didn't even have business class seats, and wanted $164 for extra legroom seats.

Seat assignments for family traveling with 2 children. Loud crowd during sleep time

It was crowded… the bathrooms dirty and smelly. The seats have been made even smaller.

delayed to take off from detroit by 3 hours lost baggage in istanbul and now in venice without baggage

Seats were very tight with poor legroom - and I am average height. During the 12 hour flight, tiny paper cups of drinks we're only offered during the super and breakfast services, with the crew nowhere to be seen in between. One of the bathrooms was out of order, leading to long lines waiting to use the remaining two available to the economy class passengers.

short flight but we still got a very nice lunch and the crew did an excellent job in taking care of us

For that price on Business class, I expected to have the pod seats. These were configured as 2/3/2 and my seat mate talked half the flight with a friend across the isle, loudly. Very uncouth.

The ground crew members at check in counter were courteous. The boarding was seamless. Flight departed as scheduled. Service on board was great

Put me on standby; flight was late; missed my connecting flight; disaster

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Parents with permanently crying baby on board. Neither parents nor crew did anything to calm the baby. The food was extremely disappointing. Seafood stew was very, very small! Not even appetizer size! Seat had a gap in the back. Had to use a pillow to fill it.

Food choices limited & not enticing Seats quite uncomfortable & difficult to control

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

Information on your arrival and departure airports