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Ljubljana

$422+ Cheap flights from Denver (DEN) to Ljubljana (LJU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LJU
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Denver to Ljubljana

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Ljubljana (LJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 20, 2025.

Round-trip from

$803
(FlightHub)

One-way from

$422
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,048
From Denver Intl to Ljubljana Joze Pucnik
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One-way flight from Denver Intl to Ljubljana Joze Pucnik
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Highest demand for flights based on searches. 39% potential increase in price ($826 potential increase over avg. RT price).
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Cheapest flight prices on average. 21% potential price decrease ($223 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Denver to Ljubljana

Cheapest flights from Denver to Ljubljana
Explore the most affordable flight options available from Denver to Ljubljana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:50 pmDEN - LJU
1 stop15h 25mTurkish Airlines
Tue 11/49:20 amLJU - DEN
1 stop16h 15mTurkish Airlines
Deal found 8/18$803
This Turkish Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/297:20 pmDEN - LJU
1 stop15h 20mTurkish Airlines
Wed 12/107:35 pmLJU - DEN
1 stop30h 00mTurkish Airlines
Deal found 8/20$825
This Delta deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/296:25 pmDEN - LJU
2 stops33h 15mDelta
Wed 12/1012:25 pmLJU - DEN
2 stops30h 12mDelta
Deal found 8/20$919
This Lufthansa deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:20 pmDEN - LJU
1 stop12h 20mLufthansa
Mon 12/88:10 pmLJU - DEN
1 stop26h 25mLufthansa
Deal found 8/20$921
This Lufthansa deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/305:45 pmDEN - LJU
1 stop19h 55mLufthansa
Mon 12/88:10 pmLJU - DEN
1 stop26h 25mLufthansa
Deal found 8/20$925
This Delta deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/13:40 pmDEN - LJU
2 stops36h 00mDelta
Mon 12/812:25 pmLJU - DEN
2 stops37h 57mDelta
Deal found 8/20$932
This Ovago deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/234:15 pmDEN - LJU
2 stops19h 10mLufthansa
Tue 11/46:35 amLJU - DEN
1 stop17h 25mLufthansa
Deal found 8/18$933
This Lufthansa deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/305:45 pmDEN - LJU
1 stop19h 55mLufthansa
Sun 12/710:35 amLJU - DEN
1 stop13h 25mLufthansa
Deal found 8/20$954
This Kiwi.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:20 pmDEN - LJU
1 stop15h 10mMultiple Airlines
Wed 12/1010:00 amLJU - DEN
1 stop12h 35mMultiple Airlines
Deal found 8/20$955
This KLM deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3010:50 amDEN - LJU
2 stops16h 50mKLM
Mon 12/812:25 pmLJU - DEN
2 stops37h 04mKLM
Deal found 8/20$957
This United deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3012:59 amDEN - LJU
2 stops29h 06mMultiple Airlines
Sun 12/72:30 pmLJU - DEN
2 stops33h 30mMultiple Airlines
Deal found 8/20$966

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Ljubljana that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Denver to Ljubljana that are best for you.

Fly from

Denver

Fly to

Ljubljana

Route

Depart

Return

Price

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Thu 10/23

7:50 pm-7:15 pm

1 stop15h 25m

Ljubljana Joze Pucnik

Tue 11/4

9:20 am-5:35 pm

1 stop16h 15m

$803

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Sat 11/29

7:20 pm-6:40 pm

1 stop15h 20m

Ljubljana Joze Pucnik

Tue 12/9

9:20 am-5:35 pm

1 stop16h 15m

$825

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Sat 11/29

7:20 pm-6:40 pm

1 stop15h 20m

Ljubljana Joze Pucnik

Sat 12/6

9:20 am-5:35 pm

1 stop16h 15m

$825

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Tue 12/2

7:20 pm-8:25 am

1 stop29h 05m

Ljubljana Joze Pucnik

Mon 12/8

7:35 pm-5:35 pm

1 stop30h 00m

$825

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Tue 12/2

7:20 pm-8:25 am

1 stop29h 05m

Ljubljana Joze Pucnik

Wed 12/10

7:35 pm-5:35 pm

1 stop30h 00m

$825

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Sat 11/29

7:20 pm-8:25 am

1 stop29h 05m

Ljubljana Joze Pucnik

Thu 12/4

9:20 am-5:35 pm

1 stop16h 15m

$825

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Thu 12/4

7:20 pm-8:25 am

1 stop29h 05m

Ljubljana Joze Pucnik

Mon 12/8

7:35 pm-5:35 pm

1 stop30h 00m

$825

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Tue 12/2

7:20 pm-6:40 pm

1 stop15h 20m

Ljubljana Joze Pucnik

Tue 12/9

9:20 am-5:35 pm

1 stop16h 15m

$825

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Sat 11/29

7:20 pm-8:25 am

1 stop29h 05m

Ljubljana Joze Pucnik

Mon 12/8

7:35 pm-5:35 pm

1 stop30h 00m

$825

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Thu 12/4

7:20 pm-8:25 am

1 stop29h 05m

Ljubljana Joze Pucnik

Wed 12/10

7:35 pm-5:35 pm

1 stop30h 00m

$825

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 16 results
1
2

Best time to book a flight from Denver to Ljubljana

Have a flexible travel schedule? Discover the best time to fly to Ljubljana from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest time of day to fly from DEN to LJU?

Find hourly flight availability from Denver to Ljubljana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

It’s optimal to fly from Denver to Ljubljana in the evening. By choosing this option you can save up to 69% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Ljubljana

Get insights into the airlines that provide service to Ljubljana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ljubljana. Reviews last updated August 20, 2025.
Read through reviews of airlines operating flights from Denver to Ljubljana, such as Turkish Airlines and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.3
Good
3,949 reviews

Comfort

7.3

Food

7.4

Boarding

7.3

Overall

7.3

Crew

7.7

Entertainment

7.4

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
Turkish Airlines
7.3
Good
3,949 reviews
Turkish Airlines
7.3
Good
3,949 reviews

Comfort

7.3

Food

7.4

Boarding

7.3

Overall

7.3

Crew

7.7

Entertainment

7.4

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
Lufthansa
6.8
Okay
7,337 reviews
Turkish Airlines
7.3
Good
3,949 reviews

Comfort

7.3

Food

7.4

Boarding

7.3

Overall

7.3

Crew

7.7

Entertainment

7.4

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.

Related info for your journey

Find useful and relevant information for your journey from Denver to Ljubljana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Denver to Ljubljana?

    A quick flight from Denver to Ljubljana can take about 15h 25m. Turkish Airlines provides one of the quickest options available for as low as $803. The distance from Denver to Ljubljana is about 5400 mi.

  • What are the cheapest airlines flying from Denver to Ljubljana round-trip?

    Cheapflights users have booked flights from Denver to Ljubljana round-trip from $598. Another airline that can offer you cheap pricing is Lufthansa. You may be able to fly from Denver to Ljubljana for 52% less than the average price by searching for these airlines.

  • Can I find deals for flights from Denver to Ljubljana that include hotel bookings?

    Yes. In addition to deals on Denver to Ljubljana flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Ljubljana?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Ljubljana.

  • Can I find deals for business class flights from Denver to Ljubljana?

    Yes. Cheapflights offers flight deals from Denver to Ljubljana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Ljubljana?

    Currently, February is the cheapest month in which you can book a flight from Denver to Ljubljana (average of $710). Flying from Denver to Ljubljana in June is currently the most expensive (average of $1,443). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ljubljana?

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Kranjska Gora

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Top 2 airlines flying from Denver to Ljubljana

Discover the top 2 airlines that operate flights from Denver to Ljubljana. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$598Average$706FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$766Average$1,307FlexibilityNo cancel feeOn-time76%

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