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Ljubljana

$640+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LJU
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Ljubljana Joze Pucnik are usually found in April or March, booked 12 days in advance, depart on a Thursday or Tuesday and return on a Thursday

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 July 3, 2025.

Round-trip from

$744
(FlightHub)

One-way from

$640
(British Airways)

Popular in

December

Cheapest in

April

Average price

$1,397
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. 40% potential increase in price ($841 potential increase over avg. RT price).
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Cheapest flight prices on average. 21% potential price decrease ($224 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This FlightHub deal was found by Cheapflights users on 7/2. 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.
Tue 8/197:50 pmDEN - LJU
1 stop15h 25mTurkish Airlines
Sat 8/309:25 amLJU - DEN
1 stop16h 30mTurkish Airlines
Deal found 7/2$744
This British Airways deal was found by Cheapflights users on 7/2. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/56:35 pmDEN - LJU
1 stop14h 40mBritish Airways
Wed 8/136:00 pmLJU - DEN
2 stops31h 46mBritish Airways
Deal found 7/2$813
This Finnair deal was found by Cheapflights users on 7/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/192:05 pmDEN - LJU
2 stops34h 40mMultiple Airlines
Tue 8/269:30 amLJU - DEN
2 stops33h 59mMultiple Airlines
Deal found 7/1$853
This deal was found by Cheapflights users on 6/30. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/64:15 pmDEN - LJU
1 stop12h 20mLufthansa
Thu 8/2110:10 amLJU - DEN
1 stop13h 25mLufthansa
Deal found 6/30$950
This Expedia deal was found by Cheapflights users on 7/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/134:15 pmDEN - LJU
2 stops18h 20mSWISS
Fri 10/312:20 pmLJU - DEN
2 stops38h 29mSWISS
Deal found 7/2$970

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 July 3, 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

Tue 8/19

7:50 pm-7:15 pm

1 stop15h 25m

Ljubljana Joze Pucnik

Sat 8/30

9:25 am-5:55 pm

1 stop16h 30m

$744

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Tue 8/5

6:35 pm-5:15 pm

1 stop14h 40m

Ljubljana Joze Pucnik

Wed 8/13

6:00 pm-5:46 pm

2 stops31h 46m

$813

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Tue 8/19

2:05 pm-8:45 am

2 stops34h 40m

Ljubljana Joze Pucnik

Tue 8/26

9:30 am-11:29 am

2 stops33h 59m

$853

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Wed 8/6

4:15 pm-12:35 pm

1 stop12h 20m

Ljubljana Joze Pucnik

Thu 8/21

10:10 am-3:35 pm

1 stop13h 25m

$950

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Mon 10/13

4:15 pm-6:35 pm

2 stops18h 20m

Ljubljana Joze Pucnik

Fri 10/31

2:20 pm-9:49 pm

2 stops38h 29m

$970

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Mon 9/15

6:35 pm-4:10 pm

1 stop13h 35m

$640

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Mon 9/15

4:15 pm-7:25 pm

1 stop19h 10m

$783

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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

How far ahead should I book a flight from Denver to Ljubljana?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Ljubljana. Price data was last updated on June 27, 2025.

The price you pay for your flight from Denver to Ljubljana may vary depending on when you book. For the best chance of a lower fare, look to book 9 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 July 3, 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.

How much does it cost to fly round-trip from Denver to Ljubljana?

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 July 3, 2025.
Read through reviews of airlines operating flights from Denver to Ljubljana, such as SWISS, Turkish Airlines, and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,654 reviews

Comfort

7.4

Boarding

7.6

Entertainment

6.8

Overall

7.5

Crew

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight
SWISS
7.5
Good
1,654 reviews
SWISS
7.5
Good
1,654 reviews

Comfort

7.4

Boarding

7.6

Entertainment

6.8

Overall

7.5

Crew

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight
Turkish Airlines
7.3
Good
3,895 reviews
SWISS
7.5
Good
1,654 reviews

Comfort

7.4

Boarding

7.6

Entertainment

6.8

Overall

7.5

Crew

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight
Lufthansa
6.8
Okay
7,207 reviews
SWISS
7.5
Good
1,654 reviews

Comfort

7.4

Boarding

7.6

Entertainment

6.8

Overall

7.5

Crew

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight
British Airways
6.6
Okay
7,093 reviews
SWISS
7.5
Good
1,654 reviews

Comfort

7.4

Boarding

7.6

Entertainment

6.8

Overall

7.5

Crew

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

Elwyn,Feb 2025

MXP - ZRH

The crew and the entire experience was fantastic! Would highly recommend the company and the flight

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.

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

    Cheapflights users have booked flights from Denver to Ljubljana round-trip from $744. Other airlines that can offer you cheap pricing are British Airways, from $813, and Lufthansa, from $950. You may be able to fly from Denver to Ljubljana for 40% 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 $1,449). 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

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$598Average$707FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$766Average$1,330FlexibilityNo cancel feeOn-time76%

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