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$442+ Cheap flights from Denver (DEN) to Slovenia

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LJU
Mar 9 — Mar 161
Sun 3/9
Sun 3/16
1 adult, Economy
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Cheap flight deals from Denver to Slovenia

Keep the following information in mind while searching for Denver to Slovenia flight deals. Data was last updated March 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$641
(Justfly.com)

One-way from

$442
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$692
Provider with most accurate pricing for Denver Intl-Ljubljana Joze Pucnik flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Ljubljana Joze Pucnik flights.
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From Denver Intl to Slovenia
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One-way flight from Denver Intl to Slovenia
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Highest demand for flights based on searches. 32% potential increase in price ($686 potential increase over avg. RT price).
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Cheapest flight prices on average. 17% potential price decrease ($207 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Denver to Slovenia

Cheapest flights from Denver to Slovenia
Explore the most affordable flight options available from Denver to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 4, 2025.

This Justfly.com deal was found by Cheapflights users on 3/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/177:50 pmDEN - LJU
1 stop28h 40mTurkish Airlines
Sun 4/279:25 amLJU - DEN
1 stop16h 30mTurkish Airlines
Deal found 3/2$641
This SmartFares deal was found by Cheapflights users on 3/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/305:40 pmDEN - LJU
1 stop33h 55mAir France
Sat 4/512:35 pmLJU - DEN
2 stops41h 03mAir France
Deal found 3/3$795
This Finnair deal was found by Cheapflights users on 3/4. 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 4/224:07 pmDEN - LJU
2 stops32h 38mMultiple Airlines
Wed 5/76:00 pmLJU - DEN
1 stop30h 25mMultiple Airlines
Deal found 3/4$911
This oojo deal was found by Cheapflights users on 3/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/224:07 pmDEN - LJU
2 stops17h 08mBritish Airways
Wed 5/76:00 pmLJU - DEN
2 stops29h 49mBritish Airways
Deal found 3/3$926
This Gurufare deal was found by Cheapflights users on 3/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2811:25 amDEN - LJU
2 stops14h 10mLufthansa
Sat 6/710:05 amLJU - DEN
2 stops22h 10mLufthansa
Deal found 3/3$1,585

Find flights from Denver to Slovenia within your budget

Customize your flight search to find flights from Denver to Slovenia 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 March 4, 2025.

Fly from

Denver

Fly to

Slovenia

Route

Depart

Return

Price

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Thu 4/17

7:50 pm-8:30 am

1 stop28h 40m

Ljubljana Joze Pucnik

Sun 4/27

9:25 am-5:55 pm

1 stop16h 30m

$641

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Sun 3/30

5:40 pm-11:35 am

1 stop33h 55m

Ljubljana Joze Pucnik

Sat 4/5

12:35 pm-9:38 pm

2 stops41h 03m

$795

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Tue 4/22

4:07 pm-8:45 am

2 stops32h 38m

Ljubljana Joze Pucnik

Wed 5/7

6:00 pm-4:25 pm

1 stop30h 25m

$911

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Tue 4/22

4:07 pm-5:15 pm

2 stops17h 08m

Ljubljana Joze Pucnik

Wed 5/7

6:00 pm-3:49 pm

2 stops29h 49m

$926

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Wed 5/28

11:25 am-9:35 am

2 stops14h 10m

Ljubljana Joze Pucnik

Sat 6/7

10:05 am-12:15 am

2 stops22h 10m

$1,585

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Tue 6/10

12:15 pm-5:45 pm

3 stops45h 30m

$442

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Fri 8/22

12:33 pm-7:20 pm

2 stops22h 47m

$723

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Fri 8/22

4:15 pm-7:25 pm

1 stop19h 10m

$860

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Sun 6/15

5:50 pm-10:05 am

1 stop32h 15m

$1,164

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Sun 6/8

12:59 am-11:35 am

2 stops26h 36m

$1,168

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Best time to book a flight from Denver to Slovenia

Have a flexible travel schedule? Discover the best time to fly to Slovenia 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.

Travel insights for flights from Denver to Slovenia

Get recent, data-driven insights about flights from Denver to Slovenia including ideal travel times, pricing trends, and more.

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

Find hourly flight availability from Denver to Slovenia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 4, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to Slovenia as you normally would.

Rainfall in Slovenia by month

Plan your trip to Slovenia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Slovenia ranges from 1.6 - 2.8 inches per month. October is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Slovenia when rainfall is around 1.6 in.

Temperature in Slovenia by month

Plan your trip to Slovenia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Slovenia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Slovenia

Get insights into the airlines that provide service to Slovenia. 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 Slovenia. Reviews last updated March 4, 2025.
Delta
8.0
Very good
8,070 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,070 reviews
Delta
8.0
Very good
8,070 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,560 reviews
Delta
8.0
Very good
8,070 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,435 reviews
Delta
8.0
Very good
8,070 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Turkish Airlines
7.3
Good
3,795 reviews
Delta
8.0
Very good
8,070 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Lufthansa
6.7
Okay
6,970 reviews
Delta
8.0
Very good
8,070 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What airport do you fly from for flights from Denver to Slovenia?

    Most people fly from Denver Intl (DEN) if they book a flight from Denver to Slovenia. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

  • What are the cheapest airlines to fly from Denver to Slovenia one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $723. Lufthansa flights start at $860 while deals on SWISS start at $1,164 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver to Slovenia 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 Slovenia?

    Currently, February is the cheapest month in which you can book a flight from Denver to Slovenia (average of $710). Flying from Denver to Slovenia in June is currently the most expensive (average of $1,520). 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 Slovenia

Discover the top 2 airlines that operate flights from Denver to Slovenia. 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 March 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$593Average$660FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$878Average$1,243FlexibilityNo cancel feeOn-time76%
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