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Slovenia

$342+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LJU
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This KAYAK deal was found by Cheapflights users on 1/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:40 pm
DEN
-
LJU
1 stop17h 50m
British Airways
Fri 5/19:15 pm
LJU
-
DEN
1 stop27h 15m
British Airways
Deal found 1/25$641
This oojo deal was found by Cheapflights users on 1/26. 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 4/1412:53 pm
DEN
-
LJU
2 stops20h 22m
British Airways
Fri 5/19:15 pm
LJU
-
DEN
1 stop27h 15m
British Airways
Deal found 1/26$645
This FlightHub deal was found by Cheapflights users on 1/25. 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.
Sat 4/256:40 pm
DEN
-
LJU
1 stop17h 55m
British Airways
Sat 5/212:20 pm
LJU
-
DEN
2 stops18h 20m
British Airways
Deal found 1/25$673
This FlightHub deal was found by Cheapflights users on 1/25. 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.
Sun 4/268:25 pm
DEN
-
LJU
1 stop28h 20m
Turkish Airlines
Sun 5/39:40 am
LJU
-
DEN
1 stop16h 45m
Turkish Airlines
Deal found 1/25$725
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Tue 4/288:25 pm
DEN
-
LJU
1 stop14h 55m
Turkish Airlines
Tue 5/59:40 am
LJU
-
DEN
1 stop16h 45m
Turkish Airlines
Deal found 1/25$769
This Ovago deal was found by Cheapflights users on 1/25. 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.
Sun 4/268:25 pm
DEN
-
LJU
1 stop14h 55m
Turkish Airlines
Mon 5/48:15 pm
LJU
-
DEN
1 stop30h 10m
Turkish Airlines
Deal found 1/25$780
This Ovago deal was found by Cheapflights users on 1/25. 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.
Sat 4/258:25 pm
DEN
-
LJU
1 stop14h 55m
Turkish Airlines
Tue 5/59:40 am
LJU
-
DEN
1 stop16h 45m
Turkish Airlines
Deal found 1/25$810
This KAYAK deal was found by Cheapflights users on 1/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:25 pm
DEN
-
LJU
1 stop14h 55m
Turkish Airlines
Tue 5/59:40 am
LJU
-
DEN
1 stop16h 45m
Turkish Airlines
Deal found 1/25$815
This Justfly.com deal was found by Cheapflights users on 1/25. 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.
Sat 5/28:25 pm
DEN
-
LJU
1 stop28h 20m
Turkish Airlines
Sun 5/179:40 am
LJU
-
DEN
1 stop16h 45m
Turkish Airlines
Deal found 1/25$817
This oojo deal was found by Cheapflights users on 1/25. 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.
Thu 5/148:25 pm
DEN
-
LJU
1 stop32h 30m
Turkish Airlines
Mon 5/258:15 pm
LJU
-
DEN
1 stop30h 10m
Turkish Airlines
Deal found 1/25$822
This Justfly.com deal was found by Cheapflights users on 1/25. 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 5/148:25 pm
DEN
-
LJU
1 stop14h 55m
Turkish Airlines
Sun 5/249:40 am
LJU
-
DEN
1 stop16h 45m
Turkish Airlines
Deal found 1/25$836

Find flight deals from Denver to Slovenia

Keep the following information in mind while searching for Denver to Slovenia flight deals. Data was last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$641
(KAYAK)

One-way from

$342
(Kiwi.com)

Popular in

June

Cheapest in

April
Provider with most accurate pricing for Denver Intl-Ljubljana Joze Pucnik flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Ljubljana Joze Pucnik flights.
Search Deals
From Denver Intl to Slovenia
Search Deals
One-way flight from Denver Intl to Slovenia
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($411 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($58 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
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 January 27, 2026.
Use the filters below to find and compare flights from Denver to Slovenia that are best for you.

Fly from

Denver

Fly to

Slovenia

Route

Depart

Return

Price

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Tue 4/28

6:40 pm-5:15 pm

1 stop14h 35m

Ljubljana Joze Pucnik

Mon 5/4

3:10 pm-4:30 pm

1 stop33h 20m

$641

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Thu 4/23

6:40 pm-8:30 pm

1 stop17h 50m

Ljubljana Joze Pucnik

Fri 5/1

9:15 pm-4:30 pm

1 stop27h 15m

$641

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Sat 4/25

6:40 pm-8:35 pm

1 stop17h 55m

Ljubljana Joze Pucnik

Mon 5/4

3:10 pm-4:30 pm

1 stop33h 20m

$641

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Tue 4/14

12:53 pm-5:15 pm

2 stops20h 22m

Ljubljana Joze Pucnik

Fri 5/1

9:15 pm-7:55 pm

2 stops30h 40m

$648

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Sat 4/25

8:25 pm-7:20 pm

1 stop14h 55m

Ljubljana Joze Pucnik

Tue 5/5

9:40 am-6:25 pm

1 stop16h 45m

$810

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Sun 4/26

8:40 am-2:15 pm

2 stops21h 35m

Ljubljana Joze Pucnik

Wed 5/6

6:00 pm-4:30 pm

1 stop30h 30m

$845

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Wed 4/29

9:18 am-5:40 pm

2 stops24h 22m

Ljubljana Joze Pucnik

Sun 5/3

9:25 pm-4:30 pm

1 stop27h 05m

$845

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Thu 4/23

9:18 am-8:30 pm

2 stops27h 12m

Ljubljana Joze Pucnik

Sat 5/2

12:20 pm-4:30 pm

1 stop36h 10m

$845

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Wed 4/29

10:36 am-5:40 pm

2 stops23h 04m

Ljubljana Joze Pucnik

Wed 5/6

6:00 pm-4:30 pm

1 stop30h 30m

$845

DenverLjubljana

DEN - LJU

DENLJU

Denver Intl

Sat 4/25

9:18 am-8:35 pm

2 stops27h 17m

Ljubljana Joze Pucnik

Fri 5/1

9:15 pm-4:30 pm

1 stop27h 15m

$845

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 21 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Denver to Slovenia
No data available for this route at this time. Please check back soon.

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 January 27, 2026.
Peruse reviews from past customers who have flown with Turkish Airlines and Lufthansa from Denver to Slovenia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.3
Good
4,207 reviews

Food

7.4

Boarding

7.3

Overall

7.3

Comfort

7.3

Crew

7.8

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Chandra,Nov 2025

ATL - IST

TV was not available in Indigo from Istanbul to Delhi. Seat was not moving back. It was jammed.
Turkish Airlines
7.3
Good
4,207 reviews
Turkish Airlines
7.3
Good
4,207 reviews

Food

7.4

Boarding

7.3

Overall

7.3

Comfort

7.3

Crew

7.8

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Chandra,Nov 2025

ATL - IST

TV was not available in Indigo from Istanbul to Delhi. Seat was not moving back. It was jammed.
Lufthansa
6.8
Okay
7,749 reviews
Turkish Airlines
7.3
Good
4,207 reviews

Food

7.4

Boarding

7.3

Overall

7.3

Comfort

7.3

Crew

7.8

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Chandra,Nov 2025

ATL - IST

TV was not available in Indigo from Istanbul to Delhi. Seat was not moving back. It was jammed.

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.

  • How long is the flight from Denver to Slovenia?

    There are many flights that can get you from Denver to Slovenia in 14h 35m. Fly via British Airways or Turkish Airlines to get the fastest option. The distance between Denver and Slovenia is about 5400 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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.

See more FAQs

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Alternative routes for Denver to Slovenia

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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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$642Average$740FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$907Average$1,260FlexibilityNo cancel feeOn-time76%

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