What airlines fly to Slovenia?

Lufthansa, Turkish Airlines and United Airlines are the top three most popular airlines that fly to Slovenia from Denver according to our data. Lufthansa is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Slovenia. Keep in mind that there are 3 different airlines that fly to Slovenia on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Denver Intl to Slovenia?

Turkish Airlines is the most popular carrier operating from Denver Intl to Slovenia

When did momondo last update prices for flights from Denver Intl Airport to Slovenia?

Prices for flights from Denver Intl Airport to Slovenia were last updated today.

How many operators does momondo search for flights from Denver Intl Airport to Slovenia?

As of November 2026, there are 3 operators available to choose from for flights from Denver Intl Airport to Slovenia.

How old do you have to be to fly from Denver Intl Airport to Slovenia?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Slovenia.

What documentation or ID do you need to fly to Slovenia?

The required travel and health documents for your Slovenia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Slovenia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$369 Cheap Flights from Denver to Slovenia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Slovenia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:15 pm - 12:25 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

12h 10m1 stop Munich Franz Josef Strauss

1:55 pm - 10:39 amLJU Ljubljana Joze Pucnik-DEN Denver Intl

28h 44m2 stops Munich Franz Josef Strauss Montreal Pierre Elliott Trudeau Intl

$844Multiple Airlines

Wed, May 5 - Wed, May 12

4:15 pm - 12:25 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

12h 10m1 stop Munich Franz Josef Strauss

6:25 am - 3:40 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

17h 15m1 stop Frankfurt am Main

$851Lufthansa

Wed, May 5 - Wed, May 12

11:40 pm - 12:40 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

29h 00m2 stops Newark Munich Franz Josef Strauss

10:10 am - 3:40 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

13h 30m1 stop Frankfurt am Main

$859United Airlines

Sat, Apr 10 - Wed, Apr 21

4:45 pm - 12:40 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

35h 55m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:25 am - 3:40 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

17h 15m1 stop Frankfurt am Main

$865Lufthansa

Sat, Apr 10 - Wed, Apr 21

11:40 pm - 12:40 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

29h 00m2 stops Newark Munich Franz Josef Strauss

10:10 am - 10:28 amLJU Ljubljana Joze Pucnik-DEN Denver Intl

32h 18m2 stops Frankfurt am Main Toronto Pearson Intl

$866United Airlines

Sat, Apr 10 - Wed, Apr 21

4:45 pm - 12:40 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

35h 55m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:25 am - 3:40 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

17h 15m1 stop Frankfurt am Main

$866Lufthansa

Sat, Apr 10 - Wed, Apr 21

12:24 pm - 5:40 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

21h 16m2 stops Chicago O'Hare Intl London Heathrow

6:00 pm - 11:59 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

37h 59m2 stops London Heathrow Chicago O'Hare Intl

$871British Airways

Wed, May 5 - Wed, May 12

5:30 pm - 2:00 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

36h 30m2 stops Toronto Pearson Intl Zurich

6:15 am - 8:14 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

21h 59m2 stops Zurich Montreal Pierre Elliott Trudeau Intl

$875Multiple Airlines

Sat, Apr 10 - Wed, Apr 21

8:30 pm - 7:40 amDEN Denver Intl-LJU Ljubljana Joze Pucnik

28h 10m1 stop Istanbul

8:20 pm - 6:20 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

30h 00m1 stop Istanbul

$933Turkish Airlines

Fri, Mar 26 - Sun, Apr 4

8:30 pm - 6:45 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

15h 15m1 stop Istanbul

9:35 am - 6:20 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

16h 45m1 stop Istanbul

$959Turkish Airlines

Fri, Mar 26 - Sat, Apr 3

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United Airlines flights from Denver to Slovenia

Our best United Airlines deals on Denver to Slovenia flight tickets

United Airlines

Apr 10

DEN11:40 pmDenver Intl

29h 00m

2 stops

LJU12:40 pmLjubljana Joze Pucnik

Apr 21

LJU10:10 amLjubljana Joze Pucnik

13h 30m

1 stop

DEN3:40 pmDenver Intl

$859

United Airlines

Apr 10

DEN11:40 pmDenver Intl

29h 00m

2 stops

LJU12:40 pmLjubljana Joze Pucnik

Apr 21

LJU10:10 amLjubljana Joze Pucnik

32h 18m

2 stops

DEN10:28 amDenver Intl

$866

United Airlines

Mar 21

DEN11:25 amDenver Intl

15h 40m

2 stops

LJU10:05 amLjubljana Joze Pucnik

Mar 25

LJU6:40 amLjubljana Joze Pucnik

16h 55m

1 stop

DEN4:35 pmDenver Intl

$869

Lufthansa flights from Denver to Slovenia

Our best Lufthansa deals on Denver to Slovenia flight tickets

Lufthansa

May 5

DEN4:15 pmDenver Intl

12h 10m

1 stop

LJU12:25 pmLjubljana Joze Pucnik

May 12

LJU6:25 amLjubljana Joze Pucnik

17h 15m

1 stop

DEN3:40 pmDenver Intl

$851

Lufthansa

Apr 10

DEN4:45 pmDenver Intl

35h 55m

2 stops

LJU12:40 pmLjubljana Joze Pucnik

Apr 21

LJU6:25 amLjubljana Joze Pucnik

17h 15m

1 stop

DEN3:40 pmDenver Intl

$865

Lufthansa

Apr 22

DEN4:00 pmDenver Intl

19h 35m

1 stop

LJU7:35 pmLjubljana Joze Pucnik

Apr 28

LJU10:10 amLjubljana Joze Pucnik

13h 30m

1 stop

DEN3:40 pmDenver Intl

$878

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Wed 5/5

4:15 pm-12:25 pm

1 stop12h 10m

Ljubljana Joze Pucnik

Wed 5/12

1:55 pm-10:39 am

2 stops28h 44m

$844

Quickest round-trip

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Wed 5/5

4:15 pm-12:25 pm

1 stop12h 10m

Ljubljana Joze Pucnik

Wed 5/12

6:25 am-3:40 pm

1 stop17h 15m

$851

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Sat 4/10

11:40 pm-12:40 pm

2 stops29h 00m

Ljubljana Joze Pucnik

Wed 4/21

10:10 am-3:40 pm

1 stop13h 30m

$859

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Sat 4/10

4:45 pm-12:40 pm

2 stops35h 55m

Ljubljana Joze Pucnik

Wed 4/21

6:25 am-3:40 pm

1 stop17h 15m

$865

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Sat 4/10

11:40 pm-12:40 pm

2 stops29h 00m

Ljubljana Joze Pucnik

Wed 4/21

10:10 am-10:28 am

2 stops32h 18m

$866

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Sat 4/10

4:45 pm-12:40 pm

2 stops35h 55m

Ljubljana Joze Pucnik

Wed 4/21

6:25 am-3:40 pm

1 stop17h 15m

$866

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Wed 5/5

12:24 pm-5:40 pm

2 stops21h 16m

Ljubljana Joze Pucnik

Wed 5/12

6:00 pm-11:59 pm

2 stops37h 59m

$871

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Sat 4/10

5:30 pm-2:00 pm

2 stops36h 30m

Ljubljana Joze Pucnik

Wed 4/21

6:15 am-8:14 pm

2 stops21h 59m

$875

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Fri 3/26

8:30 pm-7:40 am

1 stop28h 10m

Ljubljana Joze Pucnik

Sun 4/4

8:20 pm-6:20 pm

1 stop30h 00m

$933

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Fri 3/26

8:30 pm-6:45 pm

1 stop15h 15m

Ljubljana Joze Pucnik

Sat 4/3

9:35 am-6:20 pm

1 stop16h 45m

$959

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Denver to Slovenia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Slovenia?

The month of November is, on average, the cheapest month to fly to Slovenia from Denver, with most prices found around $0. The month of January is another great option to travel to Slovenia, with average flight prices from Denver averaging around $0.

Can stopping save me money on Denver to Slovenia flights?

You could potentially save up to 17% on your flight if you consider stops on a Denver to Slovenia flight.

Cheap Denver to Slovenia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Slovenia

Best Price Found	$369
Fastest flight time	12h 10m
Direct flights	None

The best one-way flight to Slovenia from Denver in the past 72 hours is $369. The best round-trip flight deal from Denver to Slovenia found on momondo in the last 72 hours is $844.

The fastest flight from Denver to Slovenia takes 12h 10m

There are no direct flights from Denver to Slovenia. There are no popular flight routes from Denver to Slovenia.

Search flight deals

Frequently asked questions about flying from Denver to Slovenia

When did momondo last update prices for flights from Denver Intl Airport to Slovenia?
Prices for flights from Denver Intl Airport to Slovenia were last updated today.
How many operators does momondo search for flights from Denver Intl Airport to Slovenia?
As of November 2026, there are 3 operators available to choose from for flights from Denver Intl Airport to Slovenia.
How old do you have to be to fly from Denver Intl Airport to Slovenia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Slovenia.
What documentation or ID do you need to fly to Slovenia?
The required travel and health documents for your Slovenia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Slovenia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Denver to Slovenia

Compare and see reviews for airlines that fly from Denver to Slovenia with momondo

Airline	Rating	Free Cancellation	Price
Turkish Airlines	PriceFrom $739	Free Cancellation	Rating 7.4 4,466 reviews	Search Turkish Airlines flights
Lufthansa	PriceFrom $952	Free Cancellation	Rating 6.8 8,294 reviews	Search Lufthansa flights
United Airlines	PriceFrom $987	Free Cancellation	Rating 7.3 10,485 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Slovenia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Denver to Slovenia for you.

Can I find flights from Denver to Slovenia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Denver to Slovenia flights to just show those with flexible booking policies.

How can momondo help me find flights from Denver to Slovenia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Slovenia from Denver.

I’m not ready to book a flight from Denver to Slovenia right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Denver to Slovenia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Flights to Ljubljanafrom $707

Flights to Mariborfrom $3,530

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Cheap flights from Denver to Slovenia from $369

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Slovenia departing on 3/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Denver to Slovenia

Our best United Airlines deals on Denver to Slovenia flight tickets

Lufthansa flights from Denver to Slovenia

Our best Lufthansa deals on Denver to Slovenia flight tickets

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How to get the cheapest flight ticket from Denver to Slovenia

What is the cheapest month to fly to Slovenia?

Can stopping save me money on Denver to Slovenia flights?

What is the cheapest airline that flies from Denver Intl to Slovenia?

What airlines fly to Slovenia?

Cheap Denver to Slovenia flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Denver to Slovenia

Best airlines flying from Denver to Slovenia

Compare and see reviews for airlines that fly from Denver to Slovenia with momondo

Why use momondo?

An easier way to manage your Slovenia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Slovenia

Popular cities in Slovenia

Popular flights according to clicks in the last 7 days on momondo

Denver flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Slovenia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Slovenia

List of cabin classes available on flights landing in Slovenia. Availability may vary depending on flight origin and airline.

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