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 46% 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?

Lufthansa 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 September 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.

$400 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.

11:20 am - 1:05 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

17h 45m2 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National

3:15 pm - 8:27 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

37h 12m2 stops Zurich Montreal Pierre Elliott Trudeau Intl

$852Multiple Airlines

Tue, Feb 9 - Wed, Feb 17

3:55 pm - 9:20 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

21h 25m1 stop Frankfurt am Main

6:40 am - 1:40 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

15h 00m1 stop Frankfurt am Main

$858Multiple Airlines

Tue, Feb 9 - Wed, Feb 17

11:20 am - 10:05 amDEN Denver Intl-LJU Ljubljana Joze Pucnik

14h 45m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main

10:45 am - 3:35 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

12h 50m1 stop Frankfurt am Main

$861United Airlines

Mon, Mar 1 - Thu, Mar 4

8:17 am - 10:05 amDEN Denver Intl-LJU Ljubljana Joze Pucnik

17h 48m2 stops Chicago O'Hare Intl Frankfurt am Main

6:40 am - 1:40 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

15h 00m1 stop Frankfurt am Main

$862United Airlines

Mon, Mar 1 - Thu, Mar 4

9:48 am - 10:05 amDEN Denver Intl-LJU Ljubljana Joze Pucnik

16h 17m2 stops Chicago O'Hare Intl Frankfurt am Main

6:40 am - 1:40 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

15h 00m1 stop Frankfurt am Main

$862United Airlines

Mon, Mar 1 - Thu, Mar 4

3:40 pm - 9:20 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

21h 40m3 stops Reykjavik Keflavik Intl London Heathrow Frankfurt am Main

6:40 am - 6:00 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

19h 20m3 stops Frankfurt am Main London Heathrow Reykjavik Keflavik Intl

$892Multiple Airlines

Fri, Nov 6 - Fri, Nov 13

8:25 pm - 6:45 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

15h 20m1 stop Istanbul

7:40 pm - 7:25 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

30h 45m1 stop Istanbul

$911Turkish Airlines

Sat, Oct 24 - Sat, Oct 31

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

14h 15m1 stop Istanbul

9:20 am - 5:25 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

16h 05m1 stop Istanbul

$937Turkish Airlines

Fri, Nov 6 - Fri, Nov 13

4:05 pm - 12:35 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

12h 30m1 stop Munich Franz Josef Strauss

6:40 am - 4:35 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

16h 55m1 stop Frankfurt am Main

$1,057Lufthansa

Fri, Oct 23 - Fri, Oct 30

5:40 pm - 9:55 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

20h 15m1 stop Frankfurt am Main

6:40 am - 2:25 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

14h 45m1 stop Frankfurt am Main

$1,060Lufthansa

Wed, Oct 21 - Wed, Oct 28

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Turkish Airlines flights from Denver to Slovenia

Our best Turkish Airlines deals on Denver to Slovenia flight tickets

Turkish Airlines

Oct 24

DEN8:25 pmDenver Intl

15h 20m

1 stop

LJU6:45 pmLjubljana Joze Pucnik

Oct 31

LJU7:40 pmLjubljana Joze Pucnik

30h 45m

1 stop

DEN7:25 pmDenver Intl

$911

Turkish Airlines

Nov 6

DEN8:30 pmDenver Intl

14h 15m

1 stop

LJU6:45 pmLjubljana Joze Pucnik

Nov 13

LJU9:20 amLjubljana Joze Pucnik

16h 05m

1 stop

DEN5:25 pmDenver Intl

$937

Turkish Airlines

Oct 24

DEN6:00 amDenver Intl

29h 45m

2 stops

LJU7:45 pmLjubljana Joze Pucnik

Oct 31

LJU7:40 pmLjubljana Joze Pucnik

30h 45m

1 stop

DEN7:25 pmDenver Intl

$955

Lufthansa flights from Denver to Slovenia

Our best Lufthansa deals on Denver to Slovenia flight tickets

Lufthansa

Oct 23

DEN4:05 pmDenver Intl

12h 30m

1 stop

LJU12:35 pmLjubljana Joze Pucnik

Oct 30

LJU6:40 amLjubljana Joze Pucnik

16h 55m

1 stop

DEN4:35 pmDenver Intl

$1,057

Lufthansa

Oct 21

DEN5:40 pmDenver Intl

20h 15m

1 stop

LJU9:55 pmLjubljana Joze Pucnik

Oct 28

LJU6:40 amLjubljana Joze Pucnik

14h 45m

1 stop

DEN2:25 pmDenver Intl

$1,060

Lufthansa

Oct 11

DEN4:05 pmDenver Intl

12h 30m

1 stop

LJU12:35 pmLjubljana Joze Pucnik

Oct 18

LJU8:05 pmLjubljana Joze Pucnik

26h 15m

1 stop

DEN2:20 pmDenver Intl

$1,084

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Tue 2/9

11:20 am-1:05 pm

2 stops17h 45m

Ljubljana Joze Pucnik

Wed 2/17

3:15 pm-8:27 pm

2 stops37h 12m

$852

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Tue 2/9

3:55 pm-9:20 pm

1 stop21h 25m

Ljubljana Joze Pucnik

Wed 2/17

6:40 am-1:40 pm

1 stop15h 00m

$858

Quickest round-trip

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Mon 3/1

11:20 am-10:05 am

2 stops14h 45m

Ljubljana Joze Pucnik

Thu 3/4

10:45 am-3:35 pm

1 stop12h 50m

$861

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Mon 3/1

8:17 am-10:05 am

2 stops17h 48m

Ljubljana Joze Pucnik

Thu 3/4

6:40 am-1:40 pm

1 stop15h 00m

$862

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Mon 3/1

9:48 am-10:05 am

2 stops16h 17m

Ljubljana Joze Pucnik

Thu 3/4

6:40 am-1:40 pm

1 stop15h 00m

$862

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Fri 11/6

3:40 pm-9:20 pm

3 stops21h 40m

Ljubljana Joze Pucnik

Fri 11/13

6:40 am-6:00 pm

3 stops19h 20m

$892

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Sat 10/24

8:25 pm-6:45 pm

1 stop15h 20m

Ljubljana Joze Pucnik

Sat 10/31

7:40 pm-7:25 pm

1 stop30h 45m

$911

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Fri 11/6

8:30 pm-6:45 pm

1 stop14h 15m

Ljubljana Joze Pucnik

Fri 11/13

9:20 am-5:25 pm

1 stop16h 05m

$937

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Fri 10/23

4:05 pm-12:35 pm

1 stop12h 30m

Ljubljana Joze Pucnik

Fri 10/30

6:40 am-4:35 pm

1 stop16h 55m

$1,057

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Wed 10/21

5:40 pm-9:55 pm

1 stop20h 15m

Ljubljana Joze Pucnik

Wed 10/28

6:40 am-2:25 pm

1 stop14h 45m

$1,060

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 45% 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	$400
Fastest flight time	16h 17m
Direct flights	None

The best one-way flight to Slovenia from Denver in the past 72 hours is $400. The best round-trip flight deal from Denver to Slovenia found on momondo in the last 72 hours is $852.

The fastest flight from Denver to Slovenia takes 16h 17m

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 September 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 4,460 reviews	Search Turkish Airlines flights
Lufthansa	PriceFrom $947	Free Cancellation	Rating 6.8 8,235 reviews	Search Lufthansa flights
United Airlines	PriceFrom $987	Free Cancellation	Rating 7.4 10,234 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 $400

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 11/7. 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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Turkish Airlines flights from Denver to Slovenia

Our best Turkish 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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See travel insights to Slovenia from

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

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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

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

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According to popular flight searches on momondo this year