How long is the flight from Colorado to Slovenia?

The flight from Colorado to Slovenia depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Denver (a popular airport in Colorado) to Ljubljana (the most popular airport in Slovenia), then the flight time is 12h 10m on average. If you fly from Colorado Springs (another popular airport in Colorado) to Ljubljana, then the average flight time is 20h 18m.

What is the cheapest airline that flies from Colorado to Slovenia?

SWISS and United Airlines are the most popular carriers operating from Colorado to Slovenia

What airlines fly to Slovenia?

Lufthansa, Turkish Airlines and United Airlines are the top three most popular airlines that fly to Slovenia from Colorado 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.

When did momondo last update prices for flights from Colorado to Slovenia?

Prices for flights from Colorado to Slovenia were last updated today.

How many operators does momondo search for flights from Colorado to Slovenia?

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

How old do you have to be to fly from Colorado to Slovenia?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado 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.

$380 Cheap Flights from Colorado to Slovenia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Slovenia

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Cheap round-trip flights

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9:44 am - 10:05 amDEN Denver Intl-LJU Ljubljana Joze Pucnik

16h 21m2 stops Toronto Pearson Intl Frankfurt am Main

10:45 am - 12:16 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

33h 31m2 stops Frankfurt am Main Calgary

$848Multiple Airlines

Wed, Feb 10 - Tue, Feb 16

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

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

2:50 pm - 7:54 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

37h 04m2 stops Zurich Chicago O'Hare Intl

$862Multiple Airlines

Sat, Apr 10 - Mon, Apr 26

11:25 am - 10:05 amDEN Denver Intl-LJU Ljubljana Joze Pucnik

14h 40m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main

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

15h 00m1 stop Frankfurt am Main

$868United Airlines

Mon, Mar 1 - Thu, Mar 4

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

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

8:20 pm - 2:15 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

25h 55m1 stop Munich Franz Josef Strauss

$875Lufthansa

Sat, Apr 10 - Mon, Apr 26

11:25 am - 10:05 amDEN Denver Intl-LJU Ljubljana Joze Pucnik

14h 40m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main

10:45 am - 4:50 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

38h 05m2 stops Frankfurt am Main Toronto Pearson Intl

$876United Airlines

Mon, Mar 1 - Thu, Mar 4

6:40 pm - 8:35 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

17h 55m1 stop London Heathrow

3:10 pm - 4:30 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

33h 20m1 stop London Heathrow

$910British Airways

Sat, Apr 10 - Mon, Apr 26

4:00 pm - 7:35 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

19h 35m1 stop Munich Franz Josef Strauss

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

13h 30m1 stop Frankfurt am Main

$925Lufthansa

Thu, Apr 8 - Sun, Apr 18

7:30 pm - 6:45 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

15h 15m1 stop Istanbul

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

16h 05m1 stop Istanbul

$938Turkish Airlines

Mon, Nov 30 - Mon, Dec 7

7:30 pm - 8:25 amDEN Denver Intl-LJU Ljubljana Joze Pucnik

28h 55m1 stop Istanbul

7:40 pm - 5:25 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

29h 45m1 stop Istanbul

$938Turkish Airlines

Wed, Jan 27 - Sun, Feb 7

6:00 am - 10:05 amDEN Denver Intl-LJU Ljubljana Joze Pucnik

20h 05m2 stops Chicago O'Hare Intl Frankfurt am Main

10:45 am - 11:27 amLJU Ljubljana Joze Pucnik-DEN Denver Intl

56h 42m3 stops Frankfurt am Main Washington, D.C. Dulles Intl Houston George Bush Intcntl

$1,007United Airlines

Mon, Nov 30 - Mon, Dec 7

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Turkish Airlines flights from Colorado to Slovenia

Our best Turkish Airlines deals on Colorado to Slovenia flight tickets

Turkish Airlines

Nov 30

DEN7:30 pmDenver Intl

15h 15m

1 stop

LJU6:45 pmLjubljana Joze Pucnik

Dec 7

LJU9:20 amLjubljana Joze Pucnik

16h 05m

1 stop

DEN5:25 pmDenver Intl

$938

Turkish Airlines

Jan 22

DEN7:30 pmDenver Intl

15h 15m

1 stop

LJU6:45 pmLjubljana Joze Pucnik

Mar 7

LJU9:20 amLjubljana Joze Pucnik

16h 05m

1 stop

DEN5:25 pmDenver Intl

$943

Turkish Airlines

Jan 27

DEN6:00 amDenver Intl

28h 45m

2 stops

LJU6:45 pmLjubljana Joze Pucnik

Feb 7

LJU7:40 pmLjubljana Joze Pucnik

29h 45m

1 stop

DEN5:25 pmDenver Intl

$978

Lufthansa flights from Colorado to Slovenia

Our best Lufthansa deals on Colorado to Slovenia flight tickets

Lufthansa

Apr 10

DEN4:45 pmDenver Intl

35h 55m

2 stops

LJU12:40 pmLjubljana Joze Pucnik

Apr 26

LJU8:20 pmLjubljana Joze Pucnik

25h 55m

1 stop

DEN2:15 pmDenver Intl

$875

Lufthansa

Apr 8

DEN4:00 pmDenver Intl

19h 35m

1 stop

LJU7:35 pmLjubljana Joze Pucnik

Apr 18

LJU10:10 amLjubljana Joze Pucnik

13h 30m

1 stop

DEN3:40 pmDenver Intl

$925

Lufthansa

Mar 1

DEN4:15 pmDenver Intl

21h 05m

2 stops

LJU9:20 pmLjubljana Joze Pucnik

Mar 7

LJU6:40 amLjubljana Joze Pucnik

15h 00m

1 stop

DEN1:40 pmDenver Intl

$936

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Wed 2/10

9:44 am-10:05 am

2 stops16h 21m

Ljubljana Joze Pucnik

Tue 2/16

10:45 am-12:16 pm

2 stops33h 31m

$848

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

Mon 4/26

2:50 pm-7:54 pm

2 stops37h 04m

$862

Quickest round-trip

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Mon 3/1

11:25 am-10:05 am

2 stops14h 40m

Ljubljana Joze Pucnik

Thu 3/4

6:40 am-1:40 pm

1 stop15h 00m

$868

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

Mon 4/26

8:20 pm-2:15 pm

1 stop25h 55m

$875

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Mon 3/1

11:25 am-10:05 am

2 stops14h 40m

Ljubljana Joze Pucnik

Thu 3/4

10:45 am-4:50 pm

2 stops38h 05m

$876

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Sat 4/10

6:40 pm-8:35 pm

1 stop17h 55m

Ljubljana Joze Pucnik

Mon 4/26

3:10 pm-4:30 pm

1 stop33h 20m

$910

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Thu 4/8

4:00 pm-7:35 pm

1 stop19h 35m

Ljubljana Joze Pucnik

Sun 4/18

10:10 am-3:40 pm

1 stop13h 30m

$925

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Mon 11/30

7:30 pm-6:45 pm

1 stop15h 15m

Ljubljana Joze Pucnik

Mon 12/7

9:20 am-5:25 pm

1 stop16h 05m

$938

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Wed 1/27

7:30 pm-8:25 am

1 stop28h 55m

Ljubljana Joze Pucnik

Sun 2/7

7:40 pm-5:25 pm

1 stop29h 45m

$938

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Mon 11/30

6:00 am-10:05 am

2 stops20h 05m

Ljubljana Joze Pucnik

Mon 12/7

10:45 am-11:27 am

3 stops56h 42m

$1,007

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 Colorado 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

Other information

What is the cheapest month to fly to Slovenia?

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

Can stopping save me money on Colorado to Slovenia flights?

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

Cheap Colorado to Slovenia flight deals and tips

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

Best Price Found	$380
Fastest flight time	12h 10m
Direct flights	None

The best one-way flight to Slovenia from Colorado in the past 72 hours is $380. The best round-trip flight deal from Colorado to Slovenia found on momondo in the last 72 hours is $848.

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

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

Search flight deals

Frequently asked questions about flying from Colorado to Slovenia

When did momondo last update prices for flights from Colorado to Slovenia?
Prices for flights from Colorado to Slovenia were last updated today.
How many operators does momondo search for flights from Colorado to Slovenia?
As of November 2026, there are 3 operators available to choose from for flights from Colorado to Slovenia.
How old do you have to be to fly from Colorado to Slovenia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado 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 Colorado to Slovenia

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

Airline	Rating	Free Cancellation	Price
Turkish Airlines	PriceFrom $739	Free Cancellation	Rating 7.4 4,470 reviews	Search Turkish Airlines flights
Lufthansa	PriceFrom $952	Free Cancellation	Rating 6.8 8,299 reviews	Search Lufthansa flights
United Airlines	PriceFrom $987	Free Cancellation	Rating 7.3 10,459 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Colorado 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 Colorado to Slovenia for you.

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

Yes. All flights to Slovenia from Colorado on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Slovenia from Colorado. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Slovenia from Colorado are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Flights to Ljubljanafrom $663

Flights to Mariborfrom $3,530

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Cheap flights from Colorado to Slovenia from $380

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Slovenia departing on 2/3. 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 Colorado to Slovenia

Our best Turkish Airlines deals on Colorado to Slovenia flight tickets

Lufthansa flights from Colorado to Slovenia

Our best Lufthansa deals on Colorado to Slovenia flight tickets

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How to get the cheapest flight ticket from Colorado to Slovenia

What is the cheapest month to fly to Slovenia?

Can stopping save me money on Colorado to Slovenia flights?

What is the cheapest airline that flies from Colorado to Slovenia?

What airlines fly to Slovenia?

How long is the flight from Colorado to Slovenia?

Cheap Colorado to Slovenia flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Colorado to Slovenia

Best airlines flying from Colorado to Slovenia

Compare and see reviews for airlines that fly from Colorado 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

Colorado flight routes

According to popular flight searches on momondo this year

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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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