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

Lufthansa is the most popular carrier 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 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.

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 14h 45m on average. If you fly from Colorado Springs (another popular airport in Colorado) to Ljubljana, then the average flight time is 20h 15m.

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 September 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.

$400 Cheap Flights from Colorado to Slovenia in 2026/27

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Find the cheapest flights from Colorado to Slovenia

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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

11:25 am - 8:55 pmDEN Denver Intl-LJU Ljubljana Joze Pucnik

25h 30m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat

3:15 pm - 4:35 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

32h 20m3 stops Zurich Barcelona-El Prat Frankfurt am Main

$992Multiple Airlines

Wed, Oct 21 - Wed, Oct 28

6:10 pm - 11:05 amDEN Denver Intl-LJU Ljubljana Joze Pucnik

32h 55m2 stops Chicago O'Hare Intl Frankfurt am Main

3:15 pm - 11:44 pmLJU Ljubljana Joze Pucnik-DEN Denver Intl

39h 29m2 stops Zurich Chicago O'Hare Intl

$994Multiple Airlines

Sat, Oct 24 - Sat, Oct 31

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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United Airlines flights from Colorado to Slovenia

Our best United Airlines deals on Colorado to Slovenia flight tickets

United Airlines

Mar 1

DEN11:20 amDenver Intl

14h 45m

2 stops

LJU10:05 amLjubljana Joze Pucnik

Mar 4

LJU10:45 amLjubljana Joze Pucnik

12h 50m

1 stop

DEN3:35 pmDenver Intl

$861

United Airlines

Mar 1

DEN8:17 amDenver Intl

17h 48m

2 stops

LJU10:05 amLjubljana Joze Pucnik

Mar 4

LJU6:40 amLjubljana Joze Pucnik

15h 00m

1 stop

DEN1:40 pmDenver Intl

$862

United Airlines

Mar 1

DEN11:20 amDenver Intl

14h 45m

2 stops

LJU10:05 amLjubljana Joze Pucnik

Mar 4

LJU6:40 amLjubljana Joze Pucnik

21h 46m

2 stops

DEN8:26 pmDenver Intl

$864

Turkish Airlines flights from Colorado to Slovenia

Our best Turkish Airlines deals on Colorado 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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

Wed 10/21

11:25 am-8:55 pm

2 stops25h 30m

Ljubljana Joze Pucnik

Wed 10/28

3:15 pm-4:35 pm

3 stops32h 20m

$992

DenverLjubljana

DEN Denver Intl - LJU Ljubljana Joze Pucnik

DENLJU

Denver Intl

Sat 10/24

6:10 pm-11:05 am

2 stops32h 55m

Ljubljana Joze Pucnik

Sat 10/31

3:15 pm-11:44 pm

2 stops39h 29m

$994

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 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 45% 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	$400
Fastest flight time	14h 45m
Direct flights	None

The best one-way flight to Slovenia from Colorado in the past 72 hours is $400. The best round-trip flight deal from Colorado to Slovenia found on momondo in the last 72 hours is $861.

The fastest flight from Colorado to Slovenia takes 14h 45m

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 September 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 4,458 reviews	Search Turkish Airlines flights
Lufthansa	PriceFrom $947	Free Cancellation	Rating 6.8 8,241 reviews	Search Lufthansa flights
United Airlines	PriceFrom $987	Free Cancellation	Rating 7.4 10,240 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 $678

Flights to Mariborfrom $3,530

Flights to Portorož

Cheap flights from Colorado 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 Colorado 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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United Airlines flights from Colorado to Slovenia

Our best United Airlines deals on Colorado to Slovenia flight tickets

Turkish Airlines flights from Colorado to Slovenia

Our best Turkish Airlines 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

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According to popular flight searches on momondo this year

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Fly your favorite airline to Slovenia

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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