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Find cheap flights from Denver to Slovenia from $939

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Slovenia departing on 10/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Tue 7/2
Tue 7/9

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Best Slovenia Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Ljubljana
Ljubljana1 stop$939

Good to know

Low season

February

High season

September

Cheapest flight

$939
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Denver to Ljubljana

FAQs - booking Slovenia flights

  • How does KAYAK find such low prices on flights from Denver to Slovenia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Slovenia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Slovenia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Slovenia from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Slovenia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Slovenia with an airline and back to Denver with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Slovenia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Slovenia from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Slovenia

  • Morning departure is around 20% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 3 airlines serving from Denver to Slovenia

 
Need help choosing which airline to fly with from Denver to Slovenia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
SWISSOverall score based on 1940 reviews
7.8Boarding
7.4Food
7.2Entertainment
8.4Crew
7.5Comfort
Airline reviews

Leave on time so i dont miss my transit flight. Also make it so coffee/tea is free amd not a paid service. The staff treat us like dogs having us wait everywhere. The buses had no ac and we had to wait inside packed like sardines. Horrible experience. Never flying again hopefully and not using kayak.

2.0 MediocreAlexander, May 2024TIA - ZRH
Read more about SWISS reviews

Leave on time so i dont miss my transit flight. Also make it so coffee/tea is free amd not a paid service. The staff treat us like dogs having us wait everywhere. The buses had no ac and we had to wait inside packed like sardines. Horrible experience. Never flying again hopefully and not using kayak.

I arrived 59 minutes before the flight in Tampa due to Massive traffic jam and the flight was closed and I was told that I’d simply have to “book a new ticket on line myself and the gate agents couldn’t help me”. Even though the flight was delayed over 30 minutes, (leaving one hour and 29 minutes before departure, they refused to assist in any way explaining that it’s automatic and there can be no exceptions. Horrible experience due to poor management at gate. I fly this option 2-3 times a year and have a good experience with the cabin crew etc. But, Tampa agents are not trained or allowed customer service. I once was a gate agent for USAir, I know times have changed, but forcing me to purchase a new ticket and complete indifference and inconvenience. No thanks

Crew members were good. Seats were packed and too tight .

Carry on luggage size for economy passengers significantly smaller than other airlines, so nearly all ecomy passengers had their bags taken and checked.

Had a short layover in Zurich, luggage marked expedite and short layover but still didn’t get luggage when arrived in Split until 3 days later even though husband got his.

On time flight, I requested wheelchair in Zurich , when I arrived they were no where to be found, I had one hour between flights I had to walk with great difficulty.

We had issues with upgrading our seats. The flight itself was fine.

Horrible experience. They "GAME" with seats they decided to play where you can`t select or get seat during check-in without paying and then forcing you to stay long line at the Customer Service at the gate to get a boarding ticket with seat assigned is pathetic. Will never fly with United again!

SO disappointing. I spent so much money on this ticket, for them to cancel and not be able to rebook me in time. They were very unhelpful, and condescending throughout the whole Swiss airport. Will not be flying again.

So terrible. They would not rebook me for a flight until 2 days. I had to spend so much money to get my own flight. They were rude and not helpful.

The check in was horrible. I stood in line for 1 hour to check in with an Air France ticket. Then I was told I had to go to Delta counter onstead to check in instead. It made no sense.

Medíocre. The food wasn't good (although not bad, bad) and the staff wasn't kind. I asked for n extra blanket, the steward never came back, serving us roughly.

Excellent apart from transport to actual plane 10 minutes from the actual gate , walking out in the tarmac in the rain and having to climb stairs to enter while holding luggage.

They wanted to close counter although they did not provide the wheelchair requested which ended by going alone to transit security and lost long time and they did not want to wait .

Boarding was smooth and on time. The seat was comfortable and the entertainment worked. Staff were gracious.

Good aorcraft 777 but Worst food ever Breakfast was a bû’with matonnaise… Staff was nice but invisible most of the flight

Business class in the second leg - CDG-EVN was a disaster.

worst experience ever i choose my seat in advance and also have my seat selected in my boarding and the they told me that my seat has been changed without notify me

No birding was given for next trip on same carrier, food was very moderate.

We transited through Chad and what was supposed to be a 1hr 20 minutes transit time lasted over 4hrs. We didn't get regular updates until we complained. After a 10hr flight from Paris no form of refreshment given and finally arrived Abuja over 6hrs later and none of my bags came

Poor, we had 1 hour to grab our checked luggage, go through customs, recheck bags and run across terminals to make our United flight. Poorly planned connections.

Check in in Albuquerque was awful. The people were great but they were over loaded. The procedures were terrible. We got through fine but it took 90+ minutes.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Boston Logan is a crummy airport - signage is terrible or lacking in areas. Boarding seemed to be a free for all and with all the different airlines speaking, you couldn't tell who was supposed to be where and when. Plain and simple, airlines should board from the back of the plane to the front. Also someone was sitting in my seat. By the time that was figured out, I had to place my overhead behind me which made de-planing more difficult. Logan is not Lufthansa's fault so that is not on them, Boarding is on them! Still, overall it was a Good Experience flying with Lufthansa. This is not my first flight with them...

Overall, the flight was comfortable without any serious issues. Transit through Frankfurt airport was a little confusing, but not too difficult if you follow the signs

There was a screaming child behind our seats. This prevented us from getting any sleep during the night.

There was a screaming child just behind our seats. This prevented us from getting any sleep during the night!!

Staff disappeared after dinner service until breakfast, no help with beds, no help running to our gate to catch connection cause flight was late, our luggage didn’t make it, took over 24 hours to get luggage to hotel, no compensation!!

Everything was good except food. I believe there is room for improvement

Book cheap flights from Denver to Slovenia

Recent round-trip flight deals

10/17Thu
1 stopLufthansa
12h 20mDEN-LJU
10/26Sat
1 stopLufthansa
12h 30mLJU-DEN
$939
10/17Thu
2 stopsDelta
25h 05mDEN-LJU
10/26Sat
1 stopDelta
32h 50mLJU-DEN
$951
9/13Fri
1 stopTurkish Airlines
28h 20mDEN-LJU
9/22Sun
1 stopTurkish Airlines
16h 50mLJU-DEN
$964
9/16Mon
1 stopLufthansa
12h 20mDEN-LJU
10/1Tue
1 stopLufthansa
26h 40mLJU-DEN
$981
9/17Tue
2 stops
18h 10mDEN-LJU
9/26Thu
2 stops
20h 06mLJU-DEN
$982
8/1Thu
1 stopTurkish Airlines
28h 20mDEN-LJU
8/31Sat
1 stopTurkish Airlines
29h 35mLJU-DEN
$986
9/18Wed
2 stopsKLM
18h 45mDEN-LJU
9/27Fri
2 stopsKLM
20h 32mLJU-DEN
$1,002
9/13Fri
2 stops
17h 23mDEN-LJU
9/22Sun
2 stops
24h 11mLJU-DEN
$1,022
6/24Mon
1 stopSWISS
32h 00mDEN-LJU
7/3Wed
1 stopSWISS
13h 45mLJU-DEN
$1,286
6/27Thu
2 stopsSWISS
14h 40mDEN-LJU
7/4Thu
1 stopSWISS
33h 40mLJU-DEN
$1,725

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Recent one-way flight deals

6/22Sat
1 stopBritish Airways
18h 05mDEN-LJU
$980
6/23Sun
2 stops
28h 41mDEN-LJU
$1,086
6/22Sat
2 stopsBritish Airways
21h 53mDEN-LJU
$1,110
6/23Sun
1 stopSWISS
16h 35mDEN-LJU
$1,145
6/22Sat
1 stopLufthansa
12h 20mDEN-LJU
$1,246
6/23Sun
3 stops
17h 53mDEN-LJU
$2,332

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Last minute flights from Denver to Slovenia

Last minute flight, train and bus deals

6/5Wed
multi-stopSWISS
32h 00mDEN-LJU
6/19Wed
multi-stopSWISS
13h 45mLJU-DEN
$1,965
6/5Wed
multi-stopLufthansa
12h 20mDEN-LJU
6/19Wed
multi-stopLufthansa
16h 54mLJU-DEN
$1,970
6/5Wed
multi-stopLufthansa
21h 35mDEN-LJU
6/19Wed
multi-stopLufthansa
16h 54mLJU-DEN
$2,017

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Denver - Slovenia Flights

Departure:

Denver (DEN)United States

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