$642 Cheap Flights from Ljubljana (LJU) to Denver (DEN)

View $642 flight on Thu, Jun 11, 2026Opens in a new window

Popular airlines from Joze Pucnik Airport (LJU) to Denver Intl. Airport (DEN)

Cheap Flights from Ljubljana to Denver (LJU-DEN)

Prices were available within the past 7 days and start at $642 for one-way flights and $855 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Sat, Dec 6 - Tue, Dec 9
LJU
Ljubljana
DEN
Denver
$855 Roundtrip, found 1 day ago
$855
Roundtrip
found 1 day ago
Select Turkish Airlines flight, departing Sat, Dec 6 from Ljubljana to Denver, returning Tue, Dec 9, priced at $855 found 1 day ago
Turkish Airlines
Wed, Nov 5 - Tue, Nov 18
LJU
Ljubljana
DEN
Denver
$858 Roundtrip, found 10 hours ago
$858
Roundtrip
found 10 hours ago
Select Turkish Airlines flight, departing Wed, Nov 5 from Ljubljana to Denver, returning Tue, Nov 18, priced at $858 found 10 hours ago
Delta
Fri, Dec 5 - Wed, Dec 10
LJU
Ljubljana
DEN
Denver
$934 Roundtrip, found 1 day ago
$934
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Dec 5 from Ljubljana to Denver, returning Wed, Dec 10, priced at $934 found 1 day ago
Lufthansa
Fri, Nov 21 - Mon, Dec 8
LJU
Ljubljana
DEN
Denver
$957 Roundtrip, found 4 days ago
$957
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Fri, Nov 21 from Ljubljana to Denver, returning Mon, Dec 8, priced at $957 found 4 days ago
Lufthansa
Wed, Nov 5 - Tue, Nov 18
LJU
Ljubljana
DEN
Denver
$957 Roundtrip, found 10 hours ago
$957
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Wed, Nov 5 from Ljubljana to Denver, returning Tue, Nov 18, priced at $957 found 10 hours ago
Lufthansa
Wed, Nov 5 - Tue, Nov 18
LJU
Ljubljana
DEN
Denver
$959 Roundtrip, found 10 hours ago
$959
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Wed, Nov 5 from Ljubljana to Denver, returning Tue, Nov 18, priced at $959 found 10 hours ago
Lufthansa
Wed, Nov 5 - Tue, Nov 18
LJU
Ljubljana
DEN
Denver
$959 Roundtrip, found 10 hours ago
$959
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Wed, Nov 5 from Ljubljana to Denver, returning Tue, Nov 18, priced at $959 found 10 hours ago
Lufthansa
Wed, Nov 5 - Tue, Nov 18
LJU
Ljubljana
DEN
Denver
$962 Roundtrip, found 10 hours ago
$962
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Wed, Nov 5 from Ljubljana to Denver, returning Tue, Nov 18, priced at $962 found 10 hours ago
KLM
Wed, Nov 5 - Tue, Nov 18
LJU
Ljubljana
DEN
Denver
$972 Roundtrip, found 10 hours ago
$972
Roundtrip
found 10 hours ago
Select KLM flight, departing Wed, Nov 5 from Ljubljana to Denver, returning Tue, Nov 18, priced at $972 found 10 hours ago
Swiss International Air Lines
Wed, Nov 5 - Tue, Nov 18
LJU
Ljubljana
DEN
Denver
$975 Roundtrip, found 10 hours ago
$975
Roundtrip
found 10 hours ago
Select Swiss International Air Lines flight, departing Wed, Nov 5 from Ljubljana to Denver, returning Tue, Nov 18, priced at $975 found 10 hours ago

Frequently asked questions

How much does a flight from Joze Pucnik Airport (LJU) to Denver Intl. Airport (DEN) cost?
Secure a cheap one-way flight from $642 or cheap return flight from $855 from Joze Pucnik Airport (LJU) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Joze Pucnik Airport (LJU) to Denver Intl. Airport (DEN)?
Flying in December is a good way to save, as it's the cheapest month for flights between LJU and DEN. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Joze Pucnik Airport (LJU) to Denver Intl. Airport (DEN)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest LJU to DEN flight.
How many flights per day from Joze Pucnik Airport (LJU) to Denver Intl. Airport (DEN)?
You'll need to hop on a flight with a layover if you're traveling from Joze Pucnik Airport (LJU) to Denver Intl. Airport (DEN). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from LJU to DEN?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on various factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Joze Pucnik Airport (LJU) to Denver Intl. Airport (DEN)?
To arrive at Denver Intl. Airport (DEN) without delays, choose a flight that leaves Joze Pucnik Airport (LJU) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Joze Pucnik Airport (LJU) to Denver Intl. Airport (DEN) last-minute?
Waiting until just before your trip to book your flight from LJU to DEN often results in higher prices. While you may come across some last-minute discounts, they aren't always guaranteed. Be flexible with your itinerary to boost your chances of snagging a bargain.
Is it cheaper to book a LJU to DEN flight and hotel package?
Compared with arranging hotels and flights separately, booking a LJU to DEN flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place takes the hassle out of planning your trip. Simply pick your flights and select from our wide range of stays, then personalize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Joze Pucnik Airport (LJU) to Denver Intl. Airport (DEN)?
If you reserved your LJU to DEN flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Origin airport
Joze Pucnik
Destination airport
Denver Intl.
Airlines serving
Air France, British Airways, Brussels Airlines, Delta, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines
Roundtrip price
$854
Distance
5403 mi

Book with confidence

Ljubljana to Denver Flights

The cheapest times to fly from Ljubljana to Denver

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ljubljana to Denver are during the month of December. You can find some of the cheapest flights from Ljubljana to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ljubljana to Denver

Sunday is one of the best days to book for cheap flights from Ljubljana to Denver: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ljubljana to Denver

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ljubljana to Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $642 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ljubljana to Denver flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ljubljana to Denver airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Ljubljana to Denver Flights

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*Available to One Key members.