Ljubljana (LJU) → Denver (DEN)
About Ljubljana to Denver Flights
Discover the best flights from Ljubljana to Denver, covering 8,697 km in approximately 11h 22m. Ljubljana (LJU) to Denver (DEN) is one of the major long-haul routes connecting Slovenia and United States. With 7 major airlines operating this route, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Ljubljana to Denver.
12-Month Price History
Flight prices from Ljubljana to Denver vary significantly throughout the year. February typically offers the best deals with average prices around $1404, while July sees the highest prices, averaging $2380. Savvy travelers can save up to 41% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
169 days
For best prices
Booking Tips
For the best prices on Ljubljana to Denver flights, we recommend booking 62 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
Frontier Airlines F9 | $2070 | - | - |
Southwest Airlines WN | $2190 | - | - |
United Airlines UA | $2500 | $10440 | $17400 |
Adria Airways JP | $2630 | $11170 | $15650 |
American Airlines AA | $2670 | $11530 | $16900 |
Delta Air Lines DL | $2750 | $10060 | $14970 |
SkyWest Airlines OO | $3230 | $9920 | $15660 |
Frontier Airlines
F9
Economy
$2070
Business
-
First
-
Southwest Airlines
WN
Economy
$2190
Business
-
First
-
United Airlines
UA
Economy
$2500
Business
$10440
First
$17400
Adria Airways
JP
Economy
$2630
Business
$11170
First
$15650
American Airlines
AA
Economy
$2670
Business
$11530
First
$16900
Delta Air Lines
DL
Economy
$2750
Business
$10060
First
$14970
SkyWest Airlines
OO
Economy
$3230
Business
$9920
First
$15660
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Zagreb → Denver
Zagreb Franjo Tuđman (ZAG) to Denver International (DEN)
Distance: 8,821 km
Average price: $1850
Venice → Denver
Venice Marco Polo (VCE) to Denver International (DEN)
Distance: 8,642 km
Average price: $1815
Venice → Denver
Venice Marco Polo (VCE) to Denver International (DEN)
Distance: 8,642 km
Average price: $1815
Zagreb → Denver
Zagreb (ZAG) to Denver International (DEN)
Distance: 8,821 km
Average price: $1850
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Frequently Asked Questions
How long is the flight from Ljubljana to Denver?
The flight time from Ljubljana (LJU) to Denver (DEN) is approximately 11 hours and 22 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between Ljubljana and Denver?
The aerial distance between Ljubljana and Denver is 8,697 kilometers (5,404 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Ljubljana to Denver?
Several airlines operate flights between Ljubljana and Denver, including United Airlines, Southwest Airlines, Frontier Airlines and 4 more airlines. Most flights on this route include one or more stops.
What is the cheapest month to fly from Ljubljana to Denver?
Based on historical data, February typically offers the lowest airfares for flights from Ljubljana to Denver. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Denver?
For the best prices on Ljubljana to Denver flights, we recommend booking 81 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Ljubljana to Denver?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of Slovenia traveling to United States should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Ljubljana and Denver?
Ljubljana operates on Europe/Ljubljana time zone, while Denver is in the America/Denver time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.