The flight distance from Denver International Airport (DEN) in Denver, United States to Portoroz Airport (POW) in Portoroz, Slovenia is 8,713 kilometers (5,414 miles / 4,705 nautical miles). The estimated flight time for this route is approximately 11h, flying northeast at a heading of 39°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

This is an international route connecting United States with Slovenia. It is an intercontinental flight between North America and Europe. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 01:35 in Denver, it's 09:35 in Portoroz. With a 8-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 5,427 feet between the two airports. Portoroz Airport sits lower than Denver International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Portoroz (POW) to Denver (DEN) follows a heading of 316° (northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Denver International Airport (DEN) and Portoroz Airport (POW) detail pages, or use our flight duration calculator to compare other routes.