The flight distance from Klagenfurt Airport (KLU) in Klagenfurt am Worthersee, Austria to Harry Reid International Airport (LAS) in Las Vegas, United States is 9,527 kilometers (5,920 miles / 5,144 nautical miles). The estimated flight time for this route is approximately 12h, flying northwest at a heading of 321°.

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

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

Time zone information: When it's 21:01 in Klagenfurt am Worthersee, it's 12:01 in Las Vegas. With a 9-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from Las Vegas (LAS) to Klagenfurt am Worthersee (KLU) follows a heading of 32° (north northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Klagenfurt Airport (KLU) and Harry Reid International Airport (LAS) detail pages, or use our flight duration calculator to compare other routes.