The flight distance from Tribhuvan International Airport (KTM) in Kathmandu, Nepal to Guillermo Leon Valencia Airport (PPN) in Popayan, Colombia is 16,147 kilometers (10,033 miles / 8,719 nautical miles). The estimated flight time for this route is approximately 20h, flying north northwest at a heading of 327°.

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 Nepal with Colombia. It is an intercontinental flight between Asia and South America. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 19:22 in Kathmandu, it's 08:37 in Popayan. With a 10.75-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 1,297 feet between the two airports. Guillermo Leon Valencia Airport sits higher than Tribhuvan International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Popayan (PPN) to Kathmandu (KTM) follows a heading of 29° (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 Tribhuvan International Airport (KTM) and Guillermo Leon Valencia Airport (PPN) detail pages, or use our flight duration calculator to compare other routes.