The flight distance from Tribhuvan International Airport (KTM) in Kathmandu, Nepal to Cabo 1° Juan Roman Airport (WPA) in Puerto Aysen, Chile is 17,253 kilometers (10,721 miles / 9,316 nautical miles). The estimated flight time for this route is approximately 21h, flying southwest at a heading of 219°.

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 Chile. 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 07:24 in Kathmandu, it's 21:39 in Puerto Aysen. With a 9.75-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 4,360 feet between the two airports. Cabo 1° Juan Roman Airport sits lower than Tribhuvan International Airport.

The return flight from Puerto Aysen (WPA) to Kathmandu (KTM) follows a heading of 128° (southeast). 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 Cabo 1° Juan Roman Airport (WPA) detail pages, or use our flight duration calculator to compare other routes.