The flight distance from Tribhuvan International Airport (KTM) in Kathmandu, Nepal to Santa Teresita Airport (SST) in Santa Teresita, Argentina is 16,337 kilometers (10,151 miles / 8,821 nautical miles). The estimated flight time for this route is approximately 20h, flying west southwest at a heading of 245°.

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 Argentina. 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 20:45 in Kathmandu, it's 12:00 in Santa Teresita. With a 8.75-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 4,381 feet between the two airports. Santa Teresita Airport sits lower than Tribhuvan International Airport.

The return flight from Santa Teresita (SST) to Kathmandu (KTM) follows a heading of 94° (east). 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 Santa Teresita Airport (SST) detail pages, or use our flight duration calculator to compare other routes.