The flight distance from Tribhuvan International Airport (KTM) in Kathmandu, Nepal to Spartanburg Downtown Memorial/Simpson Field (SPA) in Spartanburg, United States is 12,926 kilometers (8,032 miles / 6,979 nautical miles). The estimated flight time for this route is approximately 16h, flying north northwest at a heading of 348°.

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 United States. It is an intercontinental flight between Asia and North America. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 00:02 in Kathmandu, it's 13:17 in Spartanburg. 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 3,588 feet between the two airports. Spartanburg Downtown Memorial/Simpson Field sits lower than Tribhuvan International Airport.

The return flight from Spartanburg (SPA) to Kathmandu (KTM) follows a heading of 13° (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 Spartanburg Downtown Memorial/Simpson Field (SPA) detail pages, or use our flight duration calculator to compare other routes.