The flight distance from Tribhuvan International Airport (KTM) in Kathmandu, Nepal to Simon Bolivar International Airport (SMR) in Santa Marta, Colombia is 15,171 kilometers (9,427 miles / 8,192 nautical miles). The estimated flight time for this route is approximately 19h, flying north northwest at a heading of 330°.

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 00:27 in Kathmandu, it's 13:42 in Santa Marta. 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 4,368 feet between the two airports. Simon Bolivar International Airport sits lower than Tribhuvan International Airport.

The return flight from Santa Marta (SMR) to Kathmandu (KTM) follows a heading of 27° (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 Simon Bolivar International Airport (SMR) detail pages, or use our flight duration calculator to compare other routes.