The flight distance from Sherbro International Airport (BTE) in Bonthe, Sierra Leone to Tribhuvan International Airport (KTM) in Kathmandu, Nepal is 10,386 kilometers (6,454 miles / 5,608 nautical miles). The estimated flight time for this route is approximately 13h, flying east northeast at a heading of 61°.

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

Time zone information: When it's 23:57 in Bonthe, it's 05:42 in Kathmandu. The 5.75-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 4,376 feet between the two airports. Tribhuvan International Airport sits higher than Sherbro International Airport.

The return flight from Kathmandu (KTM) to Bonthe (BTE) follows a heading of 280° (west). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Sherbro International Airport (BTE) and Tribhuvan International Airport (KTM) detail pages, or use our flight duration calculator to compare other routes.