The flight distance from Big Mountain Airport (BMX) in Big Mountain, United States to Tribhuvan International Airport (KTM) in Kathmandu, Nepal is 8,864 kilometers (5,508 miles / 4,786 nautical miles). The estimated flight time for this route is approximately 11h, flying northwest at a heading of 308°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

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

Time zone information: When it's 06:43 in Big Mountain, it's 20:28 in Kathmandu. With a 13.75-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 3,727 feet between the two airports. Tribhuvan International Airport sits higher than Big Mountain Airport.

The return flight from Kathmandu (KTM) to Big Mountain (BMX) 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 Big Mountain Airport (BMX) and Tribhuvan International Airport (KTM) detail pages, or use our flight duration calculator to compare other routes.