The flight distance from Crested Butte Airpark (CSE) in Crested Butte, United States to Tribhuvan International Airport (KTM) in Kathmandu, Nepal is 12,506 kilometers (7,771 miles / 6,753 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 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 13:46 in Crested Butte, it's 02:31 in Kathmandu. With a 12.75-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 4,590 feet between the two airports. Tribhuvan International Airport sits lower than Crested Butte Airpark. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Kathmandu (KTM) to Crested Butte (CSE) follows a heading of 10° (north). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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