The flight distance from Seosan Air Base (HMY) in Seosan, South Korea to Tribhuvan International Airport (KTM) in Kathmandu, Nepal is 3,965 kilometers (2,464 miles / 2,141 nautical miles). The estimated flight time for this route is approximately 6h, flying west at a heading of 267°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is an international route connecting South Korea with Nepal. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 01:48 in Seosan, it's 22:33 in Kathmandu. The 3.25-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 4,351 feet between the two airports. Tribhuvan International Airport sits higher than Seosan Air Base.

The return flight from Kathmandu (KTM) to Seosan (HMY) follows a heading of 65° (east 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 Seosan Air Base (HMY) and Tribhuvan International Airport (KTM) detail pages, or use our flight duration calculator to compare other routes.