The flight distance from Tribhuvan International Airport (KTM) in Kathmandu, Nepal to Summit Airport (UMM) in Summit, United States is 8,825 kilometers (5,484 miles / 4,765 nautical miles). The estimated flight time for this route is approximately 11h, flying north northeast at a heading of 22°.

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

Time zone information: When it's 09:52 in Kathmandu, it's 20:07 in Summit. 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 1,981 feet between the two airports. Summit Airport sits lower than Tribhuvan International Airport.

The return flight from Summit (UMM) to Kathmandu (KTM) follows a heading of 313° (northwest). 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 Summit Airport (UMM) detail pages, or use our flight duration calculator to compare other routes.