The flight distance from Tribhuvan International Airport (KTM) in Kathmandu, Nepal to Simbai Airport (SIM) in Simbai, Papua New Guinea is 7,324 kilometers (4,551 miles / 3,954 nautical miles). The estimated flight time for this route is approximately 10h, flying east southeast at a heading of 110°.

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 Papua New Guinea. It is an intercontinental flight between Asia and Oceania. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 03:21 in Kathmandu, it's 07:36 in Simbai. The 4.25-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 1,414 feet between the two airports. Simbai Airport sits higher than Tribhuvan International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Simbai (SIM) to Kathmandu (KTM) follows a heading of 304° (west 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 Simbai Airport (SIM) detail pages, or use our flight duration calculator to compare other routes.