The flight distance from Tribhuvan International Airport (KTM) in Kathmandu, Nepal to Ulei Airport (ULB) in Ambryn Island, Vanuatu is 10,175 kilometers (6,322 miles / 5,494 nautical miles). The estimated flight time for this route is approximately 13h, flying east southeast at a heading of 108°.

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 Nepal with Vanuatu. 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 21:24 in Kathmandu, it's 02:39 in Ambryn Island. The 5.25-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 4,390 feet between the two airports. Ulei Airport sits lower than Tribhuvan International Airport.

The return flight from Ambryn Island (ULB) to Kathmandu (KTM) follows a heading of 298° (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 Ulei Airport (ULB) detail pages, or use our flight duration calculator to compare other routes.