The flight distance from Great Keppel Is Airport (GKL) in Great Keppel Is Airport, Australia to Tribhuvan International Airport (KTM) in Kathmandu, Nepal is 9,026 kilometers (5,608 miles / 4,873 nautical miles). The estimated flight time for this route is approximately 12h, flying northwest at a heading of 305°.

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

Time zone information: When it's 03:45 in Great Keppel Is Airport, it's 23:30 in Kathmandu. 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 4,369 feet between the two airports. Tribhuvan International Airport sits higher than Great Keppel Is Airport.

The return flight from Kathmandu (KTM) to Great Keppel Is Airport (GKL) follows a heading of 122° (east southeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Great Keppel Is Airport (GKL) and Tribhuvan International Airport (KTM) detail pages, or use our flight duration calculator to compare other routes.