The flight distance from Attopeu Airport (AOU) in Attopeu, Laos to Tribhuvan International Airport (KTM) in Kathmandu, Nepal is 2,639 kilometers (1,640 miles / 1,425 nautical miles). The estimated flight time for this route is approximately 4h, flying northwest at a heading of 306°.

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 Laos with Nepal. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 15:38 in Attopeu, it's 14:23 in Kathmandu.

There is a significant elevation difference of 4,046 feet between the two airports. Tribhuvan International Airport sits higher than Attopeu Airport.

The return flight from Kathmandu (KTM) to Attopeu (AOU) follows a heading of 118° (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 Attopeu Airport (AOU) and Tribhuvan International Airport (KTM) detail pages, or use our flight duration calculator to compare other routes.