The flight distance from Bandaranaike International Apt Colombo Airport (CMB) in Colombo, Sri Lanka to Tribhuvan International Airport (KTM) in Kathmandu, Nepal is 2,354 kilometers (1,462 miles / 1,271 nautical miles). The estimated flight time for this route is approximately 4h, flying north northeast at a heading of 14°.

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

Time zone information: When it's 16:14 in Colombo, it's 16:29 in Kathmandu.

There is a significant elevation difference of 4,360 feet between the two airports. Tribhuvan International Airport sits higher than Bandaranaike International Apt Colombo Airport.

The return flight from Kathmandu (KTM) to Colombo (CMB) follows a heading of 195° (south southwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Bandaranaike International Apt Colombo Airport (CMB) and Tribhuvan International Airport (KTM) detail pages, or use our flight duration calculator to compare other routes.