The flight distance from Netaji Subhash Chandra Bose International Airport (CCU) in Kolkata, India to Tribhuvan International Airport (KTM) in Kathmandu, Nepal is 642 kilometers (399 miles / 347 nautical miles). The estimated flight time for this route is approximately 2h, flying north northwest at a heading of 332°.

This is a short-haul route typically served by narrow-body aircraft such as the Boeing 737 or Airbus A320 family. In-flight service is usually limited to drinks and light snacks.

This is an international route connecting India with Nepal. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 13:57 in Kolkata, it's 14:12 in Kathmandu.

There is a significant elevation difference of 4,374 feet between the two airports. Tribhuvan International Airport sits higher than Netaji Subhash Chandra Bose International Airport.

The return flight from Kathmandu (KTM) to Kolkata (CCU) follows a heading of 150° (south 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 Netaji Subhash Chandra Bose International Airport (CCU) and Tribhuvan International Airport (KTM) detail pages, or use our flight duration calculator to compare other routes.