The flight distance from Netaji Subhash Chandra Bose International Airport (CCU) in Kolkata, India to Heihe Airport (HEK) in Heihe, China is 4,546 kilometers (2,825 miles / 2,455 nautical miles). The estimated flight time for this route is approximately 6h, flying northeast at a heading of 38°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

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

Time zone information: When it's 03:16 in Kolkata, it's 05:46 in Heihe.

There is a significant elevation difference of 8,514 feet between the two airports. Heihe Airport sits higher than Netaji Subhash Chandra Bose International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Heihe (HEK) to Kolkata (CCU) follows a heading of 242° (west 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 Netaji Subhash Chandra Bose International Airport (CCU) and Heihe Airport (HEK) detail pages, or use our flight duration calculator to compare other routes.