The flight distance from Netaji Subhash Chandra Bose International Airport (CCU) in Kolkata, India to Mehrabad International Airport (THR) in Tehran, Iran is 3,858 kilometers (2,397 miles / 2,083 nautical miles). The estimated flight time for this route is approximately 6h, flying west northwest at a heading of 301°.

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

Time zone information: When it's 03:30 in Kolkata, it's 01:30 in Tehran.

There is a significant elevation difference of 3,946 feet between the two airports. Mehrabad International Airport sits higher than Netaji Subhash Chandra Bose International Airport.

The return flight from Tehran (THR) to Kolkata (CCU) follows a heading of 102° (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 Netaji Subhash Chandra Bose International Airport (CCU) and Mehrabad International Airport (THR) detail pages, or use our flight duration calculator to compare other routes.