The flight distance from Netaji Subhash Chandra Bose International Airport (CCU) in Kolkata, India to Udon Thani Airport (UTH) in Udon Thani, Thailand is 1,607 kilometers (999 miles / 868 nautical miles). The estimated flight time for this route is approximately 3h, flying east southeast at a heading of 109°.

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 Thailand. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 17:35 in Kolkata, it's 19:05 in Udon Thani.

The return flight from Udon Thani (UTH) to Kolkata (CCU) follows a heading of 294° (west northwest). 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 Udon Thani Airport (UTH) detail pages, or use our flight duration calculator to compare other routes.