The flight distance from Netaji Subhash Chandra Bose International Airport (CCU) in Kolkata, India to Ust-Kut Airport (UKX) in Ust-Kut, Russia is 4,055 kilometers (2,520 miles / 2,189 nautical miles). The estimated flight time for this route is approximately 6h, flying north northeast at a heading of 16°.

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 Russia. It is an intercontinental flight between Asia and Europe. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 09:31 in Kolkata, it's 12:01 in Ust-Kut.

There is a significant elevation difference of 2,172 feet between the two airports. Ust-Kut Airport sits higher than Netaji Subhash Chandra Bose International Airport.

The return flight from Ust-Kut (UKX) to Kolkata (CCU) follows a heading of 207° (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 Netaji Subhash Chandra Bose International Airport (CCU) and Ust-Kut Airport (UKX) detail pages, or use our flight duration calculator to compare other routes.