The flight distance from Netaji Subhash Chandra Bose International Airport (CCU) in Kolkata, India to Sion Airport (SIR) in Sion, Switzerland is 7,547 kilometers (4,690 miles / 4,075 nautical miles). The estimated flight time for this route is approximately 10h, flying northwest at a heading of 312°.

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 Switzerland. 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 21:57 in Kolkata, it's 17:27 in Sion. The 4.5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 1,569 feet between the two airports. Sion Airport sits higher than Netaji Subhash Chandra Bose International Airport.

The return flight from Sion (SIR) to Kolkata (CCU) follows a heading of 80° (east). 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 Sion Airport (SIR) detail pages, or use our flight duration calculator to compare other routes.