The flight distance from RAF Ascension Island (ASI) in Ascension Island, SH to Netaji Subhash Chandra Bose International Airport (CCU) in Kolkata, India is 11,660 kilometers (7,245 miles / 6,296 nautical miles). The estimated flight time for this route is approximately 15h, flying east northeast at a heading of 69°.

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

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

Time zone information: When it's 13:45 in Ascension Island, it's 19:15 in Kolkata. The 5.5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Kolkata (CCU) to Ascension Island (ASI) follows a heading of 267° (west). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the RAF Ascension Island (ASI) and Netaji Subhash Chandra Bose International Airport (CCU) detail pages, or use our flight duration calculator to compare other routes.