The flight distance from Netaji Subhash Chandra Bose International Airport (CCU) in Kolkata, India to St Helens Airport (HLS) in St Helens Airport, Australia is 9,409 kilometers (5,846 miles / 5,080 nautical miles). The estimated flight time for this route is approximately 12h, flying southeast at a heading of 139°.

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 India with Australia. It is an intercontinental flight between Asia and Oceania. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 18:38 in Kolkata, it's 00:08 in St Helens Airport. The 5.5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from St Helens Airport (HLS) to Kolkata (CCU) follows a heading of 307° (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 St Helens Airport (HLS) detail pages, or use our flight duration calculator to compare other routes.