The flight distance from Netaji Subhash Chandra Bose International Airport (CCU) in Kolkata, India to Kaufana Airport (EUA) in Eua Island, Tonga is 11,545 kilometers (7,174 miles / 6,234 nautical miles). The estimated flight time for this route is approximately 15h, flying east southeast at a heading of 108°.

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 Tonga. 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 15:28 in Kolkata, it's 22:58 in Eua Island. With a 7.5-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from Eua Island (EUA) to Kolkata (CCU) follows a heading of 289° (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 Kaufana Airport (EUA) detail pages, or use our flight duration calculator to compare other routes.