The flight distance from Ciampino Airport (CIA) in Roma, Italy to Chek Lap Kok International Airport (HKG) in Hong Kong, Hong Kong is 9,257 kilometers (5,752 miles / 4,998 nautical miles). The estimated flight time for this route is approximately 12h, flying east northeast at a heading of 66°.

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

Time zone information: When it's 04:36 in Roma, it's 11:36 in Hong Kong. With a 7-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 Hong Kong (HKG) to Roma (CIA) follows a heading of 313° (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 Ciampino Airport (CIA) and Chek Lap Kok International Airport (HKG) detail pages, or use our flight duration calculator to compare other routes.