The flight distance from Chek Lap Kok International Airport (HKG) in Hong Kong, Hong Kong to Rio Mayo Airport (ROY) in Rio Mayo, Argentina is 17,387 kilometers (10,804 miles / 9,388 nautical miles). The estimated flight time for this route is approximately 21h, flying south at a heading of 173°.

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

Time zone information: When it's 10:16 in Hong Kong, it's 23:16 in Rio Mayo. With a 11-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 1,756 feet between the two airports. Rio Mayo Airport sits higher than Chek Lap Kok International Airport.

The return flight from Rio Mayo (ROY) to Hong Kong (HKG) follows a heading of 190° (south). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Chek Lap Kok International Airport (HKG) and Rio Mayo Airport (ROY) detail pages, or use our flight duration calculator to compare other routes.