The flight distance from Chek Lap Kok International Airport (HKG) in Hong Kong, Hong Kong to Marechal Cunha Machado International Airport (SLZ) in Sao Luis, Brazil is 16,795 kilometers (10,436 miles / 9,069 nautical miles). The estimated flight time for this route is approximately 21h, flying northwest at a heading of 310°.

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 Brazil. 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 14:42 in Hong Kong, it's 03:42 in Sao Luis. 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.

The return flight from Sao Luis (SLZ) to Hong Kong (HKG) follows a heading of 45° (northeast). 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 Marechal Cunha Machado International Airport (SLZ) detail pages, or use our flight duration calculator to compare other routes.