The flight distance from Grants-Milan Municipal Airport (GNT) in Grants, United States to Chek Lap Kok International Airport (HKG) in Hong Kong, Hong Kong is 12,251 kilometers (7,613 miles / 6,615 nautical miles). The estimated flight time for this route is approximately 15h, flying northwest at a heading of 319°.

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

Time zone information: When it's 22:47 in Grants, it's 13:47 in Hong Kong. With a 15-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 6,509 feet between the two airports. Chek Lap Kok International Airport sits lower than Grants-Milan Municipal Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Hong Kong (HKG) to Grants (GNT) follows a heading of 36° (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 Grants-Milan Municipal Airport (GNT) and Chek Lap Kok International Airport (HKG) detail pages, or use our flight duration calculator to compare other routes.