The flight distance from Chek Lap Kok International Airport (HKG) in Hong Kong, Hong Kong to Los Alamos Airport (LAM) in Los Alamos, United States is 12,287 kilometers (7,634 miles / 6,634 nautical miles). The estimated flight time for this route is approximately 15h, flying northeast at a heading of 34°.

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

Time zone information: When it's 19:48 in Hong Kong, it's 04:48 in Los Alamos. 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 7,143 feet between the two airports. Los Alamos Airport sits higher than Chek Lap Kok International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Los Alamos (LAM) to Hong Kong (HKG) follows a heading of 320° (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 Chek Lap Kok International Airport (HKG) and Los Alamos Airport (LAM) detail pages, or use our flight duration calculator to compare other routes.