The flight distance from Mackall Army Air Field (HFF) in Camp Mackall, United States to Singapore Changi International Airport (SIN) in Singapore, Singapore is 15,952 kilometers (9,912 miles / 8,614 nautical miles). The estimated flight time for this route is approximately 20h, flying north at a heading of 354°.

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 Singapore. 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 07:30 in Camp Mackall, it's 20:30 in Singapore. With a 13-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 Singapore (SIN) to Camp Mackall (HFF) follows a heading of 5° (north). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Mackall Army Air Field (HFF) and Singapore Changi International Airport (SIN) detail pages, or use our flight duration calculator to compare other routes.