The flight distance from Adelaide International Airport (ADL) in Adelaide, Australia to Allen Army Air Field (BIG) in Delta Junction Ft Greely, United States is 12,814 kilometers (7,962 miles / 6,919 nautical miles). The estimated flight time for this route is approximately 16h, flying north northeast at a heading of 28°.

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

Time zone information: When it's 18:47 in Adelaide, it's 23:17 in Delta Junction Ft Greely. With a 19.5-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 1,265 feet between the two airports. Allen Army Air Field sits higher than Adelaide International Airport.

The return flight from Delta Junction Ft Greely (BIG) to Adelaide (ADL) follows a heading of 241° (west southwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Adelaide International Airport (ADL) and Allen Army Air Field (BIG) detail pages, or use our flight duration calculator to compare other routes.