The flight distance from Adelaide International Airport (ADL) in Adelaide, Australia to Roundup Airport (RPX) in Roundup, United States is 14,393 kilometers (8,944 miles / 7,772 nautical miles). The estimated flight time for this route is approximately 18h, flying northeast at a heading of 55°.

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 01:04 in Adelaide, it's 07:34 in Roundup. With a 17.5-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 3,470 feet between the two airports. Roundup Airport sits higher than Adelaide International Airport.

The return flight from Roundup (RPX) to Adelaide (ADL) follows a heading of 258° (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 Roundup Airport (RPX) detail pages, or use our flight duration calculator to compare other routes.