The flight distance from Adelaide International Airport (ADL) in Adelaide, Australia to Kirkwall Airport (KOI) in Orkney Islands, United Kingdom is 16,147 kilometers (10,033 miles / 8,719 nautical miles). The estimated flight time for this route is approximately 20h, flying northwest at a heading of 326°.

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 Kingdom. It is an intercontinental flight between Oceania and Europe. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 09:59 in Adelaide, it's 23:29 in Orkney Islands. With a 10.5-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 Orkney Islands (KOI) to Adelaide (ADL) follows a heading of 64° (east 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 Adelaide International Airport (ADL) and Kirkwall Airport (KOI) detail pages, or use our flight duration calculator to compare other routes.