The flight distance from Sydney Kingsford Smith International Airport (SYD) in Sydney, Australia to Unst Airport (UNT) in Shetland Islands, United Kingdom is 16,423 kilometers (10,205 miles / 8,868 nautical miles). The estimated flight time for this route is approximately 20h, flying north northwest at a heading of 335°.

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 03:48 in Sydney, it's 18:48 in Shetland Islands. With a 9-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 Shetland Islands (UNT) to Sydney (SYD) follows a heading of 47° (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 Sydney Kingsford Smith International Airport (SYD) and Unst Airport (UNT) detail pages, or use our flight duration calculator to compare other routes.