The flight distance from Guernsey Airport (GCI) in Saint Peter Port, GG to Sydney Kingsford Smith International Airport (SYD) in Sydney, Australia is 17,264 kilometers (10,727 miles / 9,322 nautical miles). The estimated flight time for this route is approximately 21h, flying east northeast at a heading of 61°.

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 GG with Australia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 06:42 in Saint Peter Port, it's 17:42 in Sydney. With a 11-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 Sydney (SYD) to Saint Peter Port (GCI) follows a heading of 317° (northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Guernsey Airport (GCI) and Sydney Kingsford Smith International Airport (SYD) detail pages, or use our flight duration calculator to compare other routes.