The flight distance from Princess Juliana International Airport (SXM) in Saint Martin, SX to Sydney Kingsford Smith International Airport (SYD) in Sydney, Australia is 16,184 kilometers (10,056 miles / 8,739 nautical miles). The estimated flight time for this route is approximately 20h, flying southwest at a heading of 236°.

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

Time zone information: When it's 01:11 in Saint Martin, it's 16:11 in Sydney. With a 15-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 Martin (SXM) follows a heading of 109° (east southeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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