The flight distance from Coolawanyah Airport (COY) in Coolawanyah Airport, Australia to St Louis Lambert International Airport (STL) in St Louis, United States is 16,739 kilometers (10,401 miles / 9,038 nautical miles). The estimated flight time for this route is approximately 21h, flying northeast at a heading of 48°.

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 13:39 in Coolawanyah Airport, it's 23:39 in St Louis. With a 14-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 St Louis (STL) to Coolawanyah Airport (COY) follows a heading of 297° (west 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 Coolawanyah Airport (COY) and St Louis Lambert International Airport (STL) detail pages, or use our flight duration calculator to compare other routes.