The flight distance from Coolawanyah Airport (COY) in Coolawanyah Airport, Australia to Washington Dulles International Airport (IAD) in Washington, United States is 17,618 kilometers (10,948 miles / 9,513 nautical miles). The estimated flight time for this route is approximately 22h, flying northeast at a heading of 34°.

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 13:24 in Coolawanyah Airport, it's 01:24 in Washington. With a 12-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 Washington (IAD) to Coolawanyah Airport (COY) follows a heading of 318° (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 Washington Dulles International Airport (IAD) detail pages, or use our flight duration calculator to compare other routes.