The flight distance from Gray Army Air Field (Joint Base Lewis-Mcchord) Airport (GRF) in Fort Lewis/Tacoma, United States to Perth International Airport (PER) in Perth, Australia is 14,850 kilometers (9,227 miles / 8,018 nautical miles). The estimated flight time for this route is approximately 18h, flying west at a heading of 267°.

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 United States 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 04:18 in Fort Lewis/Tacoma, it's 20:18 in Perth. With a 16-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 Perth (PER) to Fort Lewis/Tacoma (GRF) follows a heading of 53° (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 Gray Army Air Field (Joint Base Lewis-Mcchord) Airport (GRF) and Perth International Airport (PER) detail pages, or use our flight duration calculator to compare other routes.