The flight distance from Phoenix Sky Harbor International Airport (PHX) in Phoenix, United States to Xining Caojiabu Airport (XNN) in Xining, China is 11,471 kilometers (7,128 miles / 6,194 nautical miles). The estimated flight time for this route is approximately 14h, flying north northwest at a heading of 332°.

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 China. It is an intercontinental flight between North America and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 23:28 in Phoenix, it's 14:28 in Xining. 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.

There is a significant elevation difference of 1,135 feet between the two airports. Xining Caojiabu Airport sits lower than Phoenix Sky Harbor International Airport.

The return flight from Xining (XNN) to Phoenix (PHX) follows a heading of 29° (north 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 Phoenix Sky Harbor International Airport (PHX) and Xining Caojiabu Airport (XNN) detail pages, or use our flight duration calculator to compare other routes.