The flight distance from Phoenix Sky Harbor International Airport (PHX) in Phoenix, United States to Stara Zagora Airport (SZR) in Stara Zagora, Bulgaria is 10,546 kilometers (6,553 miles / 5,694 nautical miles). The estimated flight time for this route is approximately 13h, flying north northeast at a heading of 30°.

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

Time zone information: When it's 14:45 in Phoenix, it's 00:45 in Stara Zagora. With a 10-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 Stara Zagora (SZR) to Phoenix (PHX) follows a heading of 326° (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 Phoenix Sky Harbor International Airport (PHX) and Stara Zagora Airport (SZR) detail pages, or use our flight duration calculator to compare other routes.