 The flight segment is part of an "around the world flight", stopping at its hub in Shenzen, China and making another stop at Ted Stevens Anchorage International Airport in Alaska before returning to Louisville.Each day, UPS Airlines flies to over 220 countries and territories worldwide, serving 388 US airports with 936 flight segments and 378 international airports with 755 flight segments Using the traditional hub-and-spoke model, UPS Airlines operates through its central facility, Worldport, in Louisville, Kentucky.In addition, the company operates several facilities on a regional level across the United States.