AA 455 then AA 6436 at Phoenix
Austin → Phoenix → Tucson
Timetable, Phoenix time
09:16AA 455 from Austin at the gate
21:50AA 6436 to Tucson leaves the gate
12 h 34 apart on the timetable
AA 6436 leaves 12 h 34 after AA 455 arrives on the timetable: more than half a day, so not a connection we count.