AA 3929 then AA 1594 at Phoenix
Redmond → Phoenix → Austin
Timetable, Phoenix time
17:20AA 3929 from Redmond at the gate
13:58AA 1594 to Austin leaves the gate
20 h 38 apart on the timetable, overnight
AA 1594 leaves 20 h 38 after AA 3929 arrives on the timetable: more than half a day, so not a connection we count.