AA 1728 then AA 1594 at Phoenix
Milwaukee → Phoenix → Austin
Timetable, Phoenix time
16:29AA 1728 from Milwaukee at the gate
13:58AA 1594 to Austin leaves the gate
21 h 29 apart on the timetable, overnight
AA 1594 leaves 21 h 29 after AA 1728 arrives on the timetable: more than half a day, so not a connection we count.