AA 1685 then AA 1594 at Phoenix
Madison → Phoenix → Austin
Timetable, Phoenix time
17:39AA 1685 from Madison at the gate
13:58AA 1594 to Austin leaves the gate
20 h 19 apart on the timetable, overnight
AA 1594 leaves 20 h 19 after AA 1685 arrives on the timetable: more than half a day, so not a connection we count.