AA 3018 then AA 1594 at Phoenix
Miami → Phoenix → Austin
Timetable, Phoenix time
16:49AA 3018 from Miami at the gate
13:58AA 1594 to Austin leaves the gate
21 h 09 apart on the timetable, overnight
AA 1594 leaves 21 h 09 after AA 3018 arrives on the timetable: more than half a day, so not a connection we count.