AA 3949 then AA 1594 at Phoenix
Palm Springs → Phoenix → Austin
Timetable, Phoenix time
18:23AA 3949 from Palm Springs at the gate
13:58AA 1594 to Austin leaves the gate
19 h 35 apart on the timetable, overnight
AA 1594 leaves 19 h 35 after AA 3949 arrives on the timetable: more than half a day, so not a connection we count.