AA 3507 then AA 1594 at Phoenix
Yuma → Phoenix → Austin
Timetable, Phoenix time
18:17AA 3507 from Yuma at the gate
13:58AA 1594 to Austin leaves the gate
19 h 41 apart on the timetable, overnight
AA 1594 leaves 19 h 41 after AA 3507 arrives on the timetable: more than half a day, so not a connection we count.