AA 622 then AA 1594 at Phoenix
Dallas-Fort Worth → Phoenix → Austin
Timetable, Phoenix time
17:48AA 622 from Dallas-Fort Worth at the gate
13:58AA 1594 to Austin leaves the gate
20 h 10 apart on the timetable, overnight
AA 1594 leaves 20 h 10 after AA 622 arrives on the timetable: more than half a day, so not a connection we count.