AA 4921 then AA 1594 at Phoenix
Monterey → Phoenix → Austin
Timetable, Phoenix time
15:50AA 4921 from Monterey at the gate
13:58AA 1594 to Austin leaves the gate
22 h 08 apart on the timetable, overnight
AA 1594 leaves 22 h 08 after AA 4921 arrives on the timetable: more than half a day, so not a connection we count.