AA 1613 then AA 1594 at Phoenix
Las Vegas → Phoenix → Austin
Timetable, Phoenix time
14:49AA 1613 from Las Vegas at the gate
13:58AA 1594 to Austin leaves the gate
23 h 09 apart on the timetable, overnight
AA 1594 leaves 23 h 09 after AA 1613 arrives on the timetable: more than half a day, so not a connection we count.