AA 3376 then AA 1594 at Phoenix
Denver → Phoenix → Austin
Timetable, Phoenix time
17:54AA 3376 from Denver at the gate
13:58AA 1594 to Austin leaves the gate
20 h 04 apart on the timetable, overnight
AA 1594 leaves 20 h 04 after AA 3376 arrives on the timetable: more than half a day, so not a connection we count.