AA 4919 then AA 1594 at Phoenix
Boise → Phoenix → Austin
Timetable, Phoenix time
18:49AA 4919 from Boise at the gate
13:58AA 1594 to Austin leaves the gate
19 h 09 apart on the timetable, overnight
AA 1594 leaves 19 h 09 after AA 4919 arrives on the timetable: more than half a day, so not a connection we count.