AA 6490 then AA 1594 at Phoenix
Guadalajara → Phoenix → Austin
Timetable, Phoenix time
16:25AA 6490 from Guadalajara at the gate
13:58AA 1594 to Austin leaves the gate
21 h 33 apart on the timetable, overnight
AA 1594 leaves 21 h 33 after AA 6490 arrives on the timetable: more than half a day, so not a connection we count.