AA 3974 then AA 1594 at Phoenix
Wichita → Phoenix → San Diego
Timetable, Phoenix time
06:40AA 3974 from Wichita at the gate
21:40AA 1594 to San Diego leaves the gate
15 h apart on the timetable
AA 1594 leaves 15 h after AA 3974 arrives on the timetable: more than half a day, so not a connection we count.