AA 644 then AA 3291 at Phoenix
Tampa → Phoenix → San Diego
Timetable, Phoenix time
20:50AA 644 from Tampa at the gate
18:05AA 3291 to San Diego leaves the gate
21 h 15 apart on the timetable, overnight
AA 3291 leaves 21 h 15 after AA 644 arrives on the timetable: more than half a day, so not a connection we count.