AA 6078 then AA 1908 at Charlotte
Harrisburg → Charlotte → San Juan
Timetable, Charlotte time
10:10AA 6078 from Harrisburg at the gate
08:20AA 1908 to San Juan leaves the gate
22 h 10 apart on the timetable, overnight
AA 1908 leaves 22 h 10 after AA 6078 arrives on the timetable: more than half a day, so not a connection we count.