AA 5638 then WN 544 at Charlotte
Harrisburg → Charlotte → Baltimore
Timetable, Charlotte time
07:45AA 5638 from Harrisburg at the gate
20:05WN 544 to Baltimore leaves the gate
12 h 20 apart on the timetable
WN 544 leaves 12 h 20 after AA 5638 arrives on the timetable: more than half a day, so not a connection we count.