AA 5638 then AA 1261 at Charlotte
Harrisburg → Charlotte → Dallas-Fort Worth
Timetable, Charlotte time
07:45AA 5638 from Harrisburg at the gate
07:26AA 1261 to Dallas-Fort Worth leaves the gate
23 h 41 apart on the timetable, overnight
AA 1261 leaves 23 h 41 after AA 5638 arrives on the timetable: more than half a day, so not a connection we count.