AA 5538 then AA 5553 at Charlotte
Gulfport → Charlotte → Allentown
Timetable, Charlotte time
09:19AA 5538 from Gulfport at the gate
22:30AA 5553 to Allentown leaves the gate
13 h 11 apart on the timetable
AA 5553 leaves 13 h 11 after AA 5538 arrives on the timetable: more than half a day, so not a connection we count.