AA 1784 then AA 5553 at Charlotte
Chicago O'Hare → Charlotte → Allentown
Timetable, Charlotte time
09:50AA 1784 from Chicago O'Hare at the gate
22:30AA 5553 to Allentown leaves the gate
12 h 40 apart on the timetable
AA 5553 leaves 12 h 40 after AA 1784 arrives on the timetable: more than half a day, so not a connection we count.