AA 5198 then AA 3178 at Charlotte
Nashville → Charlotte → Chicago O'Hare
Timetable, Charlotte time
17:40AA 5198 from Nashville at the gate
16:16AA 3178 to Chicago O'Hare leaves the gate
22 h 36 apart on the timetable, overnight
AA 3178 leaves 22 h 36 after AA 5198 arrives on the timetable: more than half a day, so not a connection we count.