AA 5198 then AA 5599 at Charlotte
Nashville → Charlotte → Springfield
Timetable, Charlotte time
17:40AA 5198 from Nashville at the gate
15:36AA 5599 to Springfield leaves the gate
21 h 56 apart on the timetable, overnight
AA 5599 leaves 21 h 56 after AA 5198 arrives on the timetable: more than half a day, so not a connection we count.