AA 5490 then AA 5604 at Charlotte
Dayton → Charlotte → Springfield
Timetable, Charlotte time
14:32AA 5490 from Dayton at the gate
11:35AA 5604 to Springfield leaves the gate
21 h 03 apart on the timetable, overnight
AA 5604 leaves 21 h 03 after AA 5490 arrives on the timetable: more than half a day, so not a connection we count.