AA 3987 then AA 5245 at Charlotte
Springfield → Charlotte → Dayton
Timetable, Charlotte time
15:38AA 3987 from Springfield at the gate
15:25AA 5245 to Dayton leaves the gate
23 h 47 apart on the timetable, overnight
AA 5245 leaves 23 h 47 after AA 3987 arrives on the timetable: more than half a day, so not a connection we count.