AA 864 then AA 5174 at Charlotte
Chicago O'Hare → Charlotte → Dayton
Timetable, Charlotte time
19:52AA 864 from Chicago O'Hare at the gate
17:42AA 5174 to Dayton leaves the gate
21 h 50 apart on the timetable, overnight
AA 5174 leaves 21 h 50 after AA 864 arrives on the timetable: more than half a day, so not a connection we count.