AA 1271 then DL 3158 at Charlotte
Cincinnati → Charlotte → Atlanta (ATL)
Timetable, Charlotte time
07:50AA 1271 from Cincinnati at the gate
20:03DL 3158 to Atlanta (ATL) leaves the gate
12 h 13 apart on the timetable
DL 3158 leaves 12 h 13 after AA 1271 arrives on the timetable: more than half a day, so not a connection we count.