AA 1271 then AA 1945 at Charlotte
Cincinnati → Charlotte → Mexico City
Timetable, Charlotte time
06:35AA 1271 from Cincinnati at the gate
18:44AA 1945 to Mexico City leaves the gate
12 h 09 apart on the timetable
AA 1945 leaves 12 h 09 after AA 1271 arrives on the timetable: more than half a day, so not a connection we count.