AA 3235 then AA 633 at Charlotte
Miami → Charlotte → Cincinnati
Timetable, Charlotte time
13:59AA 3235 from Miami at the gate
18:05AA 633 to Cincinnati leaves the gate
4 h 06 apart on the timetable
The last days
AA 3235 and AA 633 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.