AA 429 then AA 6445 at Charlotte
Cincinnati → Charlotte → Knoxville
Timetable, Charlotte time
06:35AA 429 from Cincinnati at the gate
15:35AA 6445 to Knoxville leaves the gate
9 h apart on the timetable
The last days
AA 429 and AA 6445 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.