AA 376 then AA 6113 at Charlotte
Pittsburgh → Charlotte → Knoxville
Timetable, Charlotte time
06:35AA 376 from Pittsburgh at the gate
12:25AA 6113 to Knoxville leaves the gate
5 h 50 apart on the timetable
The last days
AA 376 and AA 6113 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.