AA 2735 then AA 6003 at Charlotte
Nashville → Charlotte → Huntsville
Timetable, Charlotte time
10:55AA 2735 from Nashville at the gate
14:40AA 6003 to Huntsville leaves the gate
3 h 45 apart on the timetable
The last days
AA 2735 and AA 6003 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.