AA 2735 then AA 5021 at Charlotte
Nashville → Charlotte → St Louis
Timetable, Charlotte time
10:55AA 2735 from Nashville at the gate
14:45AA 5021 to St Louis leaves the gate
3 h 50 apart on the timetable
The last days
AA 2735 and AA 5021 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.