AA 2014 then AA 3096 at Charlotte
Richmond → Charlotte → St Louis
Timetable, Charlotte time
10:32AA 2014 from Richmond at the gate
11:08AA 3096 to St Louis leaves the gate
36 min apart on the timetable
The last days
AA 2014 and AA 3096 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.