AA 1775 then WN 1232 at Charlotte
Richmond → Charlotte → St Louis
Timetable, Charlotte time
10:35AA 1775 from Richmond at the gate
11:30WN 1232 to St Louis leaves the gate
55 min apart on the timetable
The last days
AA 1775 and WN 1232 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.