AA 1165 then AA 1692 at Miami
Charlotte → Miami → Newark
Timetable, Miami time
08:00AA 1165 from Charlotte at the gate
08:31AA 1692 to Newark leaves the gate
31 min apart on the timetable
The last days
AA 1165 and AA 1692 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.