AA 820 then AA 2335 at Miami
Charlotte → Miami → San Francisco
Timetable, Miami time
15:26AA 820 from Charlotte at the gate
16:15AA 2335 to San Francisco leaves the gate
49 min apart on the timetable
The last days
AA 820 and AA 2335 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.