AA 1202 then AA 4799 at O'Hare
Miami → Chicago → Harrisburg
Timetable, Chicago time
15:43AA 1202 from Miami at the gate
16:30AA 4799 to Harrisburg leaves the gate
47 min apart on the timetable
The last days
AA 1202 and AA 4799 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.