AA 1801 then AA 3217 at Miami
Newark → Miami → Atlanta
Timetable, Miami time
15:27AA 1801 from Newark at the gate
19:20AA 3217 to Atlanta leaves the gate
3 h 53 apart on the timetable
The last days
AA 1801 and AA 3217 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.