AA 3011 then AA 2184 at Philadelphia
Los Angeles → Philadelphia → Miami
Timetable, Philadelphia time
23:50AA 3011 from Los Angeles at the gate
08:20AA 2184 to Miami leaves the gate
8 h 30 apart on the timetable, overnight
The last days
AA 3011 and AA 2184 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.