AA 551 then AA 5086 at Philadelphia
Miami → Philadelphia → Cincinnati
Timetable, Philadelphia time
11:56AA 551 from Miami at the gate
16:26AA 5086 to Cincinnati leaves the gate
4 h 30 apart on the timetable
The last days
AA 551 and AA 5086 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.