DL 8953 then AA 2596 at Philadelphia
Pittsburgh → Philadelphia → Miami
Timetable, Philadelphia time
23:47DL 8953 from Pittsburgh at the gate
06:00AA 2596 to Miami leaves the gate
6 h 13 apart on the timetable, overnight
The last days
DL 8953 and AA 2596 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.