AA 5143 then AA 1859 at Philadelphia
Hartford → Philadelphia → Charlotte
Timetable, Philadelphia time
07:29AA 5143 from Hartford at the gate
12:05AA 1859 to Charlotte leaves the gate
4 h 36 apart on the timetable
The last days
AA 5143 and AA 1859 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.