AA 3139 then AA 1735 at Charlotte
Philadelphia → Charlotte → Baltimore
Timetable, Charlotte time
07:52AA 3139 from Philadelphia at the gate
14:29AA 1735 to Baltimore leaves the gate
6 h 37 apart on the timetable
The last days
AA 3139 and AA 1735 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.