AA 2019 then AA 423 at Charlotte
Newark → Charlotte → Philadelphia
Timetable, Charlotte time
11:55AA 2019 from Newark at the gate
18:03AA 423 to Philadelphia leaves the gate
6 h 08 apart on the timetable
The last days
AA 2019 and AA 423 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.