AA 595 then AA 4100 at O'Hare
Philadelphia → Chicago → Allentown
Timetable, Chicago time
11:04AA 595 from Philadelphia at the gate
15:00AA 4100 to Allentown leaves the gate
3 h 56 apart on the timetable
The last days
AA 595 and AA 4100 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.