AA 317 then AA 532 at O'Hare
Denver → Chicago → Philadelphia
Timetable, Chicago time
10:04AA 317 from Denver at the gate
19:20AA 532 to Philadelphia leaves the gate
9 h 16 apart on the timetable
The last days
AA 317 and AA 532 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.