AA 3196 then AA 468 at Philadelphia
Houston → Philadelphia → Chicago O'Hare
Timetable, Philadelphia time
12:09AA 3196 from Houston at the gate
12:47AA 468 to Chicago O'Hare leaves the gate
38 min apart on the timetable
The last days
AA 3196 and AA 468 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.