AA 1195 then AA 3012 at O'Hare
Buffalo → Chicago → Pittsburgh
Timetable, Chicago time
09:05AA 1195 from Buffalo at the gate
16:59AA 3012 to Pittsburgh leaves the gate
7 h 54 apart on the timetable
The last days
AA 1195 and AA 3012 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.