AA 3549 then AA 982 at O'Hare
Fort Wayne → Chicago → Pittsburgh
Timetable, Chicago time
11:54AA 3549 from Fort Wayne at the gate
12:31AA 982 to Pittsburgh leaves the gate
37 min apart on the timetable
The last days
AA 3549 and AA 982 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.