UA 5195 then AA 3239 at O'Hare
Macon → Chicago → Pittsburgh
Timetable, Chicago time
14:30UA 5195 from Macon at the gate
12:29AA 3239 to Pittsburgh leaves the gate
21 h 59 apart on the timetable, overnight
AA 3239 leaves 21 h 59 after UA 5195 arrives on the timetable: more than half a day, so not a connection we count.