UA 6047 then AA 3909 at O'Hare
Pittsburgh → Chicago → Green Bay
Timetable, Chicago time
20:31UA 6047 from Pittsburgh at the gate
18:46AA 3909 to Green Bay leaves the gate
22 h 15 apart on the timetable, overnight
AA 3909 leaves 22 h 15 after UA 6047 arrives on the timetable: more than half a day, so not a connection we count.