UA 6047 then AA 1933 at O'Hare
Pittsburgh → Chicago → Miami
Timetable, Chicago time
20:31UA 6047 from Pittsburgh at the gate
17:54AA 1933 to Miami leaves the gate
21 h 23 apart on the timetable, overnight
AA 1933 leaves 21 h 23 after UA 6047 arrives on the timetable: more than half a day, so not a connection we count.