UA 6047 then AA 3063 at O'Hare
Pittsburgh → Chicago → Los Angeles
Timetable, Chicago time
20:31UA 6047 from Pittsburgh at the gate
18:55AA 3063 to Los Angeles leaves the gate
22 h 24 apart on the timetable, overnight
AA 3063 leaves 22 h 24 after UA 6047 arrives on the timetable: more than half a day, so not a connection we count.