UA 6047 then AA 608 at O'Hare
Pittsburgh → Chicago → New York LaGuardia
Timetable, Chicago time
19:00UA 6047 from Pittsburgh at the gate
17:58AA 608 to New York LaGuardia leaves the gate
22 h 58 apart on the timetable, overnight
AA 608 leaves 22 h 58 after UA 6047 arrives on the timetable: more than half a day, so not a connection we count.