QR 47 then AA 3012 at O'Hare
Liege → Chicago → Pittsburgh
Timetable, Chicago time
18:56QR 47 from Liege at the gate
17:00AA 3012 to Pittsburgh leaves the gate
22 h 04 apart on the timetable, overnight
AA 3012 leaves 22 h 04 after QR 47 arrives on the timetable: more than half a day, so not a connection we count.