AA 2343 then QR 76 at O'Hare
San Diego → Chicago → Milan
Timetable, Chicago time
16:29AA 2343 from San Diego at the gate
14:45QR 76 to Milan leaves the gate
22 h 16 apart on the timetable, overnight
QR 76 leaves 22 h 16 after AA 2343 arrives on the timetable: more than half a day, so not a connection we count.