ET 574 then CA 8414 at O'Hare
Rome → Chicago → Shanghai
Timetable, Chicago time
07:40ET 574 from Rome at the gate
05:40CA 8414 to Shanghai leaves the gate
22 h apart on the timetable, overnight
CA 8414 leaves 22 h after ET 574 arrives on the timetable: more than half a day, so not a connection we count.