UA 576 then Y8 7456 at O'Hare
Minneapolis → Chicago → Shanghai
Timetable, Chicago time
13:15UA 576 from Minneapolis at the gate
01:35Y8 7456 to Shanghai leaves the gate
12 h 20 apart on the timetable, overnight
Y8 7456 leaves 12 h 20 after UA 576 arrives on the timetable: more than half a day, so not a connection we count.