3S 446 then CZ 2502 at O'Hare
Frankfurt am Main → Chicago → Shanghai
Timetable, Chicago time
23:493S 446 from Frankfurt am Main at the gate
13:55CZ 2502 to Shanghai leaves the gate
14 h 06 apart on the timetable, overnight
CZ 2502 leaves 14 h 06 after 3S 446 arrives on the timetable: more than half a day, so not a connection we count.