DL 967 then CZ 2502 at O'Hare
Los Angeles → Chicago → Shanghai
Timetable, Chicago time
13:37DL 967 from Los Angeles at the gate
01:45CZ 2502 to Shanghai leaves the gate
12 h 08 apart on the timetable, overnight
CZ 2502 leaves 12 h 08 after DL 967 arrives on the timetable: more than half a day, so not a connection we count.