CZ 437 then CA 3174 at O'Hare
Anchorage → Chicago → Guangzhou
Timetable, Chicago time
14:24CZ 437 from Anchorage at the gate
13:40CA 3174 to Guangzhou leaves the gate
23 h 16 apart on the timetable, overnight
CA 3174 leaves 23 h 16 after CZ 437 arrives on the timetable: more than half a day, so not a connection we count.