CA 1015 then CZ 2508 at O'Hare
Anchorage → Chicago → Guangzhou
Timetable, Chicago time
21:41CA 1015 from Anchorage at the gate
19:50CZ 2508 to Guangzhou leaves the gate
22 h 09 apart on the timetable, overnight
CZ 2508 leaves 22 h 09 after CA 1015 arrives on the timetable: more than half a day, so not a connection we count.