AV 262 then CZ 2508 at O'Hare
Bogota → Chicago → Guangzhou
Timetable, Chicago time
20:30AV 262 from Bogota at the gate
19:50CZ 2508 to Guangzhou leaves the gate
23 h 20 apart on the timetable, overnight
CZ 2508 leaves 23 h 20 after AV 262 arrives on the timetable: more than half a day, so not a connection we count.