CZ 6791 then AQ 1101 at Guangzhou
Haikou → Guangzhou → Chongqing
Timetable, Guangzhou time
18:05CZ 6791 from Haikou at the gate
14:10AQ 1101 to Chongqing leaves the gate
20 h 05 apart on the timetable, overnight
AQ 1101 leaves 20 h 05 after CZ 6791 arrives on the timetable: more than half a day, so not a connection we count.