CZ 6785 then CZ 4227 at Guangzhou
Haikou → Guangzhou → Beijing Daxing
Timetable, Guangzhou time
10:25CZ 6785 from Haikou at the gate
21:10CZ 4227 to Beijing Daxing leaves the gate
10 h 45 apart on the timetable
The last days
CZ 6785 and CZ 4227 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.