CZ 656 then CZ 30 at Guangzhou
Moscow Sheremetyevo → Guangzhou → Shanghai Hongqiao
Timetable, Guangzhou time
13:30CZ 656 from Moscow Sheremetyevo at the gate
21:15CZ 30 to Shanghai Hongqiao leaves the gatealso CA 3278, MU 3863, 3U 4594, ZH 5202, MF 5750
7 h 45 apart on the timetable
The last days
CZ 656 and CZ 30 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.