CZ 660 then ZH 3258 at Guangzhou
San Francisco → Guangzhou → Chengdu Shuangliu
Timetable, Guangzhou time
10:25CZ 660 from San Francisco at the gate
12:15ZH 3258 to Chengdu Shuangliu leaves the gatealso GJ 5002, CA 5582, SC 6048, KY 6602, EU 8002
1 h 50 apart on the timetable
The last days
CZ 660 and ZH 3258 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.