ZH 8904 then HU 7151 at Guangzhou
Zhengzhou → Guangzhou → Chengdu Tianfu
Timetable, Guangzhou time
12:20ZH 8904 from Zhengzhou at the gate
09:55HU 7151 to Chengdu Tianfu leaves the gate
21 h 35 apart on the timetable, overnight
HU 7151 leaves 21 h 35 after ZH 8904 arrives on the timetable: more than half a day, so not a connection we count.