CZ 3224 then S7 6248 at Guangzhou
Yan'an → Guangzhou → Vladivostok
Timetable, Guangzhou time
13:30CZ 3224 from Yan'an at the gate
03:45S7 6248 to Vladivostok leaves the gate
14 h 15 apart on the timetable, overnight
S7 6248 leaves 14 h 15 after CZ 3224 arrives on the timetable: more than half a day, so not a connection we count.