3U 8205 then ZH 4493 at Guangzhou
Kunming → Guangzhou → Beijing Daxing
Timetable, Guangzhou time
19:503U 8205 from Kunming at the gate
14:45ZH 4493 to Beijing Daxing leaves the gatealso CA 8393
18 h 55 apart on the timetable, overnight
ZH 4493 leaves 18 h 55 after 3U 8205 arrives on the timetable: more than half a day, so not a connection we count.