3U 8205 then CZ 3103 at Guangzhou
Kunming → Guangzhou → Beijing Daxing
Timetable, Guangzhou time
19:503U 8205 from Kunming at the gate
12:00CZ 3103 to Beijing Daxing leaves the gate
16 h 10 apart on the timetable, overnight
CZ 3103 leaves 16 h 10 after 3U 8205 arrives on the timetable: more than half a day, so not a connection we count.