MF 8339 then 3U 8206 at Guangzhou
Beijing Daxing → Guangzhou → Kunming
Timetable, Guangzhou time
21:25MF 8339 from Beijing Daxing at the gate
20:553U 8206 to Kunming leaves the gate
23 h 30 apart on the timetable, overnight
3U 8206 leaves 23 h 30 after MF 8339 arrives on the timetable: more than half a day, so not a connection we count.