VU 311 then KQ 886 at Bangkok
Ho Chi Minh City → Bangkok → Guangzhou
Timetable, Bangkok time
15:25VU 311 from Ho Chi Minh City at the gate
14:40KQ 886 to Guangzhou leaves the gate
23 h 15 apart on the timetable, overnight
KQ 886 leaves 23 h 15 after VU 311 arrives on the timetable: more than half a day, so not a connection we count.