VU 311 then VZ 212 at Bangkok
Ho Chi Minh City → Bangkok → Khon Kaen
Timetable, Bangkok time
15:25VU 311 from Ho Chi Minh City at the gate
15:10VZ 212 to Khon Kaen leaves the gate
23 h 45 apart on the timetable, overnight
VZ 212 leaves 23 h 45 after VU 311 arrives on the timetable: more than half a day, so not a connection we count.