VU 311 then MU 6088 at Bangkok
Ho Chi Minh City → Bangkok → Kunming
Timetable, Bangkok time
15:25VU 311 from Ho Chi Minh City at the gate
15:05MU 6088 to Kunming leaves the gate
23 h 40 apart on the timetable, overnight
MU 6088 leaves 23 h 40 after VU 311 arrives on the timetable: more than half a day, so not a connection we count.