VU 311 then NH 878 at Bangkok
Ho Chi Minh City → Bangkok → Tokyo Haneda
Timetable, Bangkok time
15:25VU 311 from Ho Chi Minh City at the gate
14:20NH 878 to Tokyo Haneda leaves the gate
22 h 55 apart on the timetable, overnight
NH 878 leaves 22 h 55 after VU 311 arrives on the timetable: more than half a day, so not a connection we count.