K6 722 then TG 44 at Bangkok
Phnom Penh → Bangkok → Khon Kaen
Timetable, Bangkok time
14:25K6 722 from Phnom Penh at the gate
14:10TG 44 to Khon Kaen leaves the gate
23 h 45 apart on the timetable, overnight
TG 44 leaves 23 h 45 after K6 722 arrives on the timetable: more than half a day, so not a connection we count.