UB 19 then FD 8206 at Bangkok
Yangon → Bangkok → Chiang Mai
Timetable, Bangkok time
16:20UB 19 from Yangon at the gate
12:35FD 8206 to Chiang Mai leaves the gate
20 h 15 apart on the timetable, overnight
FD 8206 leaves 20 h 15 after UB 19 arrives on the timetable: more than half a day, so not a connection we count.