TR 671 then SQ 7298 at Changi
Chiang Rai → Singapore → Sydney
Timetable, Singapore time
19:40TR 671 from Chiang Rai at the gate
08:30SQ 7298 to Sydney leaves the gate
12 h 50 apart on the timetable, overnight
SQ 7298 leaves 12 h 50 after TR 671 arrives on the timetable: more than half a day, so not a connection we count.