TK 209 then TK 252 at Istanbul
Singapore → Istanbul → Hanoi
Timetable, Istanbul time
18:30TK 209 from Singapore at the gate
18:05TK 252 to Hanoi leaves the gate
23 h 35 apart on the timetable, overnight
TK 252 leaves 23 h 35 after TK 209 arrives on the timetable: more than half a day, so not a connection we count.