H7 421 then TK 1933 at Istanbul
Chişinău → Istanbul → London Heathrow
Timetable, Istanbul time
22:30H7 421 from Chişinău at the gate
13:40TK 1933 to London Heathrow leaves the gate
15 h 10 apart on the timetable, overnight
TK 1933 leaves 15 h 10 after H7 421 arrives on the timetable: more than half a day, so not a connection we count.