KL 462 then TK 1954 at Schiphol
Bucharest → Amsterdam → Istanbul
Timetable, Amsterdam time
06:25KL 462 from Bucharest at the gate
18:30TK 1954 to Istanbul leaves the gate
12 h 05 apart on the timetable
TK 1954 leaves 12 h 05 after KL 462 arrives on the timetable: more than half a day, so not a connection we count.