TK 2661 then F3 574 at Istanbul
Sivas → Istanbul → Riyadh
Timetable, Istanbul time
22:05TK 2661 from Sivas at the gate
20:55F3 574 to Riyadh leaves the gate
22 h 50 apart on the timetable, overnight
F3 574 leaves 22 h 50 after TK 2661 arrives on the timetable: more than half a day, so not a connection we count.