BT 711 then DP 996 at Istanbul
Riga → Istanbul → Moscow Vnukovo
Timetable, Istanbul time
15:55BT 711 from Riga at the gate
14:40DP 996 to Moscow Vnukovo leaves the gate
22 h 45 apart on the timetable, overnight
DP 996 leaves 22 h 45 after BT 711 arrives on the timetable: more than half a day, so not a connection we count.