A4 5071 then SU 657 at Istanbul
Sochi → Istanbul → Krasnodar
Timetable, Istanbul time
13:30A4 5071 from Sochi at the gate
13:25SU 657 to Krasnodar leaves the gate
23 h 55 apart on the timetable, overnight
SU 657 leaves 23 h 55 after A4 5071 arrives on the timetable: more than half a day, so not a connection we count.