B9 9744 then J1 4806 at Istanbul
Isfahan → Istanbul → Tehran
Timetable, Istanbul time
08:00B9 9744 from Isfahan at the gate
20:30J1 4806 to Tehran leaves the gate
12 h 30 apart on the timetable
J1 4806 leaves 12 h 30 after B9 9744 arrives on the timetable: more than half a day, so not a connection we count.