J1 4845 then IV 7973 at Istanbul
Mashhad → Istanbul → Tehran
Timetable, Istanbul time
12:30J1 4845 from Mashhad at the gate
19:45IV 7973 to Tehran leaves the gate
7 h 15 apart on the timetable
Istanbul’s board shows about 81% of departures at their timetable time, so delays of a few minutes don’t show here.
The last days
J1 4845 and IV 7973 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.