EC 3749 then TK 1468 at Barcelona
Milan → Barcelona → Istanbul
Timetable, Barcelona time
08:40EC 3749 from Milan at the gate
14:35TK 1468 to Istanbul leaves the gate
5 h 55 apart on the timetable
The last days
EC 3749 and TK 1468 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.