C6 301 then TK 1451 at Istanbul
Tashkent → Istanbul → Porto
Timetable, Istanbul time
14:30C6 301 from Tashkent at the gate
13:25TK 1451 to Porto leaves the gate
22 h 55 apart on the timetable, overnight
TK 1451 leaves 22 h 55 after C6 301 arrives on the timetable: more than half a day, so not a connection we count.