TK 861 then TK 1451 at Istanbul
Muscat → Istanbul → Porto
Timetable, Istanbul time
13:30TK 861 from Muscat at the gate
13:25TK 1451 to Porto leaves the gate
23 h 55 apart on the timetable, overnight
TK 1451 leaves 23 h 55 after TK 861 arrives on the timetable: more than half a day, so not a connection we count.