AF 1391 then U2 1630 at Charles de Gaulle
Istanbul → Paris → Nice
Timetable, Paris time
09:00AF 1391 from Istanbul at the gate
21:20U2 1630 to Nice leaves the gate
12 h 20 apart on the timetable
U2 1630 leaves 12 h 20 after AF 1391 arrives on the timetable: more than half a day, so not a connection we count.