A2 600 then U2 4501 at Charles de Gaulle
Bucharest → Paris → Nice
Timetable, Paris time
12:20A2 600 from Bucharest at the gate
06:55U2 4501 to Nice leaves the gate
18 h 35 apart on the timetable, overnight
U2 4501 leaves 18 h 35 after A2 600 arrives on the timetable: more than half a day, so not a connection we count.