IB 647 then FR 3946 at Fiumicino
Madrid → Rome → Palermo
Timetable, Rome time
11:10IB 647 from Madrid at the gate
05:45FR 3946 to Palermo leaves the gate
18 h 35 apart on the timetable, overnight
FR 3946 leaves 18 h 35 after IB 647 arrives on the timetable: more than half a day, so not a connection we count.