AV 6210 then FR 3946 at Fiumicino
Madrid → Rome → Palermo
Timetable, Rome time
08:15AV 6210 from Madrid at the gate
05:45FR 3946 to Palermo leaves the gate
21 h 30 apart on the timetable, overnight
FR 3946 leaves 21 h 30 after AV 6210 arrives on the timetable: more than half a day, so not a connection we count.