AZ 1722 then FR 3946 at Fiumicino
Catania → Rome → Palermo
Timetable, Rome time
07:25AZ 1722 from Catania at the gate
05:45FR 3946 to Palermo leaves the gate
22 h 20 apart on the timetable, overnight
FR 3946 leaves 22 h 20 after AZ 1722 arrives on the timetable: more than half a day, so not a connection we count.