FR 4438 then AZ 1751 at Fiumicino
Riga → Rome → Catania
Timetable, Rome time
19:05FR 4438 from Riga at the gate
14:20AZ 1751 to Catania leaves the gate
19 h 15 apart on the timetable, overnight
AZ 1751 leaves 19 h 15 after FR 4438 arrives on the timetable: more than half a day, so not a connection we count.