AZ 1784 then FR 4437 at Fiumicino
Palermo → Rome → Riga
Timetable, Rome time
13:50AZ 1784 from Palermo at the gate
06:00FR 4437 to Riga leaves the gate
16 h 10 apart on the timetable, overnight
FR 4437 leaves 16 h 10 after AZ 1784 arrives on the timetable: more than half a day, so not a connection we count.