FR 4903 then AZ 610 at Fiumicino
Palermo → Rome → New York JFK
Timetable, Rome time
23:30FR 4903 from Palermo at the gate
14:55AZ 610 to New York JFK leaves the gate
15 h 25 apart on the timetable, overnight
AZ 610 leaves 15 h 25 after FR 4903 arrives on the timetable: more than half a day, so not a connection we count.