FR 1815 then W4 6159 at Fiumicino
Porto → Rome → Sarajevo
Timetable, Rome time
20:25FR 1815 from Porto at the gate
15:05W4 6159 to Sarajevo leaves the gate
18 h 40 apart on the timetable, overnight
W4 6159 leaves 18 h 40 after FR 1815 arrives on the timetable: more than half a day, so not a connection we count.