W4 2031 then FR 3181 at Fiumicino
Krakow → Rome → Barcelona
Timetable, Rome time
10:30W4 2031 from Krakow at the gate
10:25FR 3181 to Barcelona leaves the gate
23 h 55 apart on the timetable, overnight
FR 3181 leaves 23 h 55 after W4 2031 arrives on the timetable: more than half a day, so not a connection we count.