IB 5803 then FI 6405 at Barcelona
Catania → Barcelona → Lisbon
Timetable, Barcelona time
20:55IB 5803 from Catania at the gatealso LL 5803, VY 6119
14:35FI 6405 to Lisbon leaves the gatealso S4 8947
17 h 40 apart on the timetable, overnight
FI 6405 leaves 17 h 40 after IB 5803 arrives on the timetable: more than half a day, so not a connection we count.