EC 3749 then FI 6405 at Barcelona
Milan → Barcelona → Lisbon
Timetable, Barcelona time
21:30EC 3749 from Milan at the gate
14:35FI 6405 to Lisbon leaves the gatealso S4 8947
17 h 05 apart on the timetable, overnight
FI 6405 leaves 17 h 05 after EC 3749 arrives on the timetable: more than half a day, so not a connection we count.