EC 3749 then QR 3691 at Barcelona
Milan → Barcelona → Venezia
Timetable, Barcelona time
21:30EC 3749 from Milan at the gate
12:40QR 3691 to Venezia leaves the gatealso IB 5382, LL 5382, LA 5793
15 h 10 apart on the timetable, overnight
QR 3691 leaves 15 h 10 after EC 3749 arrives on the timetable: more than half a day, so not a connection we count.