QR 3748 then FR 3049 at Barcelona
Milan → Barcelona → Krakow
Timetable, Barcelona time
00:10QR 3748 from Milan at the gatealso IB 5367, LL 5367, LA 5833, VY 6055
21:40FR 3049 to Krakow leaves the gate
21 h 30 apart on the timetable
FR 3049 leaves 21 h 30 after QR 3748 arrives on the timetable: more than half a day, so not a connection we count.