OS 401 then QR 3685 at Barcelona
Vienna → Barcelona → Palermo
Timetable, Barcelona time
09:10OS 401 from Vienna at the gatealso LA 5045
07:30QR 3685 to Palermo leaves the gate
22 h 20 apart on the timetable, overnight
QR 3685 leaves 22 h 20 after OS 401 arrives on the timetable: more than half a day, so not a connection we count.