LL 5270 then QR 3545 at Barcelona
Mahón → Barcelona → Santiago de Compostela
Timetable, Barcelona time
10:15LL 5270 from Mahón at the gate
09:10QR 3545 to Santiago de Compostela leaves the gate
22 h 55 apart on the timetable, overnight
QR 3545 leaves 22 h 55 after LL 5270 arrives on the timetable: more than half a day, so not a connection we count.