IB 415 then QR 3600 at Barcelona
Madrid → Barcelona → Mahón
Timetable, Barcelona time
16:15IB 415 from Madrid at the gatealso LA 1522, LL 3015, VY 5057, AV 6016, QR 6889, BA 7134, AA 8630
07:45QR 3600 to Mahón leaves the gatealso VY 3602, IB 5269
15 h 30 apart on the timetable, overnight
QR 3600 leaves 15 h 30 after IB 415 arrives on the timetable: more than half a day, so not a connection we count.