IB 409 then QR 3600 at Barcelona
Madrid → Barcelona → Mahón
Timetable, Barcelona time
11:45IB 409 from Madrid at the gatealso IB 409S, LA 1624, CX 1827, LL 3009, VY 5116, AV 6078, BA 7129, QR 7246, AA 8727
07:45QR 3600 to Mahón leaves the gatealso VY 3602, IB 5269
20 h apart on the timetable, overnight
QR 3600 leaves 20 h after IB 409 arrives on the timetable: more than half a day, so not a connection we count.