BT 877 then QR 3600 at Barcelona
Tallinn → Barcelona → Mahón
Timetable, Barcelona time
10:30BT 877 from Tallinn at the gate
07:45QR 3600 to Mahón leaves the gatealso VY 3602, IB 5269
21 h 15 apart on the timetable, overnight
QR 3600 leaves 21 h 15 after BT 877 arrives on the timetable: more than half a day, so not a connection we count.