LL 5280 then FR 4545 at Barcelona
Mahón → Barcelona → Porto
Timetable, Barcelona time
18:40LL 5280 from Mahón at the gate
17:15FR 4545 to Porto leaves the gate
22 h 35 apart on the timetable, overnight
FR 4545 leaves 22 h 35 after LL 5280 arrives on the timetable: more than half a day, so not a connection we count.