LL 5268 then FR 4545 at Barcelona
Mahón → Barcelona → Porto
Timetable, Barcelona time
08:55LL 5268 from Mahón at the gate
06:45FR 4545 to Porto leaves the gate
21 h 50 apart on the timetable, overnight
FR 4545 leaves 21 h 50 after LL 5268 arrives on the timetable: more than half a day, so not a connection we count.