VY 3617 then BA 483 at Barcelona
Mahón → Barcelona → London Heathrow
Timetable, Barcelona time
20:10VY 3617 from Mahón at the gatealso QR 3734, IB 5284, LL 5284
15:30BA 483 to London Heathrow leaves the gatealso IB 3780, AY 5938, QR 5984, AA 7061, VY 9561
19 h 20 apart on the timetable, overnight
BA 483 leaves 19 h 20 after VY 3617 arrives on the timetable: more than half a day, so not a connection we count.