BA 252 then BA 470 at Heathrow
Grand Cayman → London → Palma de Mallorca
Timetable, London time
11:15BA 252 from Grand Cayman at the gate
08:00BA 470 to Palma de Mallorca leaves the gate
20 h 45 apart on the timetable, overnight
BA 470 leaves 20 h 45 after BA 252 arrives on the timetable: more than half a day, so not a connection we count.