HV 9004 then BA 391 at Brussels
Alicante → Brussels → London Heathrow
Timetable, Brussels time
21:35HV 9004 from Alicante at the gate
14:00BA 391 to London Heathrow leaves the gate
16 h 25 apart on the timetable, overnight
BA 391 leaves 16 h 25 after HV 9004 arrives on the timetable: more than half a day, so not a connection we count.