SN 3714 then BA 393 at Brussels
Bilbao → Brussels → London Heathrow
Timetable, Brussels time
18:55SN 3714 from Bilbao at the gate
17:35BA 393 to London Heathrow leaves the gate
22 h 40 apart on the timetable, overnight
BA 393 leaves 22 h 40 after SN 3714 arrives on the timetable: more than half a day, so not a connection we count.