BA 391 then BA 269 at Heathrow
Brussels → London → Los Angeles
Timetable, London time
16:15BA 391 from Brussels at the gate
15:10BA 269 to Los Angeles leaves the gate
22 h 55 apart on the timetable, overnight
BA 269 leaves 22 h 55 after BA 391 arrives on the timetable: more than half a day, so not a connection we count.