GateConnections

BA 280 then BA 934 at Heathrow

Los Angeles → London → Düsseldorf

Timetable, London time

12:30BA 280 from Los Angeles at the gate

12:25BA 934 to Düsseldorf leaves the gate

23 h 55 apart on the timetable, overnight

BA 934 leaves 23 h 55 after BA 280 arrives on the timetable: more than half a day, so not a connection we count.