DL 811 then BA 206 at Miami
Los Angeles → Miami → London
Timetable, Miami time
17:22DL 811 from Los Angeles at the gate
17:10BA 206 to London leaves the gate
23 h 48 apart on the timetable, overnight
BA 206 leaves 23 h 48 after DL 811 arrives on the timetable: more than half a day, so not a connection we count.