B6 387 then DL 3929 at LAX
Boston → Los Angeles → Reno
Timetable, Los Angeles time
00:55B6 387 from Boston at the gate
20:08DL 3929 to Reno leaves the gate
19 h 13 apart on the timetable
DL 3929 leaves 19 h 13 after B6 387 arrives on the timetable: more than half a day, so not a connection we count.