AA 6278 then DL 3929 at LAX
Sacramento → Los Angeles → Reno
Timetable, Los Angeles time
21:02AA 6278 from Sacramento at the gate
20:08DL 3929 to Reno leaves the gate
23 h 06 apart on the timetable, overnight
DL 3929 leaves 23 h 06 after AA 6278 arrives on the timetable: more than half a day, so not a connection we count.