DL 4671 then AA 2812 at LAX
Reno → Los Angeles → Boston
Timetable, Los Angeles time
16:42DL 4671 from Reno at the gate
15:37AA 2812 to Boston leaves the gate
22 h 55 apart on the timetable, overnight
AA 2812 leaves 22 h 55 after DL 4671 arrives on the timetable: more than half a day, so not a connection we count.