DL 771 then DL 2457 at LAX
New York JFK → Los Angeles → Portland (Oregon)
Timetable, Los Angeles time
19:41DL 771 from New York JFK at the gate
18:30DL 2457 to Portland (Oregon) leaves the gate
22 h 49 apart on the timetable, overnight
DL 2457 leaves 22 h 49 after DL 771 arrives on the timetable: more than half a day, so not a connection we count.