MF 829 then DL 2457 at LAX
Xiamen → Los Angeles → Portland (Oregon)
Timetable, Los Angeles time
19:00MF 829 from Xiamen at the gate
18:30DL 2457 to Portland (Oregon) leaves the gate
23 h 30 apart on the timetable, overnight
DL 2457 leaves 23 h 30 after MF 829 arrives on the timetable: more than half a day, so not a connection we count.