DL 1915 then DL 631 at LAX
New York JFK → Los Angeles → Mexico City
Timetable, Los Angeles time
21:29DL 1915 from New York JFK at the gate
09:30DL 631 to Mexico City leaves the gate
12 h 01 apart on the timetable, overnight
DL 631 leaves 12 h 01 after DL 1915 arrives on the timetable: more than half a day, so not a connection we count.