DL 1866 then DL 996 at Atlanta
Monterrey → Atlanta → Los Angeles
Timetable, Atlanta time
17:11DL 1866 from Monterrey at the gate
07:00DL 996 to Los Angeles leaves the gate
13 h 49 apart on the timetable, overnight
DL 996 leaves 13 h 49 after DL 1866 arrives on the timetable: more than half a day, so not a connection we count.