DL 1680 then DL 1929 at Atlanta
Cincinnati → Atlanta → Monterrey
Timetable, Atlanta time
21:43DL 1680 from Cincinnati at the gate
10:10DL 1929 to Monterrey leaves the gate
12 h 27 apart on the timetable, overnight
DL 1929 leaves 12 h 27 after DL 1680 arrives on the timetable: more than half a day, so not a connection we count.