DL 3100 then DL 598 at Atlanta
Birmingham (Alabama) → Atlanta → Cancún
Timetable, Atlanta time
11:15DL 3100 from Birmingham (Alabama) at the gate
11:02DL 598 to Cancún leaves the gate
23 h 47 apart on the timetable, overnight
DL 598 leaves 23 h 47 after DL 3100 arrives on the timetable: more than half a day, so not a connection we count.