DL 1435 then DL 598 at Atlanta
Houston → Atlanta → Cancún
Timetable, Atlanta time
11:09DL 1435 from Houston at the gate
11:02DL 598 to Cancún leaves the gate
23 h 53 apart on the timetable, overnight
DL 598 leaves 23 h 53 after DL 1435 arrives on the timetable: more than half a day, so not a connection we count.