DL 1443 then DL 1939 at Atlanta
Kansas City → Atlanta → Cancún
Timetable, Atlanta time
18:54DL 1443 from Kansas City at the gate
18:29DL 1939 to Cancún leaves the gate
23 h 35 apart on the timetable, overnight
DL 1939 leaves 23 h 35 after DL 1443 arrives on the timetable: more than half a day, so not a connection we count.