DL 1728 then DL 2013 at Atlanta
Chicago Midway → Atlanta → Phoenix
Timetable, Atlanta time
20:10DL 1728 from Chicago Midway at the gate
19:40DL 2013 to Phoenix leaves the gate
23 h 30 apart on the timetable, overnight
DL 2013 leaves 23 h 30 after DL 1728 arrives on the timetable: more than half a day, so not a connection we count.