DL 1687 then DL 1967 at Atlanta
Chicago O'Hare → Atlanta → Phoenix
Timetable, Atlanta time
11:00DL 1687 from Chicago O'Hare at the gate
00:23DL 1967 to Phoenix leaves the gate
13 h 23 apart on the timetable, overnight
DL 1967 leaves 13 h 23 after DL 1687 arrives on the timetable: more than half a day, so not a connection we count.