DL 1247 then DL 1967 at Atlanta
Chicago O'Hare → Atlanta → Phoenix
Timetable, Atlanta time
09:55DL 1247 from Chicago O'Hare at the gate
00:23DL 1967 to Phoenix leaves the gate
14 h 28 apart on the timetable, overnight
DL 1967 leaves 14 h 28 after DL 1247 arrives on the timetable: more than half a day, so not a connection we count.