DL 1147 then DL 1671 at Atlanta
Chicago O'Hare → Atlanta → Jackson (Mississippi)
Timetable, Atlanta time
14:29DL 1147 from Chicago O'Hare at the gate
14:19DL 1671 to Jackson (Mississippi) leaves the gate
23 h 50 apart on the timetable, overnight
DL 1671 leaves 23 h 50 after DL 1147 arrives on the timetable: more than half a day, so not a connection we count.