DL 2599 then DL 5429 at Atlanta
Madison → Atlanta → Columbus (Georgia)
Timetable, Atlanta time
22:59DL 2599 from Madison at the gate
20:50DL 5429 to Columbus (Georgia) leaves the gate
21 h 51 apart on the timetable, overnight
DL 5429 leaves 21 h 51 after DL 2599 arrives on the timetable: more than half a day, so not a connection we count.