DL 686 then DL 5429 at Atlanta
Savannah → Atlanta → Columbus (Georgia)
Timetable, Atlanta time
08:50DL 686 from Savannah at the gate
20:55DL 5429 to Columbus (Georgia) leaves the gate
12 h 05 apart on the timetable
DL 5429 leaves 12 h 05 after DL 686 arrives on the timetable: more than half a day, so not a connection we count.