DL 1668 then DL 1892 at Atlanta
Indianapolis → Atlanta → Chattanooga
Timetable, Atlanta time
22:00DL 1668 from Indianapolis at the gate
14:30DL 1892 to Chattanooga leaves the gate
16 h 30 apart on the timetable, overnight
DL 1892 leaves 16 h 30 after DL 1668 arrives on the timetable: more than half a day, so not a connection we count.