DL 1472 then DL 1892 at Atlanta
Key West → Atlanta → Chattanooga
Timetable, Atlanta time
16:12DL 1472 from Key West at the gate
14:30DL 1892 to Chattanooga leaves the gate
22 h 18 apart on the timetable, overnight
DL 1892 leaves 22 h 18 after DL 1472 arrives on the timetable: more than half a day, so not a connection we count.