DL 724 then DL 1892 at Atlanta
Knoxville → Atlanta → Chattanooga
Timetable, Atlanta time
15:45DL 724 from Knoxville at the gate
14:30DL 1892 to Chattanooga leaves the gate
22 h 45 apart on the timetable, overnight
DL 1892 leaves 22 h 45 after DL 724 arrives on the timetable: more than half a day, so not a connection we count.