DL 5175 then DL 866 at Atlanta
Chattanooga → Atlanta → Lexington
Timetable, Atlanta time
20:35DL 5175 from Chattanooga at the gate
20:10DL 866 to Lexington leaves the gate
23 h 35 apart on the timetable, overnight
DL 866 leaves 23 h 35 after DL 5175 arrives on the timetable: more than half a day, so not a connection we count.