DL 1668 then DL 866 at Atlanta
Indianapolis → Atlanta → Lexington
Timetable, Atlanta time
21:54DL 1668 from Indianapolis at the gate
20:10DL 866 to Lexington leaves the gate
22 h 16 apart on the timetable, overnight
DL 866 leaves 22 h 16 after DL 1668 arrives on the timetable: more than half a day, so not a connection we count.