DL 4097 then DL 3143 at Atlanta
South Bend → Atlanta → Lexington
Timetable, Atlanta time
16:02DL 4097 from South Bend at the gate
15:41DL 3143 to Lexington leaves the gate
23 h 39 apart on the timetable, overnight
DL 3143 leaves 23 h 39 after DL 4097 arrives on the timetable: more than half a day, so not a connection we count.