DL 1397 then DL 3020 at Atlanta
Austin → Atlanta → Memphis
Timetable, Atlanta time
20:10DL 1397 from Austin at the gate
19:59DL 3020 to Memphis leaves the gate
23 h 49 apart on the timetable, overnight
DL 3020 leaves 23 h 49 after DL 1397 arrives on the timetable: more than half a day, so not a connection we count.