F9 4702 then DL 2939 at Atlanta
Austin → Atlanta → Memphis
Timetable, Atlanta time
19:10F9 4702 from Austin at the gate
18:05DL 2939 to Memphis leaves the gate
22 h 55 apart on the timetable, overnight
DL 2939 leaves 22 h 55 after F9 4702 arrives on the timetable: more than half a day, so not a connection we count.