F9 4702 then DL 5203 at Atlanta
Austin → Atlanta → Knoxville
Timetable, Atlanta time
19:10F9 4702 from Austin at the gate
19:05DL 5203 to Knoxville leaves the gate
23 h 55 apart on the timetable, overnight
DL 5203 leaves 23 h 55 after F9 4702 arrives on the timetable: more than half a day, so not a connection we count.