F9 4025 then DL 5203 at Atlanta
Orlando → Atlanta → Knoxville
Timetable, Atlanta time
18:37F9 4025 from Orlando at the gate
18:33DL 5203 to Knoxville leaves the gate
23 h 56 apart on the timetable, overnight
DL 5203 leaves 23 h 56 after F9 4025 arrives on the timetable: more than half a day, so not a connection we count.