DL 67 then DL 5258 at Atlanta
Rome → Atlanta → Knoxville
Timetable, Atlanta time
18:54DL 67 from Rome at the gate
17:45DL 5258 to Knoxville leaves the gate
22 h 51 apart on the timetable, overnight
DL 5258 leaves 22 h 51 after DL 67 arrives on the timetable: more than half a day, so not a connection we count.