DL 1189 then DL 5258 at Atlanta
Allentown → Atlanta → Knoxville
Timetable, Atlanta time
20:24DL 1189 from Allentown at the gate
17:45DL 5258 to Knoxville leaves the gate
21 h 21 apart on the timetable, overnight
DL 5258 leaves 21 h 21 after DL 1189 arrives on the timetable: more than half a day, so not a connection we count.