DL 4654 then DL 2501 at Atlanta
Knoxville → Atlanta → Memphis
Timetable, Atlanta time
09:44DL 4654 from Knoxville at the gate
22:45DL 2501 to Memphis leaves the gate
13 h 01 apart on the timetable
DL 2501 leaves 13 h 01 after DL 4654 arrives on the timetable: more than half a day, so not a connection we count.