DL 4654 then DL 1403 at Atlanta
Knoxville → Atlanta → St Louis
Timetable, Atlanta time
09:44DL 4654 from Knoxville at the gate
23:10DL 1403 to St Louis leaves the gate
13 h 26 apart on the timetable
DL 1403 leaves 13 h 26 after DL 4654 arrives on the timetable: more than half a day, so not a connection we count.