DL 724 then DL 4137 at Atlanta
Knoxville → Atlanta → Shreveport
Timetable, Atlanta time
15:45DL 724 from Knoxville at the gate
15:40DL 4137 to Shreveport leaves the gate
23 h 55 apart on the timetable, overnight
DL 4137 leaves 23 h 55 after DL 724 arrives on the timetable: more than half a day, so not a connection we count.