DL 2175 then DL 5245 at Atlanta
Washington National → Atlanta → Knoxville
Timetable, Atlanta time
08:56DL 2175 from Washington National at the gate
08:11DL 5245 to Knoxville leaves the gate
23 h 15 apart on the timetable, overnight
DL 5245 leaves 23 h 15 after DL 2175 arrives on the timetable: more than half a day, so not a connection we count.