DL 652 then DL 5258 at Atlanta
Seattle → Atlanta → Knoxville
Timetable, Atlanta time
07:32DL 652 from Seattle at the gate
21:04DL 5258 to Knoxville leaves the gate
13 h 32 apart on the timetable
DL 5258 leaves 13 h 32 after DL 652 arrives on the timetable: more than half a day, so not a connection we count.