DL 3122 then DL 2467 at Atlanta
Pittsburgh → Atlanta → Knoxville
Timetable, Atlanta time
21:48DL 3122 from Pittsburgh at the gate
21:04DL 2467 to Knoxville leaves the gate
23 h 16 apart on the timetable, overnight
DL 2467 leaves 23 h 16 after DL 3122 arrives on the timetable: more than half a day, so not a connection we count.