DL 2909 then DL 5245 at Atlanta
Columbus (Ohio) → Atlanta → Knoxville
Timetable, Atlanta time
08:48DL 2909 from Columbus (Ohio) at the gate
08:11DL 5245 to Knoxville leaves the gate
23 h 23 apart on the timetable, overnight
DL 5245 leaves 23 h 23 after DL 2909 arrives on the timetable: more than half a day, so not a connection we count.