DL 5175 then DL 391 at Atlanta
Chattanooga → Atlanta → Reno
Timetable, Atlanta time
20:35DL 5175 from Chattanooga at the gate
19:50DL 391 to Reno leaves the gate
23 h 15 apart on the timetable, overnight
DL 391 leaves 23 h 15 after DL 5175 arrives on the timetable: more than half a day, so not a connection we count.