DL 885 then DL 1892 at Atlanta
Salt Lake City → Atlanta → Chattanooga
Timetable, Atlanta time
16:46DL 885 from Salt Lake City at the gate
14:30DL 1892 to Chattanooga leaves the gate
21 h 44 apart on the timetable, overnight
DL 1892 leaves 21 h 44 after DL 885 arrives on the timetable: more than half a day, so not a connection we count.