DL 175 then DL 1892 at Atlanta
Milan → Atlanta → Chattanooga
Timetable, Atlanta time
17:45DL 175 from Milan at the gate
14:30DL 1892 to Chattanooga leaves the gate
20 h 45 apart on the timetable, overnight
DL 1892 leaves 20 h 45 after DL 175 arrives on the timetable: more than half a day, so not a connection we count.