DL 2461 then DL 174 at Atlanta
Dayton → Atlanta → Milan
Timetable, Atlanta time
20:33DL 2461 from Dayton at the gate
19:50DL 174 to Milan leaves the gate
23 h 17 apart on the timetable, overnight
DL 174 leaves 23 h 17 after DL 2461 arrives on the timetable: more than half a day, so not a connection we count.