DL 2461 then DL 1139 at Atlanta
Dayton → Atlanta → Chicago O'Hare
Timetable, Atlanta time
20:33DL 2461 from Dayton at the gate
19:35DL 1139 to Chicago O'Hare leaves the gate
23 h 02 apart on the timetable, overnight
DL 1139 leaves 23 h 02 after DL 2461 arrives on the timetable: more than half a day, so not a connection we count.