DL 2999 then DL 2322 at Atlanta
Milwaukee → Atlanta → Omaha
Timetable, Atlanta time
13:21DL 2999 from Milwaukee at the gate
11:00DL 2322 to Omaha leaves the gate
21 h 39 apart on the timetable, overnight
DL 2322 leaves 21 h 39 after DL 2999 arrives on the timetable: more than half a day, so not a connection we count.