DL 2988 then DL 2010 at Atlanta
Toronto → Atlanta → Omaha
Timetable, Atlanta time
10:00DL 2988 from Toronto at the gate
22:45DL 2010 to Omaha leaves the gate
12 h 45 apart on the timetable
DL 2010 leaves 12 h 45 after DL 2988 arrives on the timetable: more than half a day, so not a connection we count.