DL 706 then DL 2891 at Atlanta
Denver → Atlanta → Ontario
Timetable, Atlanta time
18:01DL 706 from Denver at the gate
16:55DL 2891 to Ontario leaves the gate
22 h 54 apart on the timetable, overnight
DL 2891 leaves 22 h 54 after DL 706 arrives on the timetable: more than half a day, so not a connection we count.