DL 854 then DL 2891 at Atlanta
Springfield → Atlanta → Ontario
Timetable, Atlanta time
18:14DL 854 from Springfield at the gate
16:55DL 2891 to Ontario leaves the gate
22 h 41 apart on the timetable, overnight
DL 2891 leaves 22 h 41 after DL 854 arrives on the timetable: more than half a day, so not a connection we count.