DL 5244 then DL 2891 at Atlanta
Huntsville → Atlanta → Ontario
Timetable, Atlanta time
17:05DL 5244 from Huntsville at the gate
16:55DL 2891 to Ontario leaves the gate
23 h 50 apart on the timetable, overnight
DL 2891 leaves 23 h 50 after DL 5244 arrives on the timetable: more than half a day, so not a connection we count.