DL 2479 then DL 2891 at Atlanta
Portland (Maine) → Atlanta → Ontario
Timetable, Atlanta time
17:03DL 2479 from Portland (Maine) at the gate
16:55DL 2891 to Ontario leaves the gate
23 h 52 apart on the timetable, overnight
DL 2891 leaves 23 h 52 after DL 2479 arrives on the timetable: more than half a day, so not a connection we count.