DL 2479 then DL 8771 at Atlanta
Portland (Maine) → Atlanta → San Francisco
Timetable, Atlanta time
17:03DL 2479 from Portland (Maine) at the gate
13:46DL 8771 to San Francisco leaves the gate
20 h 43 apart on the timetable, overnight
DL 8771 leaves 20 h 43 after DL 2479 arrives on the timetable: more than half a day, so not a connection we count.