DL 2779 then DL 472 at Atlanta
Boston → Atlanta → Seattle
Timetable, Atlanta time
15:10DL 2779 from Boston at the gate
14:05DL 472 to Seattle leaves the gate
22 h 55 apart on the timetable, overnight
DL 472 leaves 22 h 55 after DL 2779 arrives on the timetable: more than half a day, so not a connection we count.