DL 4991 then DL 472 at Atlanta
Alexandria → Atlanta → Seattle
Timetable, Atlanta time
14:34DL 4991 from Alexandria at the gate
14:05DL 472 to Seattle leaves the gate
23 h 31 apart on the timetable, overnight
DL 472 leaves 23 h 31 after DL 4991 arrives on the timetable: more than half a day, so not a connection we count.