DL 2944 then DL 472 at Atlanta
Columbia → Atlanta → Seattle
Timetable, Atlanta time
15:08DL 2944 from Columbia at the gate
14:05DL 472 to Seattle leaves the gate
22 h 57 apart on the timetable, overnight
DL 472 leaves 22 h 57 after DL 2944 arrives on the timetable: more than half a day, so not a connection we count.