DL 1384 then DL 472 at Atlanta
Buffalo → Atlanta → Seattle
Timetable, Atlanta time
14:30DL 1384 from Buffalo at the gate
14:05DL 472 to Seattle leaves the gate
23 h 35 apart on the timetable, overnight
DL 472 leaves 23 h 35 after DL 1384 arrives on the timetable: more than half a day, so not a connection we count.