DL 1402 then DL 903 at Atlanta
Richmond → Atlanta → Seattle
Timetable, Atlanta time
08:45DL 1402 from Richmond at the gate
21:15DL 903 to Seattle leaves the gate
12 h 30 apart on the timetable
DL 903 leaves 12 h 30 after DL 1402 arrives on the timetable: more than half a day, so not a connection we count.