DL 541 then DL 8918 at Dulles
Seattle → Washington → Atlanta (ATL)
Timetable, Washington time
00:20DL 541 from Seattle at the gate
23:15DL 8918 to Atlanta (ATL) leaves the gate
22 h 55 apart on the timetable
DL 8918 leaves 22 h 55 after DL 541 arrives on the timetable: more than half a day, so not a connection we count.