F9 4409 then DL 2590 at Atlanta
Washington → Atlanta → Baltimore
Timetable, Atlanta time
23:13F9 4409 from Washington at the gate
23:09DL 2590 to Baltimore leaves the gate
23 h 56 apart on the timetable, overnight
DL 2590 leaves 23 h 56 after F9 4409 arrives on the timetable: more than half a day, so not a connection we count.