F9 2633 then DL 1384 at Atlanta
Baltimore → Atlanta → Buffalo
Timetable, Atlanta time
09:14F9 2633 from Baltimore at the gate
09:06DL 1384 to Buffalo leaves the gate
23 h 52 apart on the timetable, overnight
DL 1384 leaves 23 h 52 after F9 2633 arrives on the timetable: more than half a day, so not a connection we count.