DL 3199 then WN 2138 at Atlanta
Gulfport → Atlanta → Baltimore
Timetable, Atlanta time
12:25DL 3199 from Gulfport at the gate
12:00WN 2138 to Baltimore leaves the gate
23 h 35 apart on the timetable, overnight
WN 2138 leaves 23 h 35 after DL 3199 arrives on the timetable: more than half a day, so not a connection we count.