DL 3199 then DL 2020 at Atlanta
Gulfport → Atlanta → Oklahoma City
Timetable, Atlanta time
12:25DL 3199 from Gulfport at the gate
11:20DL 2020 to Oklahoma City leaves the gate
22 h 55 apart on the timetable, overnight
DL 2020 leaves 22 h 55 after DL 3199 arrives on the timetable: more than half a day, so not a connection we count.