AA 3548 then AA 1355 at DFW
Gulfport → Dallas-Fort Worth → Oklahoma City
Timetable, Dallas-Fort Worth time
13:45AA 3548 from Gulfport at the gate
13:11AA 1355 to Oklahoma City leaves the gate
23 h 26 apart on the timetable, overnight
AA 1355 leaves 23 h 26 after AA 3548 arrives on the timetable: more than half a day, so not a connection we count.