SY 8123 then AA 5418 at DFW
Gulfport → Dallas-Fort Worth → Harlingen
Timetable, Dallas-Fort Worth time
09:45SY 8123 from Gulfport at the gate
21:48AA 5418 to Harlingen leaves the gate
12 h 03 apart on the timetable
AA 5418 leaves 12 h 03 after SY 8123 arrives on the timetable: more than half a day, so not a connection we count.