AA 1716 then AA 5418 at DFW
Greensboro → Dallas-Fort Worth → Harlingen
Timetable, Dallas-Fort Worth time
09:21AA 1716 from Greensboro at the gate
21:48AA 5418 to Harlingen leaves the gate
12 h 27 apart on the timetable
AA 5418 leaves 12 h 27 after AA 1716 arrives on the timetable: more than half a day, so not a connection we count.