AA 794 then AA 6238 at DFW
Miami → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
13:43AA 794 from Miami at the gate
08:25AA 6238 to Amarillo leaves the gate
18 h 42 apart on the timetable, overnight
AA 6238 leaves 18 h 42 after AA 794 arrives on the timetable: more than half a day, so not a connection we count.