AA 1397 then AA 6238 at DFW
Houston → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
15:31AA 1397 from Houston at the gate
08:25AA 6238 to Amarillo leaves the gate
16 h 54 apart on the timetable, overnight
AA 6238 leaves 16 h 54 after AA 1397 arrives on the timetable: more than half a day, so not a connection we count.