AA 4127 then AA 6238 at DFW
Houston Hobby → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
15:27AA 4127 from Houston Hobby at the gate
08:25AA 6238 to Amarillo leaves the gate
16 h 58 apart on the timetable, overnight
AA 6238 leaves 16 h 58 after AA 4127 arrives on the timetable: more than half a day, so not a connection we count.