AA 1608 then AA 6238 at DFW
New York LaGuardia → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
19:10AA 1608 from New York LaGuardia at the gate
08:25AA 6238 to Amarillo leaves the gate
13 h 15 apart on the timetable, overnight
AA 6238 leaves 13 h 15 after AA 1608 arrives on the timetable: more than half a day, so not a connection we count.