DL 856 then AA 6238 at DFW
New York LaGuardia → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
12:43DL 856 from New York LaGuardia at the gate
08:25AA 6238 to Amarillo leaves the gate
19 h 42 apart on the timetable, overnight
AA 6238 leaves 19 h 42 after DL 856 arrives on the timetable: more than half a day, so not a connection we count.