AA 2797 then AA 6238 at DFW
Las Vegas → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
14:14AA 2797 from Las Vegas at the gate
08:25AA 6238 to Amarillo leaves the gate
18 h 11 apart on the timetable, overnight
AA 6238 leaves 18 h 11 after AA 2797 arrives on the timetable: more than half a day, so not a connection we count.