AA 1922 then AA 1251 at DFW
Las Vegas → Dallas-Fort Worth → New Orleans
Timetable, Dallas-Fort Worth time
19:06AA 1922 from Las Vegas at the gate
16:11AA 1251 to New Orleans leaves the gate
21 h 05 apart on the timetable, overnight
AA 1251 leaves 21 h 05 after AA 1922 arrives on the timetable: more than half a day, so not a connection we count.