AA 1922 then AA 2957 at DFW
Las Vegas → Dallas-Fort Worth → Mc Allen
Timetable, Dallas-Fort Worth time
19:06AA 1922 from Las Vegas at the gate
16:44AA 2957 to Mc Allen leaves the gate
21 h 38 apart on the timetable, overnight
AA 2957 leaves 21 h 38 after AA 1922 arrives on the timetable: more than half a day, so not a connection we count.