AA 1922 then AA 6257 at DFW
Las Vegas → Dallas-Fort Worth → Lafayette
Timetable, Dallas-Fort Worth time
19:06AA 1922 from Las Vegas at the gate
17:57AA 6257 to Lafayette leaves the gate
22 h 51 apart on the timetable, overnight
AA 6257 leaves 22 h 51 after AA 1922 arrives on the timetable: more than half a day, so not a connection we count.