AA 1922 then AA 2238 at DFW
Las Vegas → Dallas-Fort Worth → Nashville
Timetable, Dallas-Fort Worth time
19:06AA 1922 from Las Vegas at the gate
16:12AA 2238 to Nashville leaves the gate
21 h 06 apart on the timetable, overnight
AA 2238 leaves 21 h 06 after AA 1922 arrives on the timetable: more than half a day, so not a connection we count.