AA 1922 then AA 4084 at DFW
Las Vegas → Dallas-Fort Worth → Springfield
Timetable, Dallas-Fort Worth time
19:06AA 1922 from Las Vegas at the gate
16:50AA 4084 to Springfield leaves the gate
21 h 44 apart on the timetable, overnight
AA 4084 leaves 21 h 44 after AA 1922 arrives on the timetable: more than half a day, so not a connection we count.