AA 1922 then AA 5068 at DFW
Las Vegas → Dallas-Fort Worth → Chattanooga
Timetable, Dallas-Fort Worth time
19:06AA 1922 from Las Vegas at the gate
15:36AA 5068 to Chattanooga leaves the gate
20 h 30 apart on the timetable, overnight
AA 5068 leaves 20 h 30 after AA 1922 arrives on the timetable: more than half a day, so not a connection we count.