AA 1922 then AA 1728 at DFW
Las Vegas → Dallas-Fort Worth → Cincinnati
Timetable, Dallas-Fort Worth time
19:06AA 1922 from Las Vegas at the gate
15:13AA 1728 to Cincinnati leaves the gate
20 h 07 apart on the timetable, overnight
AA 1728 leaves 20 h 07 after AA 1922 arrives on the timetable: more than half a day, so not a connection we count.