AA 1922 then AA 572 at DFW
Las Vegas → Dallas-Fort Worth → Chicago O'Hare
Timetable, Dallas-Fort Worth time
19:06AA 1922 from Las Vegas at the gate
17:20AA 572 to Chicago O'Hare leaves the gate
22 h 14 apart on the timetable, overnight
AA 572 leaves 22 h 14 after AA 1922 arrives on the timetable: more than half a day, so not a connection we count.