AA 1620 then AA 4172 at DFW
Las Vegas → Dallas-Fort Worth → Midland
Timetable, Dallas-Fort Worth time
21:47AA 1620 from Las Vegas at the gate
21:36AA 4172 to Midland leaves the gate
23 h 49 apart on the timetable, overnight
AA 4172 leaves 23 h 49 after AA 1620 arrives on the timetable: more than half a day, so not a connection we count.