AA 1863 then AA 1355 at DFW
Las Vegas → Dallas-Fort Worth → Oklahoma City
Timetable, Dallas-Fort Worth time
13:25AA 1863 from Las Vegas at the gate
13:11AA 1355 to Oklahoma City leaves the gate
23 h 46 apart on the timetable, overnight
AA 1355 leaves 23 h 46 after AA 1863 arrives on the timetable: more than half a day, so not a connection we count.