AA 6358 then AA 1355 at DFW
St George → Dallas-Fort Worth → Oklahoma City
Timetable, Dallas-Fort Worth time
14:57AA 6358 from St George at the gate
13:11AA 1355 to Oklahoma City leaves the gate
22 h 14 apart on the timetable, overnight
AA 1355 leaves 22 h 14 after AA 6358 arrives on the timetable: more than half a day, so not a connection we count.