AA 1451 then AA 3244 at Charlotte
Phoenix → Charlotte → Myrtle Beach
Timetable, Charlotte time
19:22AA 1451 from Phoenix at the gate
15:25AA 3244 to Myrtle Beach leaves the gate
20 h 03 apart on the timetable, overnight
AA 3244 leaves 20 h 03 after AA 1451 arrives on the timetable: more than half a day, so not a connection we count.