AA 1622 then 8C 1231 at Miami
Las Vegas → Miami → San Juan
Timetable, Miami time
06:13AA 1622 from Las Vegas at the gate
00:008C 1231 to San Juan leaves the gate
17 h 47 apart on the timetable, overnight
8C 1231 leaves 17 h 47 after AA 1622 arrives on the timetable: more than half a day, so not a connection we count.