AA 9909 then AA 3387 at Phoenix
Salt Lake City → Phoenix → Carlsbad McClellan-Palomar
Timetable, Phoenix time
14:30AA 9909 from Salt Lake City at the gate
10:26AA 3387 to Carlsbad McClellan-Palomar leaves the gate
19 h 56 apart on the timetable, overnight
AA 3387 leaves 19 h 56 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.