AA 9909 then DL 1447 at Phoenix
Salt Lake City → Phoenix → Salt Lake City
Timetable, Phoenix time
14:30AA 9909 from Salt Lake City at the gate
10:55DL 1447 to Salt Lake City leaves the gate
20 h 25 apart on the timetable, overnight
DL 1447 leaves 20 h 25 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.