F9 3871 then AA 1594 at Phoenix
Salt Lake City → Phoenix → Austin
Timetable, Phoenix time
14:46F9 3871 from Salt Lake City at the gate
13:58AA 1594 to Austin leaves the gate
23 h 12 apart on the timetable, overnight
AA 1594 leaves 23 h 12 after F9 3871 arrives on the timetable: more than half a day, so not a connection we count.