F9 4949 then UA 453 at Phoenix
Salt Lake City → Phoenix → San Diego
Timetable, Phoenix time
19:28F9 4949 from Salt Lake City at the gate
16:37UA 453 to San Diego leaves the gate
21 h 09 apart on the timetable, overnight
UA 453 leaves 21 h 09 after F9 4949 arrives on the timetable: more than half a day, so not a connection we count.