DL 8839 then WN 4954 at Phoenix
Salt Lake City → Phoenix → San Diego
Timetable, Phoenix time
03:49DL 8839 from Salt Lake City at the gate
16:35WN 4954 to San Diego leaves the gate
12 h 46 apart on the timetable
WN 4954 leaves 12 h 46 after DL 8839 arrives on the timetable: more than half a day, so not a connection we count.