DL 4138 then WN 2258 at Salt Lake City
Fresno → Salt Lake City → Las Vegas
Timetable, Salt Lake City time
08:55DL 4138 from Fresno at the gate
21:25WN 2258 to Las Vegas leaves the gate
12 h 30 apart on the timetable
WN 2258 leaves 12 h 30 after DL 4138 arrives on the timetable: more than half a day, so not a connection we count.