DL 2173 then WN 2258 at Salt Lake City
Boise → Salt Lake City → Las Vegas
Timetable, Salt Lake City time
07:15DL 2173 from Boise at the gate
21:25WN 2258 to Las Vegas leaves the gate
14 h 10 apart on the timetable
WN 2258 leaves 14 h 10 after DL 2173 arrives on the timetable: more than half a day, so not a connection we count.