DL 2142 then WN 2258 at Salt Lake City
Columbus (Ohio) → Salt Lake City → Las Vegas
Timetable, Salt Lake City time
09:05DL 2142 from Columbus (Ohio) at the gate
21:25WN 2258 to Las Vegas leaves the gate
12 h 20 apart on the timetable
WN 2258 leaves 12 h 20 after DL 2142 arrives on the timetable: more than half a day, so not a connection we count.