There are 1,375.18 miles from Saint Louis to Las Vegas in west direction and 1,603 miles (2,579.78 kilometers) by car, following the I-70 and US-40 and KS 4 route.
Saint Louis and Las Vegas are 1 day 3 hours far apart, if you drive non-stop.
This is the fastest route from Saint Louis, MO to Las Vegas, NV. The halfway point is Genoa, CO.
Please note the time difference between Saint Louis, MO and Las Vegas, NV is 2 hours. The current time in Saint Louis is 9:42 pm and the current time in Las Vegas is 7:42 pm.
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