Nonstop route
St Louis to Las Vegas nonstop
Yes — Southwest and Frontier fly STL to LAS nonstop year-round — about 6× daily.
STLSt Louis
✈
LASLas Vegas
6× daily41.3 flights a week
Year-round41.3/wk Jun vs 36.1/wk Jan
$150–$325typical one-way · median $225
1,371miles nonstop
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Fares are what people actually paid: half of the 3,253 tickets in the US DOT fare survey for this route sold between $150 and $325 one way, median $225. That survey runs a couple of quarters behind, so treat it as the shape of the route's pricing rather than today's quote.
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