Route Price Intelligence
Cheap Flights From St. Louis to Las Vegas
Live pricing benchmarks, monthly patterns, and historical lows for this route.
STL to Las Vegas is going for $234 on Frontier right now, down from a typical fare that usually runs closer to $470, a 50% drop. It's one stop each way, and this looks tied to a wider Frontier sale we're tracking this week, so grab a date that works for a winter desert getaway while the fare holds.
✓ 3 date combinations found at this price
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Best Time to Fly from St. Louis to Las Vegas
The cheapest time to fly from St. Louis to Las Vegas is typically August, when fares average around $254. The most expensive month tends to be April at around $469. For the best deals, consider flying in August, October, September.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Planning Las Vegas?
Best months to go, what a day on the ground costs, and the tours worth booking.
Read the Las Vegas guide →