STL to LAS Flights: Secure the Best Deals for Your Vegas Escape
Cheapest flight found
$150
Last updated Mar 13, 2026
Prices by Month
Price History
Tracking the May 7, 2026 departure — the cheapest date we found.
Price Behavior: STL → LAS
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$150
Highest Fare
$230
Median Fare
$187
Price Spread
$80
Prices fluctuate moderately — tracking can help you catch dips.
Cheapest month to fly: May 2026 (from $150)
Most expensive month: April 2026 (from $230)
Biggest price drop caught: $110 between consecutive checks
Most frequent cheapest airline: United
What This Means for You
Flights from St. Louis to Las Vegas range from $150 to $230, a $80 spread across the months we track. If your dates are flexible, May 2026 tends to have the lowest fares. Prices move enough that tracking can save you money — drops often last only a few hours before the algorithm adjusts back up. We have caught drops as large as $110 between hourly checks on this route.
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From
St. Louis (STL)
To
Las Vegas (LAS)
Airport Information
St. Louis (STL)
St. Louis Lambert International Airport (STL) serves as the primary commercial hub for the Greater St. Louis area, located about 14 miles northwest of downtown. As a historic airport that played a significant role in aviation history, it now offers two main terminals connected by a shuttle service and the MetroLink light rail system. Travelers can enjoy local favorites like Imo's Pizza while waiting for their departure, and the airport's efficient layout generally allows for manageable security lines during non-peak hours.
Las Vegas (LAS)
Harry Reid International Airport (LAS), formerly known as McCarran, is located just five miles from downtown Las Vegas and even closer to the iconic Strip. It is one of the busiest airports in the United States, featuring two separate terminal buildings that are not physically connected, so checking your airline's terminal in advance is crucial. Upon arrival, visitors are immediately greeted by the sounds of slot machines, setting the tone for the city's unique atmosphere, with ample transport options including shuttles, ride-shares, and limousines.
Frequently Asked Questions
How long is the flight from STL to LAS?
The average non-stop flight duration from St. Louis to Las Vegas is approximately 3 hours and 45 minutes, though tailwinds can sometimes shorten the return trip.
Which airlines fly direct from St. Louis to Las Vegas?
Southwest Airlines and Frontier Airlines are the primary carriers offering non-stop service, while others like American and Delta offer connecting flights through their respective hubs.
What is the time difference between St. Louis and Las Vegas?
Las Vegas is in the Pacific Time Zone, which is two hours behind the Central Time Zone used in St. Louis.
Is there public transportation from LAS to the Strip?
Yes, the RTC (Regional Transportation Commission of Southern Nevada) operates several bus routes, including the Westcliff Airport Express, which connect the airport to various parts of the city.
Are there lounges at STL airport?
Yes, St. Louis Lambert International Airport features an American Airlines Admirals Club in Terminal 1 and a USO Lounge for military members and their families.
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