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Uncover the best deals on St Louis to Las Vegas flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest STL - LAS Flights
Useful information for finding best airline tickets from Lambert St Louis International to McCarran International on your next trip.
Cheapest Round Trip Flight
$306
Delta Airlines
• 1 stop
• 12h 30m
Dec 17 – Dec 20
The cheapest round trip flight from St Louis to Las Vegas (STL-LAS-STL) is currently $306
Cheapest Direct Flight
$283
Southwest Airlines
• nonstop
• 5h 40m
Dec 30
The cheapest nonstop flight from St Louis to Las Vegas (STL-LAS) is currently $283
Fastest Flight
5h 30m
The fastest nonstop flight from St Louis to Las Vegas (STL-LAS) takes 5h 30m
Top Airlines Flying from St Louis to Las Vegas
Latest Flight Deals from St Louis (STL) to Las Vegas (LAS)
Compare and book low fare round-trip air tickets from St Louis to Las Vegas. Ideal for travelers with confirmed return itineraries.
Dec 17 - Dec 20, Economy
St Louis → Las Vegas
12h 30m
2:17 PM - 8:07 PM • 1 stop
St Louis → Las Vegas
10h 38m
12:05 PM - 8:43 PM • 1 stop
Delta Airlines
Dec 17 - Dec 20, Economy
St Louis → Las Vegas
5h 35m
1:00 PM - 2:35 PM • nonstop
St Louis → Las Vegas
5h 10m
8:35 PM - 1:45 AM • nonstop
Southwest Airlines
Dec 17 - Dec 20, Economy
St Louis → Las Vegas
5h 35m
1:00 PM - 2:35 PM • nonstop
St Louis → Las Vegas
7h 5m
12:45 PM - 7:10 PM • 1 stop
Southwest Airlines
Dec 17 - Dec 20, Economy
St Louis → Las Vegas
5h 35m
4:00 PM - 5:35 PM • nonstop
St Louis → Las Vegas
7h 5m
12:45 PM - 7:10 PM • 1 stop
Southwest Airlines
Dec 17 - Dec 20, Economy
St Louis → Las Vegas
12h 29m
5:31 PM - 11:20 PM • 1 stop
St Louis → Las Vegas
10h 49m
3:06 PM - 11:55 PM • 1 stop
Delta Airlines
Looking for the fastest way to Las Vegas? These direct flight options from STL to LAS offer both convenience and value—no layovers, just straight to your destination.
Dec 30 - Jan 11, Economy
St Louis → Las Vegas
5h 40m
9:55 PM - 11:35 PM • nonstop
St Louis → Las Vegas
5h 15m
11:15 AM - 4:30 PM • nonstop
Southwest Airlines
Dec 17 - Dec 20, Economy
St Louis → Las Vegas
5h 35m
1:00 PM - 2:35 PM • nonstop
St Louis → Las Vegas
5h 10m
8:35 PM - 1:45 AM • nonstop
Southwest Airlines
Dec 17 - Dec 20, Economy
St Louis → Las Vegas
5h 30m
8:25 AM - 9:55 AM • nonstop
St Louis → Las Vegas
5h 5m
12:40 PM - 5:45 PM • nonstop
Southwest Airlines
Dec 17 - Dec 20, Economy
St Louis → Las Vegas
5h 40m
5:35 AM - 7:15 AM • nonstop
St Louis → Las Vegas
5h 10m
2:00 PM - 7:10 PM • nonstop
Southwest Airlines
Dec 17 - Dec 20, Economy
St Louis → Las Vegas
5h 35m
4:00 PM - 5:35 PM • nonstop
St Louis → Las Vegas
5h 5m
7:20 AM - 12:25 PM • nonstop
Southwest Airlines
FAQs on St Louis to Las Vegas Flights
What are the airports in St Louis?
STL
What’s the most popular airline flying from STL to LAS?
The most popular airline flying from St Louis to Las Vegas are
Can I fly from STL to LAS non-stop?
Yes, you can fly STL to LAS non-stop on
Which airlines fly nonstop between St Louis and Las Vegas?
The non-stop flights between St Louis and Las Vegas are .
What’s the earliest departure time from STL to LAS Airport?
The earliest flight leaves STL at 5:35 am and lands in LAS - McCarran International
What are the airports in Las Vegas?
LAS
Can I make changes to my St Louis to Las Vegas flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from STL to LAS?
Read the fare rules of the St Louis to Las Vegas air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from St Louis and Las Vegas?
operate flights between St Louis and Las Vegas
How long does a flight from St Louis to Las Vegas take?
It takes approximately 3 hour to fly non-stop from STL to LAS, which is 1371.3 miles by air.
Which airlines provide the cheapest flights from St Louis (STL) to Las Vegas (LAS) ?
In the past couple of days, the cheapest tickets to LAS from STL were found on WN : USD 325
Do I need a passport to fly between STL and LAS?
No
What’s the latest departure time from STL to LAS ?
The last flight leaves STL at 10:10 pm
St Louis (STL) to Las Vegas (LAS): Airport Information
| Origin Airport | Lambert St Louis International , St Louis, US |
| Destination Airport | McCarran International , Las Vegas, US |
| Distance | 1371 miles |
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