Cheap flights from St. Louis to Las Vegas

Flights overview

Useful information for finding cheap flights from St. Louis to Las Vegas and booking your next trip
Cheapest round-trip flights $210
Frontier 1 stop 11 hr Thu, Jun 4 — Mon, Jun 8
The cheapest round-trip flight from St. Louis to Las Vegas is currently $210
Cheapest one-way flight $105
Frontier 1 stop 6 hr Sun, May 31
The cheapest one-way flight from St. Louis to Las Vegas is currently $105
Cheapest nonstop flights $238
Frontier Nonstop 4 hr Thu, Jun 4 — Mon, Jun 8
The cheapest nonstop round-trip flight from St. Louis to Las Vegas is currently $238
Last-minute weekend getaway $261
Frontier 1 stop 7 hr Sat, May 9 — Mon, May 11
The cheapest last-minute weekend getaway from St. Louis to Las Vegas is currently $261
Cheapest business class flights $472
Frontier Nonstop 4 hr Fri, Jun 5 — Mon, Jun 8
The cheapest business class round-trip flight from St. Louis to Las Vegas is currently $472
Fastest flight 3 hr 25 min The fastest nonstop flight from St. Louis to Las Vegas takes 3 hr 25 min
Nonstop flights Every day There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from St. Louis to Las Vegas is typically December. The most expensive month to fly is typically July.
December
Cheapest
Typical prices: $135–300
July
Most expensive
Typical prices: $235–365

Popular airlines from St. Louis to Las Vegas

  • Southwest
    Nonstop
    from $395
    Typical price: $330–580
    33 weekly nonstop flights
    STL - LAS Every day
    1252 weekly connecting flights
    STL - LAS Every day
  • American
    from $342
    Typical price: $280–560
    469 weekly connecting flights
    STL - LAS Every day
  • United
    from $342
    Typical price: $280–590
    317 weekly connecting flights
    STL - LAS Every day
  • Delta
    from $395
    Typical price: $315–720
    283 weekly connecting flights
    STL - LAS Every day
  • Frontier
    Nonstop
    from $210
    Typical price: $150–340
    5 weekly nonstop flights
    STL - LAS Every Mon, Tue, Thu, Fri, Sun
    17 weekly connecting flights
    STL - LAS Every day
  • Alaska
    from $553
    Typical price: $410–910
    22 weekly connecting flights
    STL - LAS Every day

Popular airports near St. Louis

  • St. Louis Lambert International Airport (STL)
    St. Louis United States 21 min 12 mi
  • General Wayne A. Downing Peoria International Airport (PIA)
    Peoria United States 2 hr 36 min 143 mi
  • Columbia Regional Airport (COU)
    Columbia United States 2 hr 8 min 109 mi
  • Indianapolis International Airport (IND)
    Indianapolis United States 3 hr 30 min 222 mi

Popular airports near Las Vegas

  • Harry Reid International Airport (LAS)
    Las Vegas United States 16 min 6 mi
  • St. George Regional Airport (SGU) (SGU)
    St. George United States 1 hr 52 min 108 mi
  • Boulder City Municipal Airport (BLD)
    Boulder City United States 26 min 22 mi
  • Cedar City Regional Airport (CDC)
    Cedar City United States 2 hr 31 min 154 mi

Frequently asked questions about flying from St. Louis to Las Vegas

The cheapest flights from St. Louis to Las Vegas are usually in December. Typical ticket prices in December range from $135 to $300.
The cheapest round-trip flight from St. Louis to Las Vegas recently found on Google Flights was with Frontier from $210. The cheapest one-way flight was with Frontier from $105.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from St. Louis to Las Vegas is $395, flying from Jun 4 to Jun 8.
  • The cheapest American flight from St. Louis to Las Vegas is $342, flying from May 30 to Jun 1.
  • The cheapest United flight from St. Louis to Las Vegas is $342, flying from May 28 to Jun 1.
  • The cheapest Delta flight from St. Louis to Las Vegas is $395, flying from Jun 4 to Jun 8.
  • The cheapest Frontier flight from St. Louis to Las Vegas is $210, flying from Jun 4 to Jun 8.
  • The cheapest Alaska flight from St. Louis to Las Vegas is $553, flying from Jun 6 to Jun 7.
The cheapest round-trip flight from St. Louis to Las Vegas starts at $210 from Thu, Jun 4 to Mon, Jun 8. The cheapest one-way flight starts at $105 and departs on Sun, May 31.
3 hr 25 min is the shortest flight time from St. Louis to Las Vegas.
Las Vegas is a busy year-round destination with a subtropical desert climate. There's no specific peak season, but crowds and prices increase around holidays and the many annual conventions. Popular events include the Consumer Electronic Show (Jan), the Project fashion trade show (Feb and Aug), NASCAR Weekend (Mar), the National Finals Rodeo (Dec), and New Year's Eve. During summer (Jun–Aug), extremely high daytime temperatures may make outdoor activities like golf and canyon hiking inadvisable.
It's easy to use Google Flights to find the cheapest days to fly from St. Louis to Las Vegas.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.
What counts as the best airline for your flights from St. Louis to Las Vegas really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from St. Louis to Las Vegas.

In terms of nonstop flights, Southwest is the most popular. Southwest offers 33 nonstop flights and 1,252 connecting flights per week. Southwest flies from St. Louis Lambert International Airport (STL) to Harry Reid International Airport (LAS) .

Other popular airlines flying from St. Louis to Las Vegas are:
  • American offers 469 connecting flights per week. American flies from St. Louis Lambert International Airport (STL) to Harry Reid International Airport (LAS) .
  • United offers 317 connecting flights per week. United flies from St. Louis Lambert International Airport (STL) to Harry Reid International Airport (LAS) .
  • Delta offers 283 connecting flights per week. Delta flies from St. Louis Lambert International Airport (STL) to Harry Reid International Airport (LAS) .
  • Frontier offers 5 nonstop flights and 17 connecting flights per week. Frontier flies from St. Louis Lambert International Airport (STL) to Harry Reid International Airport (LAS) .
  • Alaska offers 22 connecting flights per week. Alaska flies from St. Louis Lambert International Airport (STL) to Harry Reid International Airport (LAS) .
The number of connecting flights refers to distinct flights with at least one stop between St. Louis and Las Vegas.
The cheapest round-trip flight from St. Louis to Las Vegas recently found on Google Flights was with Frontier from $210. The cheapest one-way flight was with Frontier from $105.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from St. Louis to Las Vegas is $395, flying from Jun 4 to Jun 8.
  • The cheapest American flight from St. Louis to Las Vegas is $342, flying from May 30 to Jun 1.
  • The cheapest United flight from St. Louis to Las Vegas is $342, flying from May 28 to Jun 1.
  • The cheapest Delta flight from St. Louis to Las Vegas is $395, flying from Jun 4 to Jun 8.
  • The cheapest Frontier flight from St. Louis to Las Vegas is $210, flying from Jun 4 to Jun 8.
  • The cheapest Alaska flight from St. Louis to Las Vegas is $553, flying from Jun 6 to Jun 7.
Southwest and Frontier fly direct from St. Louis to Las Vegas.
  • There are 33 Southwest direct flights from St. Louis to Las Vegas per week. Flights are available every day.
  • There are 5 Frontier direct flights from St. Louis to Las Vegas per week. Flights are available on Monday, Tuesday, Thursday, Friday and Sunday.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
The cheapest last-minute deal between St. Louis and Las Vegas at price $261 is offered by Frontier from Sat, May 9 to Mon, May 11.
Southwest and Frontier fly direct from St. Louis to Las Vegas.
  • There are 33 Southwest direct flights from St. Louis to Las Vegas per week. Flights are available every day.
  • There are 5 Frontier direct flights from St. Louis to Las Vegas per week. Flights are available on Monday, Tuesday, Thursday, Friday and Sunday.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
There are direct flights from St. Louis to Las Vegas on a daily basis.
The cheapest direct (nonstop) round-trip flights between St. Louis and Las Vegas start at $238 from Thu, Jun 4 to Mon, Jun 8 with Frontier.
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from St. Louis to Las Vegas, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
The cheapest business class round-trip flights between St. Louis and Las Vegas start at $472 from Fri, Jun 5 to Mon, Jun 8 with Frontier.
The cheapest economy class round-trip flights between St. Louis and Las Vegas start at $210 from Thu, Jun 4 to Mon, Jun 8.
To book business class trips from St. Louis to Las Vegas, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.
The best last-minute getaway deal for the next weekend between St. Louis and Las Vegas starts at $261 from Sat, May 9 to Mon, May 11 with Frontier.
The cheapest last-minute deal between St. Louis and Las Vegas at price $261 is offered by Frontier from Sat, May 9 to Mon, May 11.
To find last-minute flight deals from St. Louis to Las Vegas, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.

Search more flights

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