$38+ Cheap flights from St. Louis to Las Vegas (STL - LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAS
Oct 7 — Oct 141

Find cheap flights from St. Louis to Las Vegas with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Lambert-St Louis to Las Vegas Harry Reid Intl are usually found in April or May, booked 82 days in advance, depart on a Tuesday or Monday and return on a Friday

Cheap flight deals from St. Louis to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 2, 2024.

Popular in

December

Cheapest in

April

Round-trip from

$92
(Cheapflightsfares)

One-way from

$38
(Cheapflightsfares)
High demand for flights, 22% potential price rise
Best time to find cheap flights, 24% potential price drop
From Lambert-St Louis to Las Vegas Harry Reid Intl
One-way flight from Lambert-St Louis to Las Vegas Harry Reid Intl

Cheap St. Louis to Las Vegas flights in October & November 2024

Find cheap flight options from St. Louis to Las Vegas specifically for the months of October and November 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,666,977 searches. Prices were last updated on October 2, 2024.
Check out some of the best flight deals from St. Louis to Las Vegas in 2024. For more flight deals, be sure to check back very soon.
This Cheapflightsfares deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/114:09 pmSTL - LAS
1 stop9h 42mFrontier
Fri 11/153:54 pmLAS - STL
Nonstop3h 18mFrontier
Deal found 10/2$91
This CheapOair deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/135:11 pmSTL - LAS
1 stop9h 48mMultiple Airlines
Thu 10/178:44 pmLAS - STL
1 stop25h 03mMultiple Airlines
Deal found 10/1$156
This Southwest deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/307:10 pmSTL - LAS
Nonstop3h 35mSouthwest
Sat 11/26:25 amLAS - STL
Nonstop3h 10mSouthwest
Deal found 10/2$198
This FareScan deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/195:11 pmSTL - LAS
1 stop9h 48mSpirit Airlines
Wed 10/237:06 amLAS - STL
2 stops22h 36mSpirit Airlines
Deal found 10/1$205

St. Louis to Las Vegas 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Las Vegas in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,666,977 searches. Data last updated October 2, 2024.
Check out some of the best flight deals from St. Louis to Las Vegas in 2024. For more flight deals, be sure to check back very soon.
This Cheapflightsfares deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/114:09 pmSTL - LAS
1 stop9h 42mFrontier
Fri 11/153:54 pmLAS - STL
Nonstop3h 18mFrontier
Deal found 10/2$91
This CheapOair deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/135:11 pmSTL - LAS
1 stop9h 48mMultiple Airlines
Wed 10/1612:59 amLAS - STL
1 stop20h 22mMultiple Airlines
Deal found 10/1$156
This Southwest deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/307:10 pmSTL - LAS
Nonstop3h 35mSouthwest
Sat 11/26:25 amLAS - STL
Nonstop3h 10mSouthwest
Deal found 10/2$198
This FareScan deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/195:11 pmSTL - LAS
1 stop9h 48mSpirit Airlines
Wed 10/237:06 amLAS - STL
2 stops22h 36mSpirit Airlines
Deal found 10/1$205
This Delta deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:00 amSTL - LAS
1 stop6h 33mDelta
Sun 1/512:55 amLAS - STL
1 stop7h 43mDelta
Deal found 10/2$240

St. Louis to Las Vegas flights leaving soon

Find last-minute flight options from St. Louis to Las Vegas for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,666,977 searches. Data last updated October 2, 2024.
Users seeking a last-minute flight from St. Louis to Las Vegas should consider booking one of these fares. Tip: verify your flight details before completing your reservation.
This Cheapflightsfares deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/710:55 pmSTL - LAS
Nonstop3h 40mFrontier
Fri 10/114:44 pmLAS - STL
Nonstop3h 25mFrontier
Deal found 9/30$171
This FareScan deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/125:11 pmSTL - LAS
1 stop9h 48mSpirit Airlines
Sun 10/135:49 amLAS - STL
3 stops23h 53mSpirit Airlines
Deal found 10/2$340
This CheapOair deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/125:11 pmSTL - LAS
1 stop9h 48mMultiple Airlines
Sun 10/1311:03 pmLAS - STL
1 stop10h 20mMultiple Airlines
Deal found 10/2$386
This Southwest deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/97:10 pmSTL - LAS
Nonstop3h 35mSouthwest
Wed 10/166:10 pmLAS - STL
Nonstop3h 15mSouthwest
Deal found 10/2$446
This American Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/116:25 pmSTL - LAS
1 stop6h 55mAmerican Airlines
Fri 10/111:18 amLAS - STL
1 stop7h 28mAmerican Airlines
Deal found 10/1$473
This Alaska Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/97:00 amSTL - LAS
2 stops15h 24mAlaska Airlines
Sat 10/1211:00 amLAS - STL
1 stop10h 58mAlaska Airlines
Deal found 10/1$531
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/811:05 amSTL - LAS
2 stops11h 46mUnited Airlines
Thu 10/106:00 amLAS - STL
1 stop9h 08mUnited Airlines
Deal found 10/1$553

One-way flights to Las Vegas from St. Louis

Search for one-way flight options from St. Louis to Las Vegas. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,666,977 searches. Data last updated October 2, 2024.
Take a look at some of the best available options we've come across on one-way flights from St. Louis to Las Vegas. Those seeking round-trip flights from St. Louis to Las Vegas should utilize the search form at the the top of the page.
This Cheapflightsfares deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2110:59 pmSTL - LAS
Nonstop3h 42mFrontier
Deal found 9/30$38
This Cheapflightsfares deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/125:11 pmSTL - LAS
1 stop9h 48mSpirit Airlines
Deal found 10/1$70
This Southwest deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/297:10 pmSTL - LAS
Nonstop3h 35mSouthwest
Deal found 10/2$99
This Mytrip deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1412:15 pmSTL - LAS
2 stops14h 06mMultiple Airlines
Deal found 10/1$110
This Delta deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/146:35 pmSTL - LAS
1 stop7h 16mDelta
Deal found 10/1$129
This American Airlines deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/29:31 amSTL - LAS
2 stops12h 22mAmerican Airlines
Deal found 10/2$153
This Alaska Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/32:48 pmSTL - LAS
2 stops29h 31mAlaska Airlines
Deal found 10/1$167
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2311:05 amSTL - LAS
2 stops11h 46mUnited Airlines
Deal found 10/1$174

Find flights from St. Louis to Las Vegas within your budget

Customize your flight search to find flights from St. Louis to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,666,977 searches. Data last updated October 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$92 - $240

Route

Depart

Return

Price

Lambert-St LouisLas Vegas Harry Reid Intl

STL - LAS

STLLAS

Lambert-St Louis

Tue 11/12

1 stop15h 32m

Las Vegas Harry Reid Intl

Fri 11/15

Nonstop3h 18m

$92

Lambert-St LouisLas Vegas Harry Reid Intl

STL - LAS

STLLAS

Lambert-St Louis

Sun 10/13

1 stop9h 48m

Las Vegas Harry Reid Intl

Thu 10/17

1 stop25h 03m

$156

Lambert-St LouisLas Vegas Harry Reid Intl

STL - LAS

STLLAS

Lambert-St Louis

Sat 10/19

1 stop9h 48m

Las Vegas Harry Reid Intl

Wed 10/23

2 stops22h 36m

$205

Lambert-St LouisLas Vegas Harry Reid Intl

STL - LAS

STLLAS

Lambert-St Louis

Tue 10/29

Nonstop3h 35m

Las Vegas Harry Reid Intl

Tue 11/5

1 stop6h 05m

$208

Lambert-St LouisLas Vegas Harry Reid Intl

STL - LAS

STLLAS

Lambert-St Louis

Tue 12/17

1 stop5h 48m

Las Vegas Harry Reid Intl

Wed 12/18

1 stop7h 01m

$240

Flights are sorted by cheapest first

Deals found on 9/30

Best time to book a flight from St. Louis to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis to Las Vegas

Get recent, data-driven insights about flights from St. Louis to Las Vegas including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Las Vegas. Price data was last updated on September 27, 2024.

Booking 82 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Las Vegas. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from St. Louis to Las Vegas?

Currently, May is the cheapest month in which you can book a flight from St. Louis to Las Vegas (average of $58). Flying from St. Louis to Las Vegas in January is currently the most expensive (average of $118). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to LAS?

Find hourly flight availability from St. Louis to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 2, 2024.

It’s typically best to fly out from St. Louis to Las Vegas in the evening. Doing so could potentially save you 41% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from St. Louis to Las Vegas?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Las Vegas. Price data was last updated on September 29, 2024.

Travelers seeking maximum savings on their St. Louis to Las Vegas flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

Temperature in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated October 2, 2024.
To help decide which airline to fly from St. Louis to Las Vegas, see what other customers have to say about Southwest, Frontier and Spirit Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.2
Very good
5,246 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.3

Overall

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

8.2
Very good
5,246 reviews
8.2
Very good
5,246 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.3

Overall

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

8.0
Very good
9,377 reviews
8.2
Very good
5,246 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.3

Overall

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

8.0
Very good
9,007 reviews
8.2
Very good
5,246 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.3

Overall

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

7.4
Good
9,390 reviews
8.2
Very good
5,246 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.3

Overall

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

7.3
Good
10,000 reviews
8.2
Very good
5,246 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.3

Overall

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

St. Louis to Las Vegas Travel Guide

Las Vegas, with its wild atmosphere and brilliant lights, is a thrilling spot for a vacation. Whether you're visiting with the family or coming with friends, the city's energy and exuberance is sure to draw you in. From the always-busy casinos of the Strip to the classic style of Fremont Street, every inch of the city is designed to provide fun-filled memories to last a lifetime. Best of all? The Vegas attractions all sit just a quick flight from St. Louis.

Every inch of Las Vegas is designed to make an impression. Start your trip off with a bang by jumping off the edge of the Stratosphere casino and falling 829 feet on the heart-pounding Sky Jump. Closer to the south end of the Strip, get a thrill on the roller coaster that runs over the New York New York casino. Want to stay close to the earth? Opt for a boat ride through the canals of the elegant Venetian hotel and casino. When you're ready for a break from gambling, check out the Hispanic Museum of Nevada or go for a hair-raising spin in a stock care around the track of the Las Vegas Motor Speedway.

Check out prices for your trip to Las Vegas today using the Cheapflights smart search engine. Simply enter your dates to see all available times and prices.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from St. Louis to Las Vegas?

    The flight from St. Louis to Las Vegas usually takes less than three hours, so you can get checked into your hotel and ready to see the sites in no time.

  • Which airlines operate flights from St. Louis to Las Vegas?

    Two airlines fly between St. Louis and Las Vegas. Southwest Airlines operates the bulk of nonstop flights, and Frontier Airlines also offers direct service between the two cities.

  • How frequent are flights between St. Louis to Las Vegas?

    Airline schedules to Las Vegas vary based on the day of the week, but on most days, you can choose from a minimum of four direct flights from St. Louis.

  • Which airports serve St. Louis to Las Vegas?

    In St. Louis, your flight will depart from the St. Louis Lambert International Airport. If you want to leave your car at home, take the GO BEST airport shuttle or ride the MetroLink light rail from the city to the terminal. Your flight to Vegas arrives at the Las Vegas McCarran International Airport, which lies just a few miles from the iconic Strip.

  • Which direct flight route between St. Louis to Las Vegas is cheapest?

    Of the two airlines that fly the St. Louis to Las Vegas route, Frontier tends to offer lower prices. Before you book, be sure to check baggage fees, as they can add a large amount to the final ticket price.

  • What airports do I use to fly from St. Louis to Las Vegas?

    If you book a flight from St. Louis to Las Vegas, you will be flying from Lambert-St Louis to Harry Reid Intl. Flights to Las Vegas Harry Reid Intl (LAS) from Lambert-St Louis (STL) take 3h 30m for a nonstop flight. There are 2 flights from Lambert-St Louis to Las Vegas per day from 6 airlines.

  • Can I find flights from St. Louis to Las Vegas for under $100 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Las Vegas for under $100. The cheapest flight booked recently is on Frontier for just $92, but on average you can expect to pay $180.

  • Are there nonstop flights from St. Louis to Las Vegas for under $100 on Cheapflights?

    Cheapflights has at least 2 direct flights from St. Louis to Las Vegas under $100. A good price for a nonstop flight from St. Louis to Las Vegas is less than $137.

  • Are there last-minute flights available from St. Louis to Las Vegas for under $200?

    There are currently 7+ open flights from St. Louis to Las Vegas within the next 7 days for less than $200.

  • What days are nonstop flights available from St. Louis to Las Vegas?

    Nonstop flights can be found on the following days: Sunday, Wednesday, Thursday, Saturday.

  • How popular is this St. Louis to Las Vegas flight route?

  • How many flights depart from St. Louis to Las Vegas on average per day?

    Per day, 4 flights depart from St. Louis to Las Vegas on average.
    Morning (6am - Noon) - 25% of flight departures
    Afternoon (Noon - 6pm) - 25% of flight departures
    Evening (6pm - Midnight) - 50% of flight departures

  • How long is the flight from St. Louis to Las Vegas?

    Frontier, Spirit Airlines, and Southwest can get you from St. Louis to Las Vegas in just under 3h 35m. Your travel time can differ by up to 11h 57m. There are 1375 mi between St. Louis and Las Vegas. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from St. Louis to Las Vegas round-trip?

    Cheapflights users have booked flights from St. Louis to Las Vegas round-trip from $92. Other airlines that can offer you cheap pricing are Spirit Airlines, from $205, and Southwest, from $208. Frontier is priced at 60% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Las Vegas one-way?

    The cheapest airlines for a one-way flight from St. Louis to Las Vegas are Frontier ($38), Spirit Airlines ($70), and Southwest ($99).

  • What are the most reliable airlines from St. Louis to Las Vegas?

    Consider Southwest (85%), Frontier (78%) or Spirit Airlines (76%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Las Vegas.

  • What are the cheapest flights from St. Louis to Las Vegas?

    While on average a flight from St. Louis to Las Vegas is generally $195, our data shows the cheapest flight currently is $39. When looking at the most popular route, (Lambert-St Louis - Las Vegas Harry Reid Intl), you can expect to pay $108 for that flight.

  • What does STL to LAS mean?

    Lambert-St Louis Airport is STL and Las Vegas Harry Reid Intl Airport is LAS. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Where are the most common layover locations when flying from St. Louis to Las Vegas?

  • What are some popular things to do or see while on a layover in Denver?

    Most Denver visitors opt to spend their time experiencing Coors Field, 16th Street Mall, and Paramount Theatre. Coors Field, 16th Street Mall and Paramount Theatre are located about 18.4 mi, 18.7 mi, and 18.6 mi, respectively from Denver Intl if you are interested in checking them out. Travelers can book a car rental at Denver Intl for about $58 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for St. Louis to Las Vegas flights?

  • Can I find deals for flights from St. Louis to Las Vegas that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Las Vegas flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Las Vegas with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Las Vegas flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Las Vegas that include hotel bookings?

    Yes. In addition to deals on St. Louis to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Las Vegas.

  • Can I find deals for business class flights from St. Louis to Las Vegas?

    Yes. Cheapflights offers flight deals from St. Louis to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Las Vegas that allow pets onboard?

    Many airlines flying from St. Louis to Las Vegas offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Las Vegas?

    Yes, you can often find last-minute deals on St. Louis to Las Vegas flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Las Vegas flight deals updated?

    The St. Louis to Las Vegas flight deals you see on this page were last updated on 10/2.

  • What is the cheapest month to book a flight from St. Louis to Las Vegas?

    Currently, May is the cheapest month in which you can book a flight from St. Louis to Las Vegas (average of $58). Flying from St. Louis to Las Vegas in January is currently the most expensive (average of $118). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.