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$69+ 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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAS
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Lambert-St Louis to Las Vegas Harry Reid Intl are usually found in February or January, booked 20 days in advance, depart on a Monday or Sunday 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 January 14, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$118
(Cheapflightsfares)

One-way from

$69
(Frontier)

Popular in

June

Cheapest in

February

Average price

$256

Good round-trip deal

$209 or less

Good one-way deal

$121 or less
Provider with most accurate pricing for Lambert-St Louis-Las Vegas Harry Reid Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Las Vegas Harry Reid Intl flights.
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From Lambert-St Louis to Las Vegas Harry Reid Intl
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One-way flight from Lambert-St Louis to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 9% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Lambert-St Louis to Las Vegas Harry Reid Intl.
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Price to beat on a one-way flight from Lambert-St Louis to Las Vegas Harry Reid Intl.
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Find flight deals from St. Louis to Las Vegas

Cheapest flights from St. Louis to Las Vegas
Explore the most affordable flight options available from St. Louis to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/11. 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.
Thu 3/510:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
Mon 3/96:05 am
LAS
-
STL
Nonstop3h 14m
Frontier
Deal found 1/11$117
This Expedia deal was found by Cheapflights users on 1/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/89:32 pm
STL
-
LAS
Nonstop3h 57m
Frontier
Tue 2/1012:59 am
LAS
-
STL
1 stop10h 59m
Frontier
Deal found 1/11$118
This Kiwi.com deal was found by Cheapflights users on 1/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/142:51 pm
STL
-
LAS
1 stop21h 49m
Frontier
Thu 2/194:10 pm
LAS
-
STL
Nonstop3h 16m
Frontier
Deal found 1/11$122
This Cheapflightsfares deal was found by Cheapflights users on 1/11. 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 2/73:46 pm
STL
-
LAS
1 stop10h 13m
Frontier
Tue 2/1011:03 pm
LAS
-
STL
1 stop21h 24m
Frontier
Deal found 1/11$127
This Cheapflightsfares deal was found by Cheapflights users on 1/12. 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 1/313:46 pm
STL
-
LAS
1 stop10h 13m
Frontier
Mon 2/23:34 pm
LAS
-
STL
Nonstop3h 16m
Frontier
Deal found 1/12$128
This Frontier deal was found by Cheapflights users on 1/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/184:51 pm
STL
-
LAS
1 stop8h 53m
Frontier
Thu 2/264:10 pm
LAS
-
STL
Nonstop3h 16m
Frontier
Deal found 1/11$129
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:59 pm
STL
-
LAS
1 stop26h 07m
Frontier
Thu 3/54:10 pm
LAS
-
STL
Nonstop3h 16m
Frontier
Deal found 1/12$130
This Cheapflightsfares deal was found by Cheapflights users on 1/12. 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.
Thu 3/510:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
Tue 3/1011:59 pm
LAS
-
STL
1 stop29h 03m
Frontier
Deal found 1/12$133
This WAYA deal was found by Cheapflights users on 1/12. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/161:54 pm
STL
-
LAS
1 stop7h 37m
Frontier
Fri 2/204:10 pm
LAS
-
STL
Nonstop3h 16m
Frontier
Deal found 1/12$134
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
Thu 2/2612:59 am
LAS
-
STL
1 stop10h 10m
Frontier
Deal found 1/12$135
This Cheapflightsfares deal was found by Cheapflights users on 1/11. 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.
Sun 3/110:11 pm
STL
-
LAS
Nonstop3h 48m
Frontier
Sat 3/76:05 am
LAS
-
STL
Nonstop3h 14m
Frontier
Deal found 1/11$137

Cheapflights Fare Finder

 
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 2,558,603 searches. Data last updated January 14, 2026.
Use the filters below to find and compare flights from St. Louis to Las Vegas that are best for you.

Fly from

St. Louis

Fly to

Las Vegas

Route

Depart

Return

Price

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 2/26

6:40 pm-11:22 pm

1 stop6h 42m

Las Vegas Harry Reid Intl

Mon 3/2

4:35 pm-12:25 am

1 stop5h 50m

$237

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 6/13

5:20 am-8:49 am

1 stop5h 29m

Las Vegas Harry Reid Intl

Fri 6/19

4:40 pm-11:43 pm

1 stop5h 03m

$267

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 2/22

5:29 pm-11:35 pm

1 stop8h 06m

Las Vegas Harry Reid Intl

Fri 2/27

11:05 am-12:25 am

2 stops11h 20m

$276

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 5/24

6:30 am-12:43 pm

1 stop8h 13m

Las Vegas Harry Reid Intl

Wed 5/27

10:05 am-6:00 pm

1 stop5h 55m

$299

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 4/17

6:45 pm-11:36 pm

1 stop6h 51m

Las Vegas Harry Reid Intl

Sat 4/18

12:50 am-8:30 am

1 stop5h 40m

$299

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 4/10

6:05 pm-9:58 pm

1 stop5h 53m

Las Vegas Harry Reid Intl

Tue 4/14

10:45 am-8:54 pm

1 stop8h 09m

$313

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 2/17

8:50 pm-10:35 pm

Nonstop3h 45m

Las Vegas Harry Reid Intl

Thu 2/19

6:40 pm-11:45 pm

Nonstop3h 05m

$314

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 7/1

4:30 pm-9:59 pm

1 stop7h 29m

Las Vegas Harry Reid Intl

Wed 7/8

10:29 am-11:43 pm

2 stops11h 14m

$318

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 2/15

2:45 pm-7:07 pm

1 stop6h 22m

Las Vegas Harry Reid Intl

Thu 2/19

6:15 am-4:58 pm

2 stops8h 43m

$318

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 5/25

6:49 pm-11:19 pm

1 stop6h 30m

Las Vegas Harry Reid Intl

Wed 5/27

12:30 am-4:35 pm

2 stops14h 05m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 21 results
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Compare providers for flights from St. Louis to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Las Vegas in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
GotogatePrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Las Vegas flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on St. Louis-Las Vegas flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from St. Louis-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Las Vegas flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Las Vegas

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 January 9, 2026.

Booking 20 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, January is the cheapest month in which you can book a flight from St. Louis to Las Vegas (average of $81). Flying from St. Louis to Las Vegas in July is currently the most expensive (average of $195). 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 January 14, 2026.

It’s typically best to fly out from St. Louis to Las Vegas in the evening. Doing so could potentially save you 50% on the flight price compared to flying in the morning, 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 January 10, 2026.

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

The best insider tips for St. Louis to Las Vegas flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Las Vegas trip
Airports
STL

Expect security screening at STL to take 5-10 minutes during off-peak times. Check real-time wait times online before heading to the airport.

Read more about STLBy Taryn White
LAS

For rideshare pickups at LAS, head to the parking garage. Request your ride closer to the garage to avoid long waits.

Read more about LASBy Ramsey Qubein
Our travel experts
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LAS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 January 14, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from St. Louis to Las Vegas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,257 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,257 reviews
Southwest
8.0
Very good
4,257 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,040 reviews
Southwest
8.0
Very good
4,257 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,156 reviews
Southwest
8.0
Very good
4,257 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,118 reviews
Southwest
8.0
Very good
4,257 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,257 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 25m for a nonstop flight. There are 4 flights from Lambert-St Louis to Las Vegas per day from 6 airlines.

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

    Within the past month, 138 users have taken a look at flights from Lambert-St Louis to Las Vegas Harry Reid Intl.

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

    Delta and United Airlines can get you from St. Louis to Las Vegas in just under 5h 29m. Your travel time can differ by up to 1h 13m. There are 1367 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 $100. Other airlines that can offer you cheap pricing are Frontier, from $109, and Delta, from $132. Spirit Airlines is priced at 65% 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 ($54), Spirit Airlines ($89), and American Airlines ($117).

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

    While on average a flight from St. Louis to Las Vegas is generally $281, our data shows the cheapest flight currently is $54. When looking at the most popular route, (Lambert-St Louis - Las Vegas Harry Reid Intl), you can expect to pay $108 for that flight.

  • 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.

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Las Vegas (average of $81). Flying from St. Louis to Las Vegas in July is currently the most expensive (average of $195). 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

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Paradise
Henderson
North Las Vegas
Kingman
Winchester
Primm
Sunrise Manor
Mesquite
Boulder City
Needles

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Top 6 airlines flying from St. Louis to Las Vegas

Discover the top 6 airlines that operate flights from St. Louis to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$103Average$210FlexibilityNo cancel feeOn-time65%
FrontierCheapest$111Average$244FlexibilityNo cancel feeOn-time62%
DeltaCheapest$145Average$287FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$234Average$418FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$234Average$412FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$271Average$477FlexibilityNo cancel feeOn-time63%

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