St. Louis

$48+ Cheap flights from Las Vegas to St. Louis (LAS - STL)

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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — STL
Feb 18 — Feb 251
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Find cheap flights from Las Vegas to St. Louis with Cheapflights

1. Tell us where you want to go
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2. Select your favorite providers
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The best prices from Las Vegas Harry Reid Intl to Lambert-St Louis are usually found in September or April, booked 72 days in advance, depart on a Thursday or Friday and return on a Monday

Cheap flight deals from Las Vegas to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to St. Louis (STL). 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 February 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$96
(Cheapflightsfares)

One-way from

$48
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$255

Good round-trip deal

$168 or less

Good one-way deal

$121 or less
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Lambert-St Louis flights.
From Las Vegas Harry Reid Intl to Lambert-St Louis
One-way flight from Las Vegas Harry Reid Intl to Lambert-St Louis
Highest demand for flights based on searches. 21% potential increase in price ($59 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in February 2025
Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to Lambert-St Louis.
Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Lambert-St Louis.

Find flight deals from Las Vegas to St. Louis

Cheapest flights from Las Vegas to St. Louis
Explore the most affordable flight options available from Las Vegas to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/12. 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 3/612:22 pmLAS - STL
Nonstop3h 23mFrontier
Sun 3/96:38 pmSTL - LAS
Nonstop3h 41mFrontier
Deal found 2/12$96
This Priceline deal was found by Cheapflights users on 2/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/710:30 pmLAS - STL
1 stop8h 39mMultiple Airlines
Sun 3/96:38 pmSTL - LAS
Nonstop3h 41mMultiple Airlines
Deal found 2/12$150
This Delta deal was found by Cheapflights users on 2/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/512:55 amLAS - STL
1 stop8h 04mDelta
Sun 3/97:30 pmSTL - LAS
1 stop6h 13mDelta
Deal found 2/12$277
This Mytrip deal was found by Cheapflights users on 2/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/51:10 amLAS - STL
3 stops13h 32mSpirit Airlines
Sun 3/95:38 pmSTL - LAS
2 stops21h 11mSpirit Airlines
Deal found 2/12$302
This Sun Country Air deal was found by Cheapflights users on 2/13. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2011:59 pmLAS - STL
1 stop9h 35mSun Country Air
Sun 3/236:30 amSTL - LAS
1 stop18h 26mSun Country Air
Deal found 2/13$310
This Alaska Airlines deal was found by Cheapflights users on 2/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/62:12 pmLAS - STL
1 stop7h 47mAlaska Airlines
Sun 3/97:00 amSTL - LAS
2 stops14h 18mAlaska Airlines
Deal found 2/12$368
This American Airlines deal was found by Cheapflights users on 2/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/711:53 pmLAS - STL
1 stop7h 29mAmerican Airlines
Mon 4/146:15 amSTL - LAS
1 stop9h 27mAmerican Airlines
Deal found 2/12$370
This Southwest deal was found by Cheapflights users on 2/13. 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.
Mon 5/195:00 amLAS - STL
Nonstop3h 05mSouthwest
Tue 5/208:55 pmSTL - LAS
Nonstop3h 30mSouthwest
Deal found 2/13$377
This United Airlines deal was found by Cheapflights users on 2/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/216:00 amLAS - STL
1 stop7h 31mUnited Airlines
Sun 3/234:30 pmSTL - LAS
1 stop5h 37mUnited Airlines
Deal found 2/12$423

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

Customize your flight search to find flights from Las Vegas to St. Louis 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 February 13, 2025.

Fly from

Las Vegas

Fly to

St. Louis

Route

Depart

Return

Price

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 3/6

12:22 pm-5:45 pm

Nonstop3h 23m

Lambert-St Louis

Sun 3/9

6:38 pm-8:19 pm

Nonstop3h 41m

$96

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 3/7

10:30 pm-9:09 am

1 stop8h 39m

Lambert-St Louis

Sun 3/9

6:38 pm-8:19 pm

Nonstop3h 41m

$150

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 3/5

12:55 am-10:59 am

1 stop8h 04m

Lambert-St Louis

Sun 3/9

7:30 pm-11:43 pm

1 stop6h 13m

$277

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 3/5

1:10 am-4:42 pm

3 stops13h 32m

Lambert-St Louis

Sun 3/9

5:38 pm-12:49 pm

2 stops21h 11m

$302

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 3/20

11:59 pm-11:34 am

1 stop9h 35m

Lambert-St Louis

Sun 3/23

6:30 am-10:56 pm

1 stop18h 26m

$310

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 3/6

2:12 pm-11:59 pm

1 stop7h 47m

Lambert-St Louis

Sun 3/9

7:00 am-7:18 pm

2 stops14h 18m

$368

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Mon 4/7

11:53 pm-9:22 am

1 stop7h 29m

Lambert-St Louis

Mon 4/14

6:15 am-1:42 pm

1 stop9h 27m

$370

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 4/23

6:30 am-12:50 pm

1 stop4h 20m

Lambert-St Louis

Sat 4/26

8:45 pm-10:15 pm

Nonstop3h 30m

$408

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 3/21

6:00 am-3:31 pm

1 stop7h 31m

Lambert-St Louis

Sun 3/23

4:30 pm-8:07 pm

1 stop5h 37m

$423

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 3/7

12:37 pm-6:00 pm

Nonstop3h 23m

$48

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 18 results
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Compare providers for flights from Las Vegas to St. Louis

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 Las Vegas to St. Louis in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
Trip.comPrice Accuracy1 starTrust 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 Las Vegas-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Las Vegas-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Las Vegas-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Las Vegas-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub 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 Las Vegas-St. Louis 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 Las Vegas to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Las Vegas 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 Las Vegas to St. Louis

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

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

Use this chart to determine the optimal time to book a round-trip flight from Las Vegas to St. Louis. Price data was last updated on February 7, 2025.

To ensure you get the cheapest price possible for a flight from Las Vegas to St. Louis, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Las Vegas to St. Louis (average of $311). Flying from Las Vegas to St. Louis in March is currently the most expensive (average of $356). 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 LAS to STL?

Find hourly flight availability from Las Vegas to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 13, 2025.

One of the essential ways to save on airfare from Las Vegas to St. Louis is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 61% on airfare.