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$56+ 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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — STL
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from Las Vegas Harry Reid Intl to Lambert-St Louis are usually found in September or June, booked 75 days in advance, depart on a Friday or Thursday 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 December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$108
(Frontier)

One-way from

$56
(Frontier)

Popular in

December

Cheapest in

September

Average price

$358
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Lambert-St Louis flights.
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From Las Vegas Harry Reid Intl to Lambert-St Louis
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One-way flight from Las Vegas Harry Reid Intl to Lambert-St Louis
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High demand for flights, 27% potential price rise
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Best time to find cheap flights, 5% potential price drop
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Average for round-trip flights in December 2024
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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 December 18, 2024.

This Cheapflightsfares deal was found by Cheapflights users on 12/18. 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 12/266:25 amLAS - STL
1 stop23h 48mFrontier
Wed 1/16:49 pmSTL - LAS
1 stop16h 16mFrontier
Deal found 12/18$264
This CheapOair deal was found by Cheapflights users on 12/17. 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.
Mon 12/3012:20 pmLAS - STL
1 stop25h 01mMultiple Airlines
Sat 1/46:49 pmSTL - LAS
1 stop6h 45mMultiple Airlines
Deal found 12/17$401
This American Airlines deal was found by Cheapflights users on 12/17. 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 12/2312:59 amLAS - STL
1 stop7h 46mAmerican Airlines
Tue 12/317:24 amSTL - LAS
1 stop5h 58mAmerican Airlines
Deal found 12/17$408
This Delta deal was found by Cheapflights users on 12/16. 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.
Mon 12/236:25 amLAS - STL
1 stop4h 55mDelta
Tue 12/2411:46 amSTL - LAS
1 stop7h 52mDelta
Deal found 12/16$642
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Mon 12/306:55 pmLAS - STL
2 stops15h 53mUnited Airlines
Sat 1/46:25 amSTL - LAS
1 stop6h 26mUnited Airlines
Deal found 12/17$648
This Southwest deal was found by Cheapflights users on 12/17. 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 12/243:35 pmLAS - STL
Nonstop3h 05mSouthwest
Tue 12/313:15 pmSTL - LAS
1 stop5h 50mSouthwest
Deal found 12/17$703
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 12/168:59 pmLAS - STL
2 stops14h 25mAlaska Airlines
Tue 12/174:08 pmSTL - LAS
2 stops18h 58mAlaska Airlines
Deal found 12/16$908

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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 1/16

8:18 pm-9:16 am

1 stop10h 58m

Lambert-St Louis

Mon 1/20

7:09 pm-11:51 pm

1 stop6h 42m

$108

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 1/30

12:59 am-10:48 am

1 stop7h 49m

Lambert-St Louis

Fri 2/7

6:00 pm-11:02 pm

1 stop7h 02m

$218

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 1/29

12:59 am-9:55 am

1 stop6h 56m

Lambert-St Louis

Tue 2/4

7:00 am-12:48 pm

1 stop7h 48m

$243

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 1/30

5:45 pm-1:53 pm

1 stop18h 08m

Lambert-St Louis

Tue 2/4

2:49 pm-11:14 am

2 stops22h 25m

$260

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Sat 2/22

7:50 am-2:45 pm

1 stop4h 55m

Lambert-St Louis

Sat 2/22

8:45 pm-10:35 pm

Nonstop3h 50m

$269

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Mon 1/13

10:27 pm-2:43 pm

1 stop14h 16m

Lambert-St Louis

Thu 1/16

5:15 pm-12:54 am

2 stops33h 39m

$273

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Mon 2/10

12:55 am-10:54 am

1 stop7h 59m

Lambert-St Louis

Fri 2/14

5:30 pm-11:37 pm

1 stop8h 07m

$353

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 2/14

4:52 pm-10:08 pm

Nonstop3h 16m

$56

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 1/16

12:55 am-10:54 am

1 stop7h 59m

$109

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Tue 1/7

12:59 am-9:55 am

1 stop6h 56m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 14 results
1
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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 December.
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*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
Trip.comPrice Accuracy2 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 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 December 13, 2024.

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 December 18, 2024.

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 in the afternoon could potentially save you up to 26% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Las Vegas to St. Louis. Price data was last updated on December 16, 2024.

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

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated December 18, 2024.
Read reviews from past customers who have flown Southwest, Frontier and American Airlines from Las Vegas to St. Louis. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,554 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,055 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

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

    Booking a flight from Las Vegas Harry Reid Intl (LAS) to Lambert-St Louis (STL) is your only option if you wish to fly from Las Vegas to St. Louis. On a typical day, there are 3 flights from Harry Reid Intl to Lambert-St Louis, all of which are around 3h 05m for a nonstop flight. You can also purchase a plane ticket from 6 airlines when you book a flight from Harry Reid Intl to St. Louis.

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

    Within the past month, 35 users have taken a look at flights from Las Vegas Harry Reid Intl to Lambert-St Louis.

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

    Flying on Frontier is currently your cheapest option to St. Louis, with prices starting at $108. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $218 and $243, respectively. Frontier is priced at 51% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as $56 on Frontier. Other airlines that offer cheap prices include Delta from $109 and United Airlines from $149 one-way.

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

    The cheapest flight price from Las Vegas to St. Louis is $53. On average you can expect to pay $224. The most popular route, (Las Vegas Harry Reid Intl - Lambert-St Louis), can usually be booked for $136.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Las Vegas to St. Louis 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 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.

See more FAQs

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Top 6 airlines flying from Las Vegas to St. Louis

Discover the top 6 airlines that operate flights from Las Vegas to St. Louis. 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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$178FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$83Average$154FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$235Average$417FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$402FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$279Average$426FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$313Average$478FlexibilityNo cancel feeOn-time69%
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