$80+ Cheap flights from Las Vegas to St. Louis (LAS - STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — STL
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Las Vegas to St. Louis 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.Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Lambert-St Louis are usually found in December or April, booked 45 days in advance, depart on a Friday or Thursday and return on a Sunday
Cheap flight deals from Las Vegas to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Las Vegas to St. LouisExplore 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 October 30, 2026.
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 October 30, 2026.
This deal was found by Cheapflights users on 10/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:38 am -
1 stop5h 36m
Sat 11/215:15 pm -
Nonstop3h 44m
Deal found 10/25![Frontier logo]()
$121
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 12/38:00 am -
Nonstop3h 07m
Sat 12/57:54 pm -
1 stop5h 56m
Deal found 10/28![Frontier logo]()
$154
This Frontier deal was found by Cheapflights users on 10/27. 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 11/116:45 am -
1 stop6h 38m
Thu 11/121:28 pm -
Nonstop3h 44m
Deal found 10/27![Frontier logo]()
$164
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:30 pm -
2 stops16h 36m
Sat 12/57:54 pm -
2 stops19h 07m
Deal found 10/30![Frontier logo]()
$170
This deal was found by Cheapflights users on 10/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:15 am -
Nonstop3h 18m
Sun 11/81:28 pm -
Nonstop3h 44m
Deal found 10/27![Frontier logo]()
$187
This CheapOair deal was found by Cheapflights users on 10/27. 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.
Fri 11/138:51 pm -
1 stop20h 23m
Sun 11/151:28 pm -
Nonstop3h 44m
Deal found 10/27![Frontier logo]()
$189
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 11/2610:58 am -
Nonstop3h 22m
Thu 12/106:20 pm -
1 stop16h 17m
Deal found 10/28![Frontier logo]()
$192
This Mytrip deal was found by Cheapflights users on 10/29. 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 11/1911:50 am -
1 stop10h 09m
Fri 11/203:04 pm -
1 stop18h 50m
Deal found 10/29![Multiple Airlines logo]()
$199
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 11/197:15 am -
Nonstop3h 18m
Fri 11/203:04 pm -
1 stop18h 50m
Deal found 10/29![Frontier logo]()
$201
Best flights from Las Vegas to St. LouisDiscover carefully curated flight deals from Las Vegas to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Las Vegas to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This deal was found by Cheapflights users on 10/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:38 am -
1 stop5h 36m
Sat 11/215:15 pm -
Nonstop3h 44m
Deal found 10/25![Frontier logo]()
$121
This Southwest deal was found by Cheapflights users on 10/29. 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.
Thu 11/196:05 pm -
Nonstop3h 05m
Sun 11/224:00 pm -
Nonstop3h 35m
Deal found 10/29![Southwest logo]()
$398
This KAYAK deal was found by Cheapflights users on 10/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/258:52 am -
1 stop5h 45m
Thu 1/284:56 pm -
1 stop8h 32m
Deal found 10/29![Delta logo]()
$446
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Fri 11/206:00 am -
1 stop15h 59m
Sun 11/226:00 am -
2 stops17h 07m
Deal found 10/28![Alaska Airlines logo]()
$471
This Super.com deal was found by Cheapflights users on 10/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:58 am -
Nonstop3h 22m
Tue 12/295:37 pm -
Nonstop3h 51m
Deal found 10/25![Frontier logo]()
$370
This Southwest deal was found by Cheapflights users on 10/27. 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 12/2111:35 pm -
1 stop6h 00m
Mon 12/289:55 pm -
Nonstop3h 40m
Deal found 10/27![Southwest logo]()
$427
This KAYAK deal was found by Cheapflights users on 10/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2411:35 pm -
1 stop8h 37m
Thu 1/284:56 pm -
1 stop8h 32m
Deal found 10/29![Delta logo]()
$458
This Southwest deal was found by Cheapflights users on 10/26. 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.
Fri 11/207:45 pm -
Nonstop3h 10m
Sun 11/225:40 am -
Nonstop3h 40m
Deal found 10/26![Southwest logo]()
$457
This Southwest deal was found by Cheapflights users on 10/29. 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 1/255:35 pm -
Nonstop3h 10m
Thu 1/286:45 am -
Nonstop3h 40m
Deal found 10/29![Southwest logo]()
$487
This Southwest deal was found by Cheapflights users on 10/29. 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.
Sun 1/246:50 am -
1 stop6h 20m
Thu 1/287:00 pm -
Nonstop3h 40m
Deal found 10/29![Southwest logo]()
$543
Last-minute flights from Las Vegas to St. LouisDiscover last-minute flight deals from Las Vegas to St. Louis. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Las Vegas to St. Louis. Data last updated October 30, 2026 and is based on user searches.
This deal was found by Cheapflights users on 10/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:15 am -
Nonstop3h 18m
Sun 11/81:28 pm -
Nonstop3h 44m
Deal found 10/27![Frontier logo]()
$187
This Frontier deal was found by Cheapflights users on 10/27. 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 11/116:45 am -
1 stop6h 38m
Thu 11/121:28 pm -
Nonstop3h 44m
Deal found 10/27![Frontier logo]()
$164
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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.
Wed 11/1110:06 pm -
1 stop23h 10m
Mon 11/167:59 pm -
1 stop25h 47m
Deal found 10/27![Frontier logo]()
$226
This CheapOair deal was found by Cheapflights users on 10/27. 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.
Fri 11/138:51 pm -
1 stop20h 23m
Sun 11/151:28 pm -
Nonstop3h 44m
Deal found 10/27![Frontier logo]()
$189
This deal was found by Cheapflights users on 10/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:38 am -
1 stop5h 36m
Sat 11/215:15 pm -
Nonstop3h 44m
Deal found 10/25![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 11/149:37 am -
1 stop7h 37m
Fri 11/203:04 pm -
1 stop10h 48m
Deal found 10/25![Frontier logo]()
$227
This Mytrip deal was found by Cheapflights users on 10/29. 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 11/1911:50 am -
1 stop10h 09m
Fri 11/203:04 pm -
1 stop18h 50m
Deal found 10/29![Multiple Airlines logo]()
$199
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 11/197:15 am -
Nonstop3h 18m
Fri 11/203:04 pm -
1 stop18h 50m
Deal found 10/29![Frontier logo]()
$201
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 11/2610:58 am -
Nonstop3h 22m
Thu 12/106:20 pm -
1 stop16h 17m
Deal found 10/28![Frontier logo]()
$192
One-way flights from Las Vegas to St. LouisSearch for one-way flight options from Las Vegas to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Las Vegas to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Mon 12/75:25 pm -
2 stops39h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$80
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 2/2511:43 am -
Nonstop3h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Tue 12/16:00 am -
2 stops27h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/2110:58 am -
Nonstop3h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Thu 11/197:15 am -
Nonstop3h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Thu 12/38:00 am -
Nonstop3h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$89
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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.
Tue 11/2410:58 am -
Nonstop3h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Tue 11/108:17 am -
2 stops31h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/410:23 am -
2 stops22h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$99
This Mytrip deal was found by Cheapflights users on 10/25. 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 11/116:00 pm -
1 stop15h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Frontier logo]()
$100
Find 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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $121 |
One-way from | $80 (Kiwi.com) |
Popular in | July |
Cheapest in | December |
Average price | $414 |
Good round-trip deal | $285 or less |
Good one-way deal | $251 or less |
Cheapflights Fare Finder
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 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Las Vegas to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Thu 11/12
7:15 am-12:33 pm
Nonstop3h 18m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$80
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Thu 11/12
11:50 am-11:59 pm
1 stop10h 09m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$109
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Sat 11/14
11:38 am-7:14 pm
1 stop5h 36m
Lambert-St Louis
Sat 11/21
5:15 pm-6:59 pm
Nonstop3h 44m
$121
Quickest round-trip
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Wed 11/25
6:10 am-11:05 am
Nonstop2h 55m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$170
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Wed 11/18
4:15 pm-9:20 pm
Nonstop3h 05m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$170
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Thu 11/19
6:05 pm-11:10 pm
Nonstop3h 05m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$170
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Mon 12/14
6:05 pm-11:10 pm
Nonstop3h 05m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$170
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Mon 12/7
6:05 pm-11:10 pm
Nonstop3h 05m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$209
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Wed 1/20
5:35 pm-10:45 pm
Nonstop3h 10m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$209
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Mon 12/21
8:35 pm-1:45 am
Nonstop3h 10m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$209
Showing 1-10 of 22 resultsSorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
LAS-STL
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 Las Vegas to St. Louis
How far ahead should I book a flight from Las Vegas to St. Louis?
To ensure you get the cheapest price possible for a flight from Las Vegas to St. Louis, you should look to book at least 44 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, December is the cheapest month in which you can book a flight from Las Vegas to St. Louis (average of $202). Flying from Las Vegas to St. Louis in July is currently the most expensive (average of $414). 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 October 30, 2026.
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 at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 47% on airfare.
The best insider tips for Las Vegas to St. Louis 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 Las Vegas to St. Louis trip
Our travel experts
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 October 30, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Las Vegas to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Collinsville
Edwardsville
Glencoe
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Top 5 airlines flying from Las Vegas to St. Louis
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$108 | Average$292 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$116 | Average$836 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$156 | Average$375 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$198 | Average$450 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$217 | Average$524 | FlexibilityNo cancel fee | On-time63% |