$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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAS
Sep 1 — Sep 81
Round-trip
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
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 Lambert-St Louis to Las Vegas Harry Reid Intl are usually found in January or August, booked 31 days in advance, depart on a Monday or Sunday and return on a Friday
Cheap flight deals from St. Louis to Las Vegas
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to Las VegasExplore 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 August 2, 2026.
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 August 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:42 pm
STL
- LAS
1 stop9h 17m
Alaska Airlines
Wed 10/712:08 pm
LAS
- STL
1 stop9h 51m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$137
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:29 am
STL
- LAS
1 stop11h 03m
Alaska Airlines
Fri 9/1811:55 am
LAS
- STL
1 stop10h 04m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sun 9/131:02 pm
STL
- LAS
1 stop23h 44m
Frontier
Wed 9/169:45 am
LAS
- STL
1 stop7h 32m
Frontier
Deal found 7/28![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Wed 9/308:10 pm
STL
- LAS
1 stop14h 18m
Frontier
Sat 10/36:45 am
LAS
- STL
1 stop10h 32m
Frontier
Deal found 7/31![Frontier logo]()
$170
This Trip.com deal was found by Cheapflights users on 7/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:45 pm
STL
- LAS
Nonstop3h 35m
Multiple Airlines
Wed 9/28:02 am
LAS
- STL
1 stop7h 08m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$172
This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:29 am
STL
- LAS
1 stop11h 03m
Multiple Airlines
Fri 9/186:10 am
LAS
- STL
Nonstop3h 17m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$173
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:08 pm
STL
- LAS
1 stop19h 18m
Alaska Airlines
Fri 9/188:02 am
LAS
- STL
1 stop7h 08m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Wed 9/98:10 pm
STL
- LAS
1 stop14h 18m
Frontier
Sat 9/128:44 pm
LAS
- STL
1 stop13h 23m
Frontier
Deal found 7/29![Frontier logo]()
$179
Best flights from St. Louis to Las VegasDiscover carefully curated flight deals from St. Louis to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
Discover carefully curated flight deals from St. Louis to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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.
Fri 9/185:19 pm
STL
- LAS
1 stop16h 48m
Frontier
Sat 9/1912:59 am
LAS
- STL
1 stop6h 36m
Frontier
Deal found 7/27![Frontier logo]()
$342
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:25 pm
STL
- LAS
2 stops10h 16m
Delta
Fri 10/26:05 am
LAS
- STL
2 stops9h 32m
Delta
Deal found 7/30![Delta logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:19 pm
STL
- LAS
1 stop8h 22m
Alaska Airlines
Mon 9/217:07 pm
LAS
- STL
2 stops20h 03m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$396
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:00 am
STL
- LAS
2 stops9h 16m
United Airlines
Sat 8/2212:59 am
LAS
- STL
1 stop7h 11m
United Airlines
Deal found 7/28![United Airlines logo]()
$404
This Southwest deal was found by Cheapflights users on 7/27. 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.
Sat 10/176:30 am
STL
- LAS
2 stops7h 00m
Southwest
Thu 10/2211:15 am
LAS
- STL
1 stop5h 45m
Southwest
Deal found 7/27![Southwest logo]()
$404
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:22 pm
STL
- LAS
2 stops10h 18m
Delta
Fri 10/1612:59 am
LAS
- STL
1 stop7h 39m
Delta
Deal found 7/28![Delta logo]()
$393
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:05 pm
STL
- LAS
1 stop7h 34m
United Airlines
Sun 8/236:00 am
LAS
- STL
2 stops12h 46m
United Airlines
Deal found 7/27![United Airlines logo]()
$404
This Southwest deal was found by Cheapflights users on 7/29. 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.
Tue 9/17:00 am
STL
- LAS
2 stops7h 00m
Southwest
Fri 9/411:30 pm
LAS
- STL
1 stop6h 45m
Southwest
Deal found 7/29![Southwest logo]()
$443
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 9/306:29 am
STL
- LAS
2 stops12h 19m
Alaska Airlines
Sun 10/47:00 am
LAS
- STL
2 stops14h 59m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$453
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:00 am
STL
- LAS
2 stops12h 29m
Delta
Sat 9/511:00 am
LAS
- STL
2 stops9h 03m
Delta
Deal found 7/29![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 8/1. 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.
Fri 10/232:22 pm
STL
- LAS
2 stops10h 18m
Delta
Sun 10/2512:59 am
LAS
- STL
1 stop5h 54m
Delta
Deal found 8/1![Delta logo]()
$456
Last-minute flights from St. Louis to Las VegasDiscover last-minute flight deals from St. Louis to Las Vegas. Data last updated August 2, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Las Vegas. Data last updated August 2, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Tue 8/188:00 am
STL
- LAS
Nonstop3h 33m
Frontier
Wed 8/269:04 pm
LAS
- STL
1 stop20h 09m
Frontier
Deal found 7/28![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Sun 8/237:58 pm
STL
- LAS
1 stop13h 11m
Frontier
Wed 8/269:04 pm
LAS
- STL
1 stop20h 09m
Frontier
Deal found 7/29![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:58 pm
STL
- LAS
1 stop13h 11m
Frontier
Sat 8/297:36 am
LAS
- STL
2 stops31h 46m
Frontier
Deal found 7/30![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/247:58 pm
STL
- LAS
1 stop5h 49m
Frontier
Thu 8/276:00 am
LAS
- STL
1 stop11h 13m
Frontier
Deal found 7/28![Frontier logo]()
$193
This Trip.com deal was found by Cheapflights users on 7/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:45 pm
STL
- LAS
Nonstop3h 35m
Multiple Airlines
Wed 9/28:02 am
LAS
- STL
1 stop7h 08m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Thu 8/277:58 pm
STL
- LAS
1 stop5h 49m
Frontier
Thu 9/38:15 am
LAS
- STL
1 stop8h 58m
Frontier
Deal found 7/28![Frontier logo]()
$194
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:45 pm
STL
- LAS
Nonstop3h 35m
Multiple Airlines
Mon 8/3110:30 am
LAS
- STL
1 stop11h 29m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$198
This American Airlines deal was found by Cheapflights users on 7/31. 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 8/295:13 pm
STL
- LAS
1 stop7h 54m
American Airlines
Tue 9/111:50 pm
LAS
- STL
1 stop6h 34m
American Airlines
Deal found 7/31![American Airlines logo]()
$187
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:45 pm
STL
- LAS
Nonstop3h 35m
Multiple Airlines
Sat 9/58:02 am
LAS
- STL
1 stop7h 08m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$188
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:36 pm
STL
- LAS
1 stop17h 11m
Alaska Airlines
Wed 9/28:02 am
LAS
- STL
1 stop7h 08m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$157
One-way flights from St. Louis to Las VegasSearch for one-way flight options from St. Louis to Las Vegas. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
Search for one-way flight options from St. Louis to Las Vegas. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:02 am
STL
- LAS
1 stop9h 58m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Wed 9/168:10 pm
STL
- LAS
1 stop14h 18m
Frontier
Deal found 7/29![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Mon 10/268:10 pm
STL
- LAS
1 stop29h 21m
Frontier
Deal found 7/29![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/288:10 pm
STL
- LAS
1 stop19h 57m
Frontier
Deal found 7/31![Frontier logo]()
$84
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:35 am
STL
- LAS
1 stop10h 53m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:10 pm
STL
- LAS
1 stop19h 57m
Frontier
Deal found 8/1![Frontier logo]()
$91
This Delta deal was found by Cheapflights users on 7/31. 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 9/306:55 pm
STL
- LAS
1 stop6h 40m
Delta
Deal found 7/31![Delta logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Wed 9/308:10 pm
STL
- LAS
2 stops29h 18m
Frontier
Deal found 7/31![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:10 pm
STL
- LAS
1 stop19h 57m
Frontier
Deal found 7/30![Frontier logo]()
$96
Find 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 August 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $137 (Alaska Airlines) |
One-way from | $69 (Alaska Airlines) |
Popular in | June |
Cheapest in | January |
Average price | $270 |
Good round-trip deal | $285 or less |
Good one-way deal | $169 or less |
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 August 2, 2026.
Use the filters below to find and compare flights from St. Louis to Las Vegas that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Fri 9/18
5:19 pm-8:07 am
1 stop16h 48m
Las Vegas Harry Reid Intl
Sat 9/19
12:59 am-9:35 am
1 stop6h 36m
$342
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Mon 9/28
2:25 pm-10:41 pm
2 stops10h 16m
Las Vegas Harry Reid Intl
Fri 10/2
6:05 am-5:37 pm
2 stops9h 32m
$371
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Thu 10/15
2:22 pm-10:40 pm
2 stops10h 18m
Las Vegas Harry Reid Intl
Fri 10/16
12:59 am-10:38 am
1 stop7h 39m
$393
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Thu 9/17
3:19 pm-9:41 pm
1 stop8h 22m
Las Vegas Harry Reid Intl
Mon 9/21
7:07 pm-5:10 pm
2 stops20h 03m
$396
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Fri 8/21
8:00 am-3:16 pm
2 stops9h 16m
Las Vegas Harry Reid Intl
Sat 8/22
12:59 am-10:10 am
1 stop7h 11m
$404
Quickest round-trip
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Sat 10/17
6:30 am-11:30 am
2 stops7h 00m
Las Vegas Harry Reid Intl
Thu 10/22
11:15 am-7:00 pm
1 stop5h 45m
$404
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Sat 8/22
1:05 pm-6:39 pm
1 stop7h 34m
Las Vegas Harry Reid Intl
Sun 8/23
6:00 am-8:46 pm
2 stops12h 46m
$404
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Sat 8/29
8:00 am-6:29 pm
2 stops12h 29m
Las Vegas Harry Reid Intl
Sat 9/5
11:00 am-10:03 pm
2 stops9h 03m
$429
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Tue 9/1
7:00 am-12:00 pm
2 stops7h 00m
Las Vegas Harry Reid Intl
Fri 9/4
11:30 pm-8:15 am
1 stop6h 45m
$443
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Wed 9/30
6:29 am-4:48 pm
2 stops12h 19m
Las Vegas Harry Reid Intl
Sun 10/4
7:00 am-11:59 pm
2 stops14h 59m
$453
Showing 1-10 of 22 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Las Vegas flight deals on Cheapflights vs. FlightHub >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 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 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.
STL-LAS
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
Prices
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How far ahead should I book a flight from St. Louis to Las Vegas?
Booking 30 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 $253). Flying from St. Louis to Las Vegas in June is currently the most expensive (average of $391). 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 August 2, 2026.
It’s typically best to fly out from St. Louis to Las Vegas in the evening. Doing so could potentially save you 43% 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 July 25, 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. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from St. Louis to Las Vegas delayed?
About 19% of weekly flights between St. Louis and Las Vegas have experienced delays in the past year, with the average delay time being 129 minutes.
What is the most punctual flight time for St. Louis to Las Vegas flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on St. Louis to Las Vegas flights?
Over the last year, Frontier have had the lowest number of delays on this route, with just 15% of flights being delayed.
What’s the top layover airport for flights from St. Louis to Las Vegas?
Share of 1-stop round-trip flights from St. Louis to Las Vegas chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 75% of 1-stop itineraries from St. Louis to Las Vegas on Cheapflights.
What’s the cheapest layover airport for flights from St. Louis to Las Vegas?
Average round-trip fare for 1-stop flights from St. Louis to Las Vegas, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $259.
What’s the fastest layover option from St. Louis to Las Vegas?
Shortest average travel time for 1-stop one-way flights from St. Louis to Las Vegas, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 5h 29m.
Which airport typically offers the quickest layover for flights from St. Louis to Las Vegas?
Average layover duration for 1-stop one-way flights from St. Louis to Las Vegas, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 2h 27m.
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
Our travel experts
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 August 2, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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.
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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.
Traveling to a place near Las Vegas?
Book flights to Las Vegas if you plan to visit one of these locationsParadise
Henderson
Mesquite
North Las Vegas
Kingman
Winchester
Boulder City
Needles
Sunrise Manor
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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 August 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$105 | Average$263 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$121 | Average$290 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$206 | Average$424 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$228 | Average$334 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$234 | Average$418 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$275 | Average$506 | FlexibilityNo cancel fee | On-time63% |