$67+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — STL
Sep 1 — Sep 81
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 October or December, booked 87 days in advance, depart on a Friday or Thursday and return on a Monday
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 August 2, 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 August 2, 2026.
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 pm
LAS
- STL
1 stop20h 41m
Alaska Airlines
Tue 9/226:29 am
STL
- LAS
1 stop11h 03m
Alaska Airlines
Deal found 7/29![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.
Thu 9/109:30 am
LAS
- STL
1 stop12h 29m
Alaska Airlines
Tue 9/153:19 pm
STL
- LAS
1 stop9h 58m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$157
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 9/99:45 am
LAS
- STL
1 stop7h 32m
Frontier
Wed 9/168:10 pm
STL
- LAS
1 stop14h 18m
Frontier
Deal found 7/29![Frontier logo]()
$163
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.
Wed 9/239:45 am
LAS
- STL
1 stop7h 32m
Frontier
Mon 9/288:10 pm
STL
- LAS
1 stop14h 18m
Frontier
Deal found 7/30![Frontier logo]()
$165
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.
Wed 9/169:45 am
LAS
- STL
1 stop7h 32m
Frontier
Wed 9/238:10 pm
STL
- LAS
1 stop14h 18m
Frontier
Deal found 8/1![Frontier logo]()
$168
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:25 pm
LAS
- STL
1 stop19h 56m
Alaska Airlines
Mon 9/143:19 pm
STL
- LAS
1 stop9h 58m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$177
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 9/156:15 am
LAS
- STL
Nonstop3h 17m
Multiple Airlines
Tue 9/226:29 am
STL
- LAS
1 stop9h 12m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$178
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.
Thu 10/158:30 am
LAS
- STL
1 stop8h 45m
Frontier
Sun 10/188:10 pm
STL
- LAS
1 stop13h 15m
Frontier
Deal found 7/29![Frontier logo]()
$179
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.
Wed 9/238:02 am
LAS
- STL
1 stop7h 08m
Multiple Airlines
Mon 9/2812:17 pm
STL
- LAS
Nonstop3h 35m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$183
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 9/98:02 am
LAS
- STL
1 stop7h 08m
Alaska Airlines
Wed 9/166:29 am
STL
- LAS
2 stops13h 58m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$185
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 8/246:00 am
LAS
- STL
1 stop11h 13m
Frontier
Mon 10/268:10 pm
STL
- LAS
1 stop15h 20m
Frontier
Deal found 7/28![Frontier logo]()
$186
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 August 2, 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 August 2, 2026.
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:30 am
LAS
- STL
1 stop11h 29m
Alaska Airlines
Wed 9/166:29 am
STL
- LAS
2 stops13h 58m
Alaska Airlines
Deal found 8/1![Alaska Airlines logo]()
$260
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:00 am
LAS
- STL
Nonstop3h 17m
Frontier
Thu 10/85:19 pm
STL
- LAS
Nonstop3h 43m
Frontier
Deal found 8/1![Frontier logo]()
$278
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.
Thu 10/83:30 pm
LAS
- STL
1 stop5h 55m
Southwest
Mon 10/126:00 am
STL
- LAS
1 stop5h 55m
Southwest
Deal found 7/29![Southwest logo]()
$396
This Delta deal was found by Cheapflights users on 8/2. 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 9/166:05 am
LAS
- STL
2 stops9h 32m
Delta
Wed 9/232:25 pm
STL
- LAS
2 stops10h 16m
Delta
Deal found 8/2![Delta logo]()
$419
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:45 am
LAS
- STL
2 stops13h 14m
Alaska Airlines
Tue 9/156:29 am
STL
- LAS
2 stops12h 19m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$370
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.
Sat 9/126:30 am
LAS
- STL
Nonstop3h 10m
Southwest
Sat 9/124:20 pm
STL
- LAS
Nonstop3h 35m
Southwest
Deal found 7/29![Southwest logo]()
$397
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 9/128:02 am
LAS
- STL
1 stop7h 08m
Alaska Airlines
Thu 9/176:29 am
STL
- LAS
2 stops12h 19m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$371
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 9/1210:59 am
LAS
- STL
2 stops10h 17m
Delta
Fri 9/182:25 pm
STL
- LAS
2 stops10h 16m
Delta
Deal found 7/29![Delta logo]()
$439
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:28 pm
LAS
- STL
2 stops21h 42m
Alaska Airlines
Sun 9/276:29 am
STL
- LAS
2 stops13h 58m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$400
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:30 am
LAS
- STL
Nonstop3h 10m
Southwest
Mon 8/315:55 am
STL
- LAS
Nonstop3h 25m
Southwest
Deal found 7/31![Southwest logo]()
$460
Last-minute flights from Las Vegas to St. LouisDiscover last-minute flight deals from Las Vegas to St. Louis. Data last updated August 2, 2026 and is based on user searches.
Discover last-minute flight deals from Las Vegas to St. Louis. Data last updated August 2, 2026 and is based on user searches.
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:25 pm
LAS
- STL
Nonstop3h 25m
Frontier
Thu 8/276:45 pm
STL
- LAS
Nonstop3h 35m
Frontier
Deal found 7/30![Frontier logo]()
$219
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 8/262:53 pm
LAS
- STL
1 stop26h 20m
Frontier
Wed 9/26:45 pm
STL
- LAS
Nonstop3h 35m
Frontier
Deal found 7/29![Frontier logo]()
$216
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:25 pm
LAS
- STL
Nonstop3h 25m
Frontier
Mon 8/316:45 pm
STL
- LAS
Nonstop3h 35m
Frontier
Deal found 7/29![Frontier logo]()
$223
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.
Thu 8/277:07 pm
LAS
- STL
2 stops20h 03m
Alaska Airlines
Sun 8/307:36 pm
STL
- LAS
1 stop17h 11m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$225
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.
Thu 8/276:40 am
LAS
- STL
1 stop8h 42m
Multiple Airlines
Sun 8/306:08 pm
STL
- LAS
1 stop18h 03m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$228
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:25 pm
LAS
- STL
Nonstop3h 25m
Multiple Airlines
Mon 8/316:35 am
STL
- LAS
1 stop10h 53m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$188
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.
Fri 8/2812:25 pm
LAS
- STL
Nonstop3h 25m
Frontier
Mon 8/317:58 pm
STL
- LAS
1 stop19h 49m
Frontier
Deal found 7/31![Frontier logo]()
$202
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 8/2812:25 pm
LAS
- STL
Nonstop3h 25m
Frontier
Fri 9/46:17 pm
STL
- LAS
2 stops28h 55m
Frontier
Deal found 8/1![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 8/3112:25 pm
LAS
- STL
Nonstop3h 25m
Frontier
Mon 8/317:58 pm
STL
- LAS
1 stop5h 49m
Frontier
Deal found 8/2![Frontier logo]()
$227
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 August 2, 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 August 2, 2026.
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:44 pm
LAS
- STL
1 stop20h 33m
Frontier
Deal found 7/31![Frontier logo]()
$67
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:45 am
LAS
- STL
1 stop7h 32m
Frontier
Deal found 7/31![Frontier logo]()
$68
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.
Wed 9/98:02 am
LAS
- STL
1 stop7h 08m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$69
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.
Tue 9/296:29 pm
LAS
- STL
1 stop20h 41m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$74
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.
Tue 9/82:53 pm
LAS
- STL
1 stop26h 24m
Frontier
Deal found 7/30![Frontier logo]()
$81
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 9/99:45 am
LAS
- STL
1 stop7h 32m
Frontier
Deal found 7/31![Frontier logo]()
$82
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 9/298:44 pm
LAS
- STL
1 stop20h 33m
Frontier
Deal found 7/28![Frontier logo]()
$86
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 10/3010:35 am
LAS
- STL
1 stop6h 40m
Frontier
Deal found 8/1![Frontier logo]()
$88
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.
Fri 9/117:02 am
LAS
- STL
1 stop8h 08m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$89
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.
Thu 10/293:32 pm
LAS
- STL
1 stop25h 43m
Frontier
Deal found 7/31![Frontier logo]()
$90
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 August 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $137 (Expedia) |
One-way from | $67 (Trip.com) |
Popular in | July |
Cheapest in | October |
Average price | $226 |
Good round-trip deal | $281 or less |
Good one-way deal | $212 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 2,558,603 searches. Data last updated August 2, 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 - STL
LASSTL
Las Vegas Harry Reid Intl
Thu 9/10
10:30 am-11:59 pm
1 stop11h 29m
Lambert-St Louis
Wed 9/16
6:29 am-6:27 pm
2 stops13h 58m
$260
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Thu 10/1
6:00 am-11:17 am
Nonstop3h 17m
Lambert-St Louis
Thu 10/8
5:19 pm-7:02 pm
Nonstop3h 43m
$278
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Thu 9/10
8:45 am-11:59 pm
2 stops13h 14m
Lambert-St Louis
Tue 9/15
6:29 am-4:48 pm
2 stops12h 19m
$370
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Sat 9/12
8:02 am-5:10 pm
1 stop7h 08m
Lambert-St Louis
Thu 9/17
6:29 am-4:48 pm
2 stops12h 19m
$371
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Thu 10/8
3:30 pm-11:25 pm
1 stop5h 55m
Lambert-St Louis
Mon 10/12
6:00 am-9:55 am
1 stop5h 55m
$396
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Sat 9/12
6:30 am-11:40 am
Nonstop3h 10m
Lambert-St Louis
Sat 9/12
4:20 pm-5:55 pm
Nonstop3h 35m
$397
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Wed 9/23
5:28 pm-5:10 pm
2 stops21h 42m
Lambert-St Louis
Sun 9/27
6:29 am-6:27 pm
2 stops13h 58m
$400
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Wed 9/16
6:05 am-5:37 pm
2 stops9h 32m
Lambert-St Louis
Wed 9/23
2:25 pm-10:41 pm
2 stops10h 16m
$419
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Sat 9/12
10:59 am-11:16 pm
2 stops10h 17m
Lambert-St Louis
Fri 9/18
2:25 pm-10:41 pm
2 stops10h 16m
$439
Quickest round-trip
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 8/28
8:30 am-1:40 pm
Nonstop3h 10m
Lambert-St Louis
Mon 8/31
5:55 am-7:20 am
Nonstop3h 25m
$460
Showing 1-10 of 21 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 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 Accuracy- | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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 70 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, October is the cheapest month in which you can book a flight from Las Vegas to St. Louis (average of $164). Flying from Las Vegas to St. Louis in July is currently the most expensive (average of $433). 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 August 2, 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 August 2, 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.
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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 locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington
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Las Vegas and St. Louis flights
Browse other Las Vegas and St. Louis flight options. Last updated on August 2, 2026.
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Browse through other flights departing from Las Vegas. Flights are based on user searches made on Cheapflights and were last updated on August 2, 2026.
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 2, 2026.
Top 5 airlines flying from Las Vegas to St. Louis
Discover the top 5 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 August 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$85 | Average$242 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$126 | Average$657 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$166 | Average$345 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$198 | Average$412 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$217 | Average$482 | FlexibilityNo cancel fee | On-time63% |