$77+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — STL
Apr 15 — Apr 221
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 March 16, 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 March 16, 2026.
This Super.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/173:45 pm
LAS
- STL
Nonstop3h 25m
Frontier
Sun 4/199:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/12![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/173:45 pm
LAS
- STL
Nonstop3h 25m
Frontier
Sat 4/184:16 pm
STL
- LAS
Nonstop3h 43m
Frontier
Deal found 3/12![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:00 am
LAS
- STL
1 stop10h 32m
Frontier
Sun 4/199:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/13![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/106:05 am
LAS
- STL
Nonstop3h 22m
Frontier
Sun 4/199:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/15![Frontier logo]()
$176
This Trip.com deal was found by Cheapflights users on 3/11. 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 4/1511:35 pm
LAS
- STL
1 stop8h 55m
Frontier
Fri 4/179:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/11![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:35 pm
LAS
- STL
1 stop8h 55m
Frontier
Mon 4/278:17 pm
STL
- LAS
1 stop21h 25m
Frontier
Deal found 3/12![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:35 pm
LAS
- STL
Nonstop3h 25m
Frontier
Mon 4/203:21 pm
STL
- LAS
1 stop8h 11m
Frontier
Deal found 3/12![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 4/97:00 am
LAS
- STL
Nonstop3h 19m
Frontier
Fri 4/179:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/14![Frontier logo]()
$186
This Cheapflightsfares deal was found by Cheapflights users on 3/14. 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 4/97:00 am
LAS
- STL
Nonstop3h 19m
Frontier
Thu 4/169:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/14![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:05 am
LAS
- STL
Nonstop3h 22m
Frontier
Fri 4/178:06 pm
STL
- LAS
1 stop26h 05m
Frontier
Deal found 3/13![Frontier logo]()
$189
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 March 16, 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 March 16, 2026.
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Thu 7/306:00 am
LAS
- STL
1 stop6h 16m
United Airlines
Thu 8/135:00 am
STL
- LAS
1 stop6h 22m
United Airlines
Deal found 3/11![United Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 3/14. 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.
Tue 5/56:00 am
LAS
- STL
2 stops9h 26m
Delta
Thu 5/77:59 pm
STL
- LAS
1 stop5h 44m
Delta
Deal found 3/14![Delta logo]()
$355
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:55 pm
LAS
- STL
Nonstop3h 15m
Southwest
Mon 4/276:00 am
STL
- LAS
Nonstop3h 30m
Southwest
Deal found 3/12![Southwest logo]()
$390
This United Airlines deal was found by Cheapflights users on 3/14. 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 6/2611:30 pm
LAS
- STL
1 stop7h 11m
United Airlines
Sun 6/286:48 pm
STL
- LAS
1 stop7h 11m
United Airlines
Deal found 3/14![United Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 3/15. 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 6/1912:36 am
LAS
- STL
1 stop6h 05m
United Airlines
Sat 6/277:23 pm
STL
- LAS
1 stop7h 23m
United Airlines
Deal found 3/15![United Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 3/11. 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 4/136:35 pm
LAS
- STL
Nonstop3h 15m
Southwest
Wed 4/159:00 pm
STL
- LAS
Nonstop3h 30m
Southwest
Deal found 3/11![Southwest logo]()
$390
This Southwest deal was found by Cheapflights users on 3/11. 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 5/166:40 am
LAS
- STL
Nonstop3h 05m
Southwest
Mon 5/187:20 pm
STL
- LAS
Nonstop3h 35m
Southwest
Deal found 3/11![Southwest logo]()
$403
This United Airlines deal was found by Cheapflights users on 3/11. 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 5/1610:46 am
LAS
- STL
2 stops7h 57m
United Airlines
Mon 5/187:09 pm
STL
- LAS
1 stop6h 50m
United Airlines
Deal found 3/11![United Airlines logo]()
$378
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:00 am
LAS
- STL
2 stops10h 39m
United Airlines
Thu 9/35:10 am
STL
- LAS
2 stops11h 02m
United Airlines
Deal found 3/12![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:00 am
LAS
- STL
2 stops10h 43m
United Airlines
Sun 5/177:09 pm
STL
- LAS
1 stop6h 41m
United Airlines
Deal found 3/16![United Airlines logo]()
$398
Last-minute flights from Las Vegas to St. LouisDiscover last-minute flight deals from Las Vegas to St. Louis. Data last updated March 16, 2026 and is based on user searches.
Discover last-minute flight deals from Las Vegas to St. Louis. Data last updated March 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 4/97:00 am
LAS
- STL
Nonstop3h 19m
Frontier
Fri 4/179:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/14![Frontier logo]()
$186
This Cheapflightsfares deal was found by Cheapflights users on 3/14. 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 4/97:00 am
LAS
- STL
Nonstop3h 19m
Frontier
Thu 4/169:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/14![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/106:05 am
LAS
- STL
Nonstop3h 22m
Frontier
Sun 4/199:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/15![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:05 am
LAS
- STL
Nonstop3h 22m
Frontier
Fri 4/178:06 pm
STL
- LAS
1 stop26h 05m
Frontier
Deal found 3/13![Frontier logo]()
$189
This Trip.com deal was found by Cheapflights users on 3/11. 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 4/1511:35 pm
LAS
- STL
1 stop8h 55m
Frontier
Fri 4/179:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/11![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:35 pm
LAS
- STL
Nonstop3h 25m
Frontier
Mon 4/203:21 pm
STL
- LAS
1 stop8h 11m
Frontier
Deal found 3/12![Frontier logo]()
$184
This Super.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/173:45 pm
LAS
- STL
Nonstop3h 25m
Frontier
Sun 4/199:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/12![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/173:45 pm
LAS
- STL
Nonstop3h 25m
Frontier
Sat 4/184:16 pm
STL
- LAS
Nonstop3h 43m
Frontier
Deal found 3/12![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:00 am
LAS
- STL
1 stop10h 32m
Frontier
Sun 4/199:55 pm
STL
- LAS
Nonstop3h 42m
Frontier
Deal found 3/13![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:35 pm
LAS
- STL
1 stop8h 55m
Frontier
Mon 4/278:17 pm
STL
- LAS
1 stop21h 25m
Frontier
Deal found 3/12![Frontier logo]()
$180
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 March 16, 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 March 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 5/126:45 am
LAS
- STL
1 stop24h 10m
Frontier
Deal found 3/11![Frontier logo]()
$77
This Super.com deal was found by Cheapflights users on 3/11. 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.
Fri 4/106:05 am
LAS
- STL
Nonstop3h 22m
Frontier
Deal found 3/11![Frontier logo]()
$78
This Trip.com deal was found by Cheapflights users on 3/11. 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 5/112:59 am
LAS
- STL
1 stop16h 33m
Frontier
Deal found 3/11![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/812:29 am
LAS
- STL
1 stop16h 54m
Frontier
Deal found 3/13![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 3/11. 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.
Sat 3/286:05 am
LAS
- STL
Nonstop3h 14m
Frontier
Deal found 3/11![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/1712:59 am
LAS
- STL
1 stop16h 33m
Frontier
Deal found 3/11![Frontier logo]()
$88
This Frontier deal was found by Cheapflights users on 3/15. 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 4/163:35 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 3/15![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/159:20 pm
LAS
- STL
1 stop20h 01m
Frontier
Deal found 3/12![Frontier logo]()
$90
This Trip.com deal was found by Cheapflights users on 3/14. 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 4/2211:35 pm
LAS
- STL
1 stop8h 55m
Frontier
Deal found 3/14![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/79:21 pm
LAS
- STL
1 stop10h 27m
Frontier
Deal found 3/11![Frontier logo]()
$96
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 March 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $157 (Super.com) |
One-way from | $77 (Kiwi.com) |
Popular in | January |
Cheapest in | October |
Average price | $278 |
Good round-trip deal | $254 or less |
Good one-way deal | $140 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 March 16, 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 7/30
6:00 am-2:16 pm
1 stop6h 16m
Lambert-St Louis
Thu 8/13
5:00 am-9:22 am
1 stop6h 22m
$293
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 6/26
11:30 pm-8:41 am
1 stop7h 11m
Lambert-St Louis
Sun 6/28
6:48 pm-11:59 pm
1 stop7h 11m
$313
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 6/19
12:36 am-8:41 am
1 stop6h 05m
Lambert-St Louis
Sat 6/27
7:23 pm-12:46 am
1 stop7h 23m
$313
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Tue 5/5
6:00 am-5:26 pm
2 stops9h 26m
Lambert-St Louis
Thu 5/7
7:59 pm-11:43 pm
1 stop5h 44m
$355
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Sat 5/16
10:46 am-8:43 pm
2 stops7h 57m
Lambert-St Louis
Mon 5/18
7:09 pm-11:59 pm
1 stop6h 50m
$378
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Thu 8/27
8:00 am-8:39 pm
2 stops10h 39m
Lambert-St Louis
Thu 9/3
5:10 am-2:12 pm
2 stops11h 02m
$384
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Wed 4/22
2:55 pm-8:10 pm
Nonstop3h 15m
Lambert-St Louis
Mon 4/27
6:00 am-7:30 am
Nonstop3h 30m
$390
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Mon 4/13
6:35 pm-11:50 pm
Nonstop3h 15m
Lambert-St Louis
Wed 4/15
9:00 pm-10:30 pm
Nonstop3h 30m
$390
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Sat 5/16
8:00 am-8:43 pm
2 stops10h 43m
Lambert-St Louis
Sun 5/17
7:09 pm-11:50 pm
1 stop6h 41m
$398
Quickest round-trip
Las VegasSt. Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Sat 5/16
6:40 am-11:45 am
Nonstop3h 05m
Lambert-St Louis
Mon 5/18
7:20 pm-8:55 pm
Nonstop3h 35m
$403
Showing 1-10 of 20 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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | 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
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Airlines
How far ahead should I book a flight from Las Vegas to St. Louis?
Use this chart to determine the optimal time to book a round-trip flight from Las Vegas to St. Louis. Price data was last updated on March 13, 2026.
To ensure you get the cheapest price possible for a flight from Las Vegas to St. Louis, you should look to book at least 29 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, February is the cheapest month in which you can book a flight from Las Vegas to St. Louis (average of $68). Flying from Las Vegas to St. Louis in July is currently the most expensive (average of $192). 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 March 16, 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 58% 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 March 16, 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.
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Complete your trip
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Las Vegas and St. Louis flights
Browse other Las Vegas and St. Louis flight options. Last updated on March 16, 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 March 16, 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 March 16, 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 March 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$89 | Average$207 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$144 | Average$412 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$156 | Average$312 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$216 | Average$356 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$267 | Average$396 | FlexibilityNo cancel fee | On-time63% |