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Cheap flights from St. Louis to Las Vegas from $37

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Las Vegas departing on 12/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Las Vegas

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Las Vegas that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Las Vegas.

Cheap last minute flights

Planning a quick getaway from St. Louis to Las Vegas? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Las Vegas, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Las Vegas

Find recent round-trip train or bus tickets from St. Louis to Las Vegas.

All round-trip flight deals to Las Vegas

The cheapest plane tickets to Las Vegas found on KAYAK recently.
7:09 pm - 7:16 amSTL-LAS
14h 07m1 stop
8:18 pm - 9:16 amLAS-STL
10h 58m1 stop
$106Frontier
Find Deal
Sat, Jan 18 - Tue, Jan 21
6:49 pm - 11:34 pmSTL-LAS
6h 45m1 stop
8:18 pm - 9:06 amLAS-STL
10h 48m1 stop
$108Frontier
Find Deal
Mon, Jan 6 - Tue, Jan 7
8:31 pm - 10:20 pmSTL-LAS
3h 49mnonstop
4:52 pm - 10:08 pmLAS-STL
3h 16mnonstop
$110Frontier
Find Deal
Mon, Feb 10 - Fri, Feb 14
8:34 pm - 10:29 pmSTL-LAS
3h 55mnonstop
6:35 am - 7:20 pmLAS-STL
10h 45m1 stop
$111Frontier
Find Deal
Mon, Dec 16 - Thu, Dec 19
2:49 pm - 11:59 pmSTL-LAS
11h 10m1 stop
12:20 pm - 5:43 pmLAS-STL
3h 23mnonstop
Thu, Feb 6 - Wed, Feb 12
8:34 pm - 10:29 pmSTL-LAS
3h 55mnonstop
10:27 pm - 3:21 pmLAS-STL
14h 54m1 stop
Sun, Dec 15 - Mon, Dec 16
2:15 pm - 9:50 pmSTL-LAS
9h 35m1 stop
2:34 pm - 11:46 pmLAS-STL
7h 12m1 stop
$217American Airlines
Find Deal
Wed, Jan 29 - Sun, Feb 2
6:59 pm - 11:35 pmSTL-LAS
6h 36m1 stop
12:50 am - 10:54 amLAS-STL
8h 04m1 stop
$276Delta
Find Deal
Fri, Jan 24 - Sat, Jan 25
3:35 pm - 9:02 pmSTL-LAS
7h 27m1 stop
6:10 am - 1:18 pmLAS-STL
5h 08m1 stop
$307Delta
Find Deal
Thu, Jan 9 - Mon, Jan 13
8:30 am - 12:18 pmSTL-LAS
5h 48m1 stop
1:25 pm - 8:41 pmLAS-STL
5h 16m1 stop
$323United Airlines
Find Deal
Sun, Dec 15 - Wed, Dec 18
8:34 pm - 10:29 pmSTL-LAS
3h 55mnonstop
$37Frontier
Find Deal
Mon, Dec 16
6:53 pm - 11:54 pmSTL-LAS
7h 01m1 stop
$53Frontier
Find Deal
Sat, Feb 15
4:53 pm - 9:05 pmSTL-LAS
6h 12m1 stop
$138American Airlines
Find Deal
Tue, Jan 14
5:36 pm - 11:30 pmSTL-LAS
7h 54m1 stop
$157United Airlines
Find Deal
Thu, Feb 13
4:26 pm - 2:17 pmSTL-LAS
23h 51m2 stops
$177Spirit Airlines
Find Deal
Sun, Dec 15
4:26 pm - 12:15 pmSTL-LAS
21h 49m3 stops
$179Spirit Airlines
Find Deal
Tue, Dec 10
5:45 am - 10:11 amSTL-LAS
6h 26m1 stop
$210American Airlines
Find Deal
Tue, Dec 3
1:39 pm - 6:48 pmSTL-LAS
7h 09m1 stop
$234United Airlines
Find Deal
Sun, Dec 15
12:10 pm - 5:00 pmSTL-LAS
6h 50m2 stops
$261Southwest
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Thu, Jan 2
2:40 pm - 6:35 pmSTL-LAS
5h 55m1 stop
$264Southwest
Find Deal
Thu, May 22
10:17 pm - 11:50 pmSTL-LAS
3h 33mnonstop
9:53 pm - 8:13 amLAS-STL
8h 20m1 stop
$183Frontier
Find Deal
Sun, Dec 1 - Thu, Dec 12
10:17 pm - 11:50 pmSTL-LAS
3h 33mnonstop
2:20 pm - 7:34 pmLAS-STL
3h 14mnonstop
$190Frontier
Find Deal
Sun, Dec 1 - Fri, Dec 13
5:21 pm - 1:37 amSTL-LAS
10h 16m1 stop
10:27 pm - 3:21 pmLAS-STL
14h 54m1 stop
$610Spirit Airlines
Find Deal
Sun, Dec 1 - Fri, Dec 6
7:00 am - 6:57 pmSTL-LAS
13h 57m1 stop
12:59 am - 9:50 amLAS-STL
6h 51m1 stop
$714United Airlines
Find Deal
Thu, Nov 28 - Mon, Dec 2
7:00 am - 11:57 pmSTL-LAS
18h 57m2 stops
12:59 am - 9:50 amLAS-STL
6h 51m1 stop
$719United Airlines
Find Deal
Thu, Nov 28 - Mon, Dec 2
5:57 pm - 10:39 pmSTL-LAS
6h 42m1 stop
5:09 pm - 11:54 pmLAS-STL
4h 45m1 stop
$723American Airlines
Find Deal
Mon, Dec 2 - Sat, Dec 14
5:21 pm - 1:37 amSTL-LAS
10h 16m1 stop
5:41 pm - 4:26 pmLAS-STL
20h 45m2 stops
$735Spirit Airlines
Find Deal
Sat, Nov 30 - Mon, Dec 2
5:31 pm - 10:39 pmSTL-LAS
7h 08m1 stop
11:36 pm - 9:46 amLAS-STL
8h 10m1 stop
$763American Airlines
Find Deal
Mon, Dec 2 - Mon, Dec 9
1:00 pm - 2:40 pmSTL-LAS
3h 40mnonstop
10:30 am - 5:15 pmLAS-STL
4h 45m1 stop
$918Southwest
Find Deal
Fri, Nov 29 - Tue, Dec 3
10:50 pm - 12:30 amSTL-LAS
3h 40mnonstop
6:00 pm - 11:10 pmLAS-STL
3h 10mnonstop
$923Southwest
Find Deal
Mon, Dec 2 - Fri, Dec 6
8:31 pm - 10:20 pmSTL-LAS
3h 49mnonstop
4:52 pm - 10:08 pmLAS-STL
3h 16mnonstop
$110Frontier
Find Deal
Mon, Feb 10 - Fri, Feb 14
11:08 pm - 12:57 amSTL-LAS
3h 49mnonstop
4:52 pm - 10:08 pmLAS-STL
3h 16mnonstop
$116Frontier
Find Deal
Mon, Feb 24 - Thu, Feb 27
11:08 pm - 12:57 amSTL-LAS
3h 49mnonstop
4:52 pm - 10:08 pmLAS-STL
3h 16mnonstop
$118Frontier
Find Deal
Mon, Feb 24 - Fri, Feb 28
8:31 pm - 10:20 pmSTL-LAS
3h 49mnonstop
12:20 pm - 5:43 pmLAS-STL
3h 23mnonstop
$123Frontier
Find Deal
Fri, Feb 7 - Wed, Feb 12
11:08 pm - 12:57 amSTL-LAS
3h 49mnonstop
12:03 pm - 5:26 pmLAS-STL
3h 23mnonstop
$125Frontier
Find Deal
Sun, Feb 23 - Tue, Feb 25
11:08 pm - 12:57 amSTL-LAS
3h 49mnonstop
4:52 pm - 10:08 pmLAS-STL
3h 16mnonstop
$136Frontier
Find Deal
Mon, Feb 17 - Fri, Feb 21
8:31 pm - 10:20 pmSTL-LAS
3h 49mnonstop
2:10 pm - 7:31 pmLAS-STL
3h 21mnonstop
$143Frontier
Find Deal
Sun, Jan 26 - Thu, Jan 30
11:08 pm - 12:57 amSTL-LAS
3h 49mnonstop
4:52 pm - 10:08 pmLAS-STL
3h 16mnonstop
$150Frontier
Find Deal
Mon, Feb 17 - Thu, Feb 20
5:45 pm - 7:35 pmSTL-LAS
3h 50mnonstop
3:40 pm - 8:45 pmLAS-STL
3h 05mnonstop
$374Southwest
Find Deal
Sat, Jan 11 - Sun, Jan 12
8:40 pm - 10:30 pmSTL-LAS
3h 50mnonstop
8:40 am - 1:45 pmLAS-STL
3h 05mnonstop
$394Southwest
Find Deal
Mon, Mar 3 - Sat, Mar 8

Frontier flights from St. Louis to Las Vegas

Our best Frontier deals on St. Louis to Las Vegas flight tickets
Frontier
Jan 18
STL7:09 pmLambert-St Louis
14h 07m
1 stop
LAS7:16 amLas Vegas Harry Reid Intl
Jan 21
LAS8:18 pmLas Vegas Harry Reid Intl
10h 58m
1 stop
STL9:16 amLambert-St Louis
Frontier
Jan 6
STL6:49 pmLambert-St Louis
6h 45m
1 stop
LAS11:34 pmLas Vegas Harry Reid Intl
Jan 7
LAS8:18 pmLas Vegas Harry Reid Intl
10h 48m
1 stop
STL9:06 amLambert-St Louis
Frontier
Feb 10
STL8:31 pmLambert-St Louis
3h 49m
LAS10:20 pmLas Vegas Harry Reid Intl
Feb 14
LAS4:52 pmLas Vegas Harry Reid Intl
3h 16m
STL10:08 pmLambert-St Louis

American Airlines flights from St. Louis to Las Vegas

Our best American Airlines deals on St. Louis to Las Vegas flight tickets
American Airlines
Jan 29
STL2:15 pmLambert-St Louis
9h 35m
1 stop
LAS9:50 pmLas Vegas Harry Reid Intl
Feb 2
LAS2:34 pmLas Vegas Harry Reid Intl
7h 12m
1 stop
STL11:46 pmLambert-St Louis
American Airlines
Dec 3
STL5:57 pmLambert-St Louis
5h 58m
1 stop
LAS9:55 pmLas Vegas Harry Reid Intl
Dec 10
LAS5:15 amLas Vegas Harry Reid Intl
5h 41m
1 stop
STL12:56 pmLambert-St Louis
American Airlines
Dec 5
STL7:20 amLambert-St Louis
7h 02m
1 stop
LAS12:22 pmLas Vegas Harry Reid Intl
Dec 5
LAS2:39 pmLas Vegas Harry Reid Intl
7h 20m
1 stop
STL11:59 pmLambert-St Louis

See travel insights to Las Vegas from

How to get the cheapest flight ticket from St. Louis to Las Vegas

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Las Vegas?

What is the cheapest month to fly to Las Vegas?

The month of April is, on average, the cheapest month to fly to Las Vegas from St. Louis, with most prices found around $178. The month of May is another great option to travel to Las Vegas, with average flight prices from St. Louis averaging around $189.

What is the cheapest day to depart on your flight to Las Vegas?

Our data shows that Monday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $180. Flights from St. Louis to Las Vegas on a Thursday will generally be more expensive and average around $290. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Las Vegas?

The cheapest time of day to fly to Las Vegas is in the evening when flights can be purchased for as low as $197. Flights to Las Vegas are more costly at noon, with an average ticket price of $323. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Lambert-St Louis to Las Vegas Harry Reid Intl flight route?

Fly from Lambert-St Louis to Las Vegas Harry Reid Intl for the best Lambert-St Louis - Las Vegas Harry Reid Intl flight prices

How far in advance should I book a flight to Las Vegas?

Most flyers found that booking tickets 38 days in advance of their planned departure date is the best time to get cheap flights to Las Vegas. During this timeframe, flight prices are around $239. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $155.

What cabin class options are available on Lambert-St Louis to Las Vegas Harry Reid Intl flights?

There are 1 cabin classes available to choose from on Lambert-St Louis to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Las Vegas flights?

You could potentially save up to 43% on your flight if you consider stops on a St. Louis to Las Vegas flight.

How have St. Louis to Las Vegas flight prices changed over time?

As of November 2024, prices for St. Louis to Las Vegas flights are approximately 31% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Las Vegas

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Las Vegas according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Las Vegas (STL to LAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Las Vegas

Best Price Found

$37

Fastest flight time

3h 40m

Direct flights

Every day

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from St. Louis in the past 72 hours is $37. The best round-trip flight deal from St. Louis to Las Vegas found on momondo in the last 72 hours is $106.
The fastest flight from St. Louis to Las Vegas takes 3h 40m
Direct flights go from St. Louis to Las Vegas every day.
There is 1 airport near Las Vegas: Las Vegas Harry Reid Intl (LAS)

  • How far is Lambert-St Louis to Las Vegas Harry Reid Intl by plane?

    The straight-line distance from Lambert-St Louis to Las Vegas Harry Reid Intl is 1374.1 mi. 3h 41m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Las Vegas Harry Reid Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Las Vegas Harry Reid Intl Airport were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Las Vegas Harry Reid Intl Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Las Vegas Harry Reid Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The necessary travel and health documents for your Las Vegas Harry Reid Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Las Vegas?

  • What is the most popular airline from St. Louis to Las Vegas?


Best airlines flying from St. Louis to Las Vegas

Compare and see reviews for airlines that fly from St. Louis to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $77Free CancellationRating
6.1
3,523 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $78Free CancellationRating
6.3
8,172 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $263Free CancellationRating
7.4
9,146 reviews
Search United Airlines flights
DeltaPriceFrom $265Free CancellationRating
8.0
8,730 reviews
Search Delta flights
SouthwestPriceFrom $270Free CancellationRating
8.1
4,979 reviews
Search Southwest flights
  • Southwest Flights From St. Louis to Las Vegas

    Southwest operates around 18 flights from St. Louis to Las Vegas every week. The average price of these flights found in the last 72 hours has been $427, but momondo users have found Southwest deals from St. Louis to Las Vegas from as low as $270 round-trip. Southwest has been scored 8.1/10 in 4,979 reviews.


Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Las Vegas?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Las Vegas. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Las Vegas with flexible booking policies on momondo?

All flight searches from St. Louis to Las Vegas on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Las Vegas?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Las Vegas.

I’m not ready to book a flight from St. Louis to Las Vegas right now. Can momondo alert me if prices change?

Price alerts on flights to Las Vegas from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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