What airlines fly to Las Vegas?

Frontier, Southwest and American Airlines are the top three most popular airlines that fly to Las Vegas from St. Louis according to our data. Frontier is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Las Vegas. Keep in mind that there are 8 different airlines that fly to Las Vegas on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Lambert-St Louis to Las Vegas Harry Reid Intl?

Spirit Airlines, Frontier, and Southwest are the most popular carriers operating from Lambert-St Louis to Las Vegas Harry Reid Intl

How many flights depart from St. Louis to Las Vegas on average per week?

The number of flights available between St. Louis and Las Vegas is 47 per week as of July 2025. The most frequent departure day is Tue, with 21% of weekly flights leaving on this day.

How many flights depart from St. Louis to Las Vegas on average per day?

6 flights are operational daily from St. Louis to Las Vegas as of July 2025. The most popular departure time for this route is 6:00PM, with 36% of flights per day taking off in the evening.

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?

As of July 2025, there are 8 operators available to choose from 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.

$76 Cheap Flights from St. Louis to Las Vegas in 2025

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

Prices are currently low for flights on this route. Typical prices usually range from $175 to $377. The lowest price recently found on this route was $154.

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Find the cheapest flights from St. Louis to Las Vegas

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:59 pm - 11:51 pmSTL-LAS

5h 52m1 stop

12:59 am - 9:18 amLAS-STL

6h 19m1 stop

$154Frontier

Find Deal

dom., ago. 17 - mié., ago. 20

2:34 pm - 4:10 pmSTL-LAS

3h 36mnonstop

10:08 pm - 12:56 pmLAS-STL

12h 48m1 stop

$156Frontier

Find Deal

jue., ago. 21 - jue., ago. 21

2:52 pm - 11:53 amSTL-LAS

23h 01m1 stop

8:20 am - 1:42 pmLAS-STL

3h 22mnonstop

$158Frontier

Find Deal

sáb., ago. 16 - lun., ago. 18

2:52 pm - 11:53 amSTL-LAS

23h 01m1 stop

8:20 am - 1:42 pmLAS-STL

3h 22mnonstop

$163Frontier

Find Deal

sáb., ago. 2 - lun., ago. 4

2:36 pm - 8:52 pmSTL-LAS

8h 16m1 stop

12:59 am - 9:11 amLAS-STL

6h 12m1 stop

$165Frontier

Find Deal

dom., jul. 20 - mar., jul. 22

7:54 pm - 11:34 pmSTL-LAS

5h 40m1 stop

10:35 am - 4:03 pmLAS-STL

3h 28mnonstop

$166Frontier

Find Deal

mar., sep. 2 - sáb., sep. 6

7:54 pm - 11:51 pmSTL-LAS

5h 57m1 stop

6:43 pm - 7:23 pmLAS-STL

22h 40m1 stop

$169Frontier

Find Deal

dom., ago. 3 - mié., ago. 6

11:24 am - 11:29 pmSTL-LAS

14h 05m1 stop

10:43 pm - 1:32 pmLAS-STL

12h 49m1 stop

$195Spirit Airlines

Find Deal

mié., ago. 6 - mié., ago. 13

2:27 pm - 4:03 pmSTL-LAS

3h 36mnonstop

10:43 pm - 1:32 pmLAS-STL

12h 49m1 stop

$209

Find Deal

jue., ago. 7 - mié., ago. 13

3:34 pm - 11:07 pmSTL-LAS

9h 33m1 stop

12:52 am - 10:29 amLAS-STL

7h 37m1 stop

$212Spirit Airlines

Find Deal

sáb., ago. 2 - mar., ago. 5

Frontier flights from St. Louis to Las Vegas

Our best Frontier deals on St. Louis to Las Vegas flight tickets

Frontier

Aug 17

STL7:59 pmLambert-St Louis

5h 52m

1 stop

LAS11:51 pmLas Vegas Harry Reid Intl

Aug 20

LAS12:59 amLas Vegas Harry Reid Intl

6h 19m

1 stop

STL9:18 amLambert-St Louis

$154

Find similar

Frontier

Aug 21

STL2:34 pmLambert-St Louis

3h 36m

LAS4:10 pmLas Vegas Harry Reid Intl

Aug 21

LAS10:08 pmLas Vegas Harry Reid Intl

12h 48m

1 stop

STL12:56 pmLambert-St Louis

$156

Find similar

Frontier

Aug 16

STL2:52 pmLambert-St Louis

23h 01m

1 stop

LAS11:53 amLas Vegas Harry Reid Intl

Aug 18

LAS8:20 amLas Vegas Harry Reid Intl

3h 22m

STL1:42 pmLambert-St Louis

$158

Find similar

Spirit Airlines flights from St. Louis to Las Vegas

Our best Spirit Airlines deals on St. Louis to Las Vegas flight tickets

Spirit Airlines

Jul 16

STL11:24 amLambert-St Louis

14h 05m

1 stop

LAS11:29 pmLas Vegas Harry Reid Intl

Jul 22

LAS12:52 amLas Vegas Harry Reid Intl

7h 37m

1 stop

STL10:29 amLambert-St Louis

$187

Find similar

Spirit Airlines

Aug 6

STL11:24 amLambert-St Louis

14h 05m

1 stop

LAS11:29 pmLas Vegas Harry Reid Intl

Aug 13

LAS10:43 pmLas Vegas Harry Reid Intl

12h 49m

1 stop

STL1:32 pmLambert-St Louis

$195

Find similar

Spirit Airlines

Aug 2

STL3:34 pmLambert-St Louis

9h 33m

1 stop

LAS11:07 pmLas Vegas Harry Reid Intl

Aug 5

LAS12:52 amLas Vegas Harry Reid Intl

7h 37m

1 stop

STL10:29 amLambert-St Louis

$212

Find similar

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

Prices

Airlines

Other information

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 February is, on average, the cheapest month to fly to Las Vegas from St. Louis, with most prices found around $221. The month of August is another great option to travel to Las Vegas, with average flight prices from St. Louis averaging around $229.

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 $237. Flights from St. Louis to Las Vegas on a Wednesday will generally be more expensive and average around $360. 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 $231. Flights to Las Vegas are more costly in the morning, with an average ticket price of $478. Departure times in the morning 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?

You are more likely to see cheaper flights to Las Vegas from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $288 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from St. Louis for as low as $250 on momondo.

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 39% 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 July 2025, prices for St. Louis to Las Vegas flights are approximately 10% 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	$79
Fastest flight time	3h 25m
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 $79. The best round-trip flight deal from St. Louis to Las Vegas found on momondo in the last 72 hours is $154.

The fastest flight from St. Louis to Las Vegas takes 3h 25m

Direct flights go from St. Louis to Las Vegas every day.

There is 1 airport near Las Vegas: Las Vegas Harry Reid Intl (LAS)

Search flight deals

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 36m 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?
As of July 2025, there are 8 operators available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from St. Louis to Las Vegas is Boeing 737-800 Passenger/BBJ2 (winglets), representing 30.31% of all bookings. The subsequent popular models are Airbus A320neo at 24.12%, Boeing 737 MAX 8 at 20.50%, and Boeing 737-700 Passenger/BBJ1 (winglets) at 14.16%.
What is the most popular airline from St. Louis to Las Vegas?
Based on momondo bookings for flights between St. Louis and Las Vegas, the leading airline is Frontier, making up 60% of the total bookings. Other popular airlines include Southwest with 27%, American Airlines with 6%, and Spirit Airlines with 4%.

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
Spirit Airlines	PriceFrom $82	Free Cancellation	Rating 6.3 8,055 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $96	Free Cancellation	Rating 5.9 3,271 reviews	Search Frontier flights
Allegiant Air	PriceFrom $104	Free Cancellation	Rating 7.2 704 reviews	Search Allegiant Air flights
Delta	PriceFrom $178	Free Cancellation	Rating 8.0 7,952 reviews	Search Delta flights
American Airlines	PriceFrom $207	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 8,846 reviews	Search United Airlines flights
Southwest	PriceFrom $286	Free Cancellation	Rating 8.0 4,250 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $342	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights

Southwest Flights From St. Louis to Las Vegas
Southwest operates around 45 flights from St. Louis to Las Vegas every week. The average price of these flights found in the last 72 hours has been $467, but momondo users have found Southwest deals from St. Louis to Las Vegas from as low as $286 round-trip. Southwest has been scored 8.0/10 in 4,250 reviews.
Frontier Flights From St. Louis to Las Vegas
Another popular option for St. Louis to Las Vegas flights is Frontier (5.9/10, 3,271 ratings). Frontier flies from St. Louis to Las Vegas around 2 times per week, with deals starting from $96 round-trip and rising to an average price of around $234.

Laughlin

Mount Charleston

Henderson

Mesquite

North Las Vegas

Paradise

Kingman

Pahrump

Primm

Furnace Creek

Boulder City

Winchester

Sunrise Manor

Needles

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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Cheap flights from St. Louis to Las Vegas from $79

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 7/16. 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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Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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Frontier flights from St. Louis to Las Vegas

Our best Frontier deals on St. Louis to Las Vegas flight tickets

Spirit Airlines flights from St. Louis to Las Vegas

Our best Spirit Airlines deals on St. Louis to Las Vegas flight tickets

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 February is, on average, the cheapest month to fly to Las Vegas from St. Louis, with most prices found around $221. The month of August is another great option to travel to Las Vegas, with average flight prices from St. Louis averaging around $229.

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

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

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?

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 39% 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 July 2025, prices for St. Louis to Las Vegas flights are approximately 10% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Lambert-St Louis to Las Vegas Harry Reid Intl?

Spirit Airlines, Frontier, and Southwest are the most popular carriers operating from Lambert-St Louis to Las Vegas Harry Reid Intl

What airlines fly to Las Vegas?

How many flights depart from St. Louis to Las Vegas on average per day?

6 flights are operational daily from St. Louis to Las Vegas as of July 2025. The most popular departure time for this route is 6:00PM, with 36% of flights per day taking off in the evening.

How many flights depart from St. Louis to Las Vegas on average per week?

The number of flights available between St. Louis and Las Vegas is 47 per week as of July 2025. The most frequent departure day is Tue, with 21% of weekly flights leaving on this day.

When to book flights from St. Louis to Las Vegas

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

Fastest flight time

Direct flights

Airports in Las Vegas

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

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

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?

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

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

Southwest Flights From St. Louis to Las Vegas

Frontier Flights From St. Louis to Las Vegas

Traveling to a place near Las Vegas?

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Las Vegas trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Nevada