Cheap flights from St. Louis to Las Vegas from $49

Round-trip
1 adult
Economy
From?
To?
Tue 7/5
Tue 7/12

Deals available from 900+ travel sites.

Flight information for St. Louis to Las Vegas
(STL to LAS)

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

Best Price Found

$49

Fastest flight time

3h 38m

Direct flights

Fri

Airports in Las Vegas

2 airports
The best one-way flight to Las Vegas from St. Louis in the past 72 hours is $49. The best round-trip flight deal from St. Louis to Las Vegas found on momondo in the last 72 hours is $132.
The fastest flight from St. Louis to Las Vegas takes 3h 38m
Direct flights go from St. Louis to Las Vegas on Friday. The only airline offering direct flights is Frontier.
There are 2 airports near Las Vegas: Las Vegas Boulder City (BLD), Las Vegas Harry Reid Intl (LAS)

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 cheapest month to fly from St. Louis to Las Vegas?

January

The cheapest time of year to fly to Las Vegas from St. Louis is January. Most expensive is June

What is the cheapest day to depart St. Louis for Las Vegas?

Monday

The cheapest day of the week is typically Monday. The most expensive is typically Friday

When is the cheapest time to fly from St. Louis to Las Vegas?

at noon

St. Louis to Las Vegas flights are approximately 42% more expensive in the morning than at noon

What is the cheapest airline that flies to Las Vegas from St. Louis?

Juneyao Airlines

Allegiant Air, American Airlines, and Frontier are the most popular carriers operating from St. Louis to Las Vegas

What is the cheapest St. Louis to Las Vegas flight route?

Lambert-St Louis - Las Vegas Harry Reid Intl

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

How far in advance should you book St. Louis to Las Vegas flights?

50 days before

The cheapest time to buy a flight from St. Louis to Las Vegas is approximately 50 days to departure

When you’re planning your trip from St. Louis to Las Vegas, the most popular airport-to-airport route is Lambert-St Louis Airport to Las Vegas Harry Reid Intl Airport. You may be looking for an airport near Lambert-St Louis Airport to depart from when traveling to Las Vegas and luckily, there are options! You can try Springfield Capital Airport which is located in Springfield or Marion Williamson County Airport which is located in Marion. The least expensive flight option from St. Louis to Las Vegas will typically be STL — LAS during the month of June with an average price of $122 RT.

Lambert-St Louis Airport (STL) to Las Vegas Harry Reid Intl Airport (LAS)$122
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Springfield Capital Airport (SPI) to Las Vegas Harry Reid Intl Airport (LAS)$418
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Marion Williamson County Airport (MWA) to Las Vegas Harry Reid Intl Airport (LAS)$280
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Easily compare round-trip flights from St. Louis to Las Vegas

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Las Vegas by changing tabs
Frontier
Sep 6
STL4:13 pmLambert-St Louis
3h 38m
LAS7:51 pmLas Vegas Harry Reid Intl
Sep 8
LAS3:40 amLas Vegas Harry Reid Intl
3h 09m
STL6:49 amLambert-St Louis
Multiple Airlines
Aug 16
STL4:13 pmLambert-St Louis
3h 38m
LAS7:51 pmLas Vegas Harry Reid Intl
Aug 20
LAS10:50 amLas Vegas Harry Reid Intl
3h 10m
STL2:00 pmLambert-St Louis
Spirit Airlines
Aug 20
STL5:12 pmLambert-St Louis
3h 25m
LAS8:37 pmLas Vegas Harry Reid Intl
Aug 23
LAS10:50 amLas Vegas Harry Reid Intl
3h 10m
STL2:00 pmLambert-St Louis
Frontier
Sep 11
STL2:11 pmLambert-St Louis
3h 30m
LAS5:41 pmLas Vegas Harry Reid Intl
Sep 21
LAS9:30 pmLas Vegas Harry Reid Intl
3h 13m
STL12:43 amLambert-St Louis
Frontier
Sep 11
STL2:11 pmLambert-St Louis
3h 30m
LAS5:41 pmLas Vegas Harry Reid Intl
Sep 20
LAS9:30 pmLas Vegas Harry Reid Intl
3h 13m
STL12:43 amLambert-St Louis
Frontier
Sep 7
STL2:11 pmLambert-St Louis
3h 30m
LAS5:41 pmLas Vegas Harry Reid Intl
Sep 15
LAS9:30 pmLas Vegas Harry Reid Intl
3h 13m
STL12:43 amLambert-St Louis

Find the cheapest one-way flights from St. Louis to Las Vegas

If you're looking for one-way flights from St. Louis to Las Vegas, view some of our deals below provided by Frontier and Spirit Airlines
Frontier
Sep 6
STL4:13 pmLambert-St Louis
3h 38m
LAS7:51 pmLas Vegas Harry Reid Intl
Spirit Airlines
Jul 30
STL5:25 pmLambert-St Louis
3h 23m
LAS8:48 pmLas Vegas Harry Reid Intl
Frontier
Aug 14
STL4:13 pmLambert-St Louis
3h 38m
LAS7:51 pmLas Vegas Harry Reid Intl

Search last-minute flights to Las Vegas from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to Las Vegas
Frontier
Jul 5
STL4:14 pmLambert-St Louis
3h 39m
LAS7:53 pmLas Vegas Harry Reid Intl
Jul 16
LAS2:45 amLas Vegas Harry Reid Intl
3h 19m
STL6:04 amLambert-St Louis
Multiple Airlines
Jul 10
STL4:13 pmLambert-St Louis
3h 38m
LAS7:51 pmLas Vegas Harry Reid Intl
Jul 12
LAS11:13 amLas Vegas Harry Reid Intl
3h 14m
STL2:27 pmLambert-St Louis
Spirit Airlines
Jul 6
STL5:25 pmLambert-St Louis
3h 23m
LAS8:48 pmLas Vegas Harry Reid Intl
Jul 16
LAS11:13 amLas Vegas Harry Reid Intl
3h 14m
STL2:27 pmLambert-St Louis
Frontier
Jul 5
STL4:14 pmLambert-St Louis
3h 39m
LAS7:53 pmLas Vegas Harry Reid Intl
Jul 9
LAS2:45 amLas Vegas Harry Reid Intl
3h 19m
STL6:04 amLambert-St Louis
Multiple Airlines
Jul 9
STL5:25 pmLambert-St Louis
3h 23m
LAS8:48 pmLas Vegas Harry Reid Intl
Jul 16
LAS2:45 amLas Vegas Harry Reid Intl
3h 19m
STL6:04 amLambert-St Louis
Spirit Airlines
Jul 7
STL5:25 pmLambert-St Louis
3h 23m
LAS8:48 pmLas Vegas Harry Reid Intl
Jul 16
LAS11:13 amLas Vegas Harry Reid Intl
3h 14m
STL2:27 pmLambert-St Louis

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
AirlineRatingFree CancellationPrice
Juneyao AirlinesPriceFrom $13Free CancellationRating
0.0
Search Juneyao Airlines flights
Sun Country AirPriceFrom $61Free CancellationRating
7.3
7.6

Boarding

7.4

Comfort

8.1

Crew

6.3

Entertainment

6.4

Food

Reviews

I paid extra to board zone 1 they called zone 1-3 at the same time so that was pointless. Crew was unfriendly and I felt like an inconvenience. Wasn’t able to go to a gate had to take a shuttle to the gate and that process was a mess. I won’t fly sun country again unless it is an emergency.

1 / 10
Search Sun Country Air flights
Spirit AirlinesPriceFrom $69Free CancellationRating
6.2
6.4

Boarding

5.9

Comfort

7.0

Crew

4.9

Entertainment

5.1

Food

Reviews

We arrived 15 minutes early ,but the luggage take more than 30 minutes to appear.

1 / 10
Search Spirit Airlines flights
FrontierPriceFrom $72Free CancellationRating
6.2
6.4

Boarding

5.8

Comfort

7.0

Crew

4.7

Entertainment

5.0

Food

Reviews

The cabin was HOT. We sat there for over 45 minutes with no air.

1 / 10
Search Frontier flights
American AirlinesPriceFrom $85Free CancellationRating
7.1
7.4

Boarding

7.1

Comfort

8.0

Crew

6.8

Entertainment

6.4

Food

Reviews

The flights were great and everything worked together well!

1 / 10
Search American Airlines flights
DeltaPriceFrom $131Free CancellationRating
7.8
7.9

Boarding

8.0

Comfort

8.3

Crew

7.7

Entertainment

7.3

Food

Reviews

It was so cold on the flight, otherwise okay.

1 / 10
Search Delta flights
Allegiant AirPriceFrom $138Free CancellationRating
7.1
7.4

Boarding

6.9

Comfort

8.2

Crew

5.4

Entertainment

6.2

Food

Reviews

My friend I was going with mom passed away the day before the trip and we had to cancel our trip. Allegiant doesn’t have a refund of any type. Frontier was my return flight and at least offered a partial credit which sucks but beats nothing.

1 / 10
Search Allegiant Air flights
United AirlinesPriceFrom $157Free CancellationRating
7.2
7.5

Boarding

7.1

Comfort

8.0

Crew

6.9

Entertainment

6.5

Food

Reviews

Flight was on time

1 / 10
Search United Airlines flights
Alaska AirlinesPriceFrom $163Free CancellationRating
7.9
8.2

Boarding

7.9

Comfort

8.5

Crew

7.2

Entertainment

7.1

Food

Reviews

There were a lot of people coughing in the plane and they weren’t wearing masks.

1 / 10
Search Alaska Airlines flights
  • Spirit Airlines Flights From St. Louis to Las Vegas

    Spirit Airlines operates around 6 flights from St. Louis to Las Vegas every week. The average price of these flights found in the last 72 hours has been $179, but momondo users have found Spirit Airlines deals from St. Louis to Las Vegas from as low as $69 round-trip. Spirit Airlines has been scored 6.2/10 in 821 reviews.

  • Frontier Flights From St. Louis to Las Vegas

    Another popular option for St. Louis to Las Vegas flights is Frontier (6.2/10, 663 ratings). Frontier flies from St. Louis to Las Vegas around 6 times per week, with deals starting from $72 round-trip and rising to an average price of around $175.


Frontier flights from St. Louis to Las Vegas

Our best Frontier deals on St. Louis to Las Vegas flight tickets
Frontier
Sep 6
STL4:13 pmLambert-St Louis
3h 38m
LAS7:51 pmLas Vegas Harry Reid Intl
Sep 8
LAS3:40 amLas Vegas Harry Reid Intl
3h 09m
STL6:49 amLambert-St Louis
Frontier
Sep 11
STL2:11 pmLambert-St Louis
3h 30m
LAS5:41 pmLas Vegas Harry Reid Intl
Sep 21
LAS9:30 pmLas Vegas Harry Reid Intl
3h 13m
STL12:43 amLambert-St Louis
Frontier
Sep 11
STL2:11 pmLambert-St Louis
3h 30m
LAS5:41 pmLas Vegas Harry Reid Intl
Sep 20
LAS9:30 pmLas Vegas Harry Reid Intl
3h 13m
STL12:43 amLambert-St Louis

Spirit Airlines flights from St. Louis to Las Vegas

Our best Spirit Airlines deals on St. Louis to Las Vegas flight tickets
Spirit Airlines
Aug 20
STL5:12 pmLambert-St Louis
3h 25m
LAS8:37 pmLas Vegas Harry Reid Intl
Aug 23
LAS10:50 amLas Vegas Harry Reid Intl
3h 10m
STL2:00 pmLambert-St Louis
Spirit Airlines
Aug 16
STL5:12 pmLambert-St Louis
3h 25m
LAS8:37 pmLas Vegas Harry Reid Intl
Aug 20
LAS10:50 amLas Vegas Harry Reid Intl
3h 10m
STL2:00 pmLambert-St Louis
Spirit Airlines
Jul 6
STL5:25 pmLambert-St Louis
3h 23m
LAS8:48 pmLas Vegas Harry Reid Intl
Jul 16
LAS11:13 amLas Vegas Harry Reid Intl
3h 14m
STL2:27 pmLambert-St Louis

  • Are airlines flying from Lambert-St Louis to Las Vegas Harry Reid Intl offering flexible cancellation due to COVID-19?

    Due to the global impact of COVID-19, some of our airline partners operating flights from Lambert-St Louis to Las Vegas Harry Reid Intl, such as Spirit Airlines, Frontier, and American Airlines may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.

  • 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 23m is a normal flight duration for this route.



Alternative routes for St. Louis to Las Vegas

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Kansas City to Las Vegas Flights
Fastest flight time2h 51m
Cheapest price$200
St. Louis to Reno Flights
Fastest flight time7h 38m
Cheapest price$210
Kansas City to Reno Flights
Fastest flight time5h 22m
Cheapest price$295

Similar St. Louis to Las Vegas flights

Flexible with your destination? Broaden your search and find flights similar to your St. Louis to Las Vegas route

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