Cheap flights from St Louis to Las Vegas (STL - LAS)

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The best prices from St Louis to Las Vegas are usually found in September or January, booked 56 days in advance, depart on a Sunday or Monday and return on a Thursday

How to find the cheapest flight from
St Louis (STL) to Las Vegas (LAS)

All the information you need to plan the best STL to LAS flight in 2021: compare St Louis to Las Vegas flight prices with the expected peak season, weather and rainfall in Las Vegas.
STL - LAS
Price
$152 - $206
LAS
Temperature
59 - 105.8 °F
LAS
Rainfall
0.1 - 0.9 inches

Popular in

March

High demand for flights, 12% potential price rise

Cheapest in

September

Best time to find cheap flights, 16% potential price drop

Round-trip from

$152

From St Louis to Las Vegas

One-way from

$93

One-way flight from St Louis to Las Vegas

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from St Louis to Las Vegas?

Flights from St Louis to Las Vegas are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Las Vegas.

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

To save on the cost of your flight from St Louis to Las Vegas, book at least 24 days before your planned departure. Booking around this time can save you about 18% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $262 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $304.

What is the cheapest month to fly from St Louis to Las Vegas?

August can be a great time to fly to Las Vegas from St Louis with a flight ticket averaging about $260. Cheapflights users have found deals in the month of August for as cheap as $64. The most expensive prices can be found in the month of December.

When is the cheapest time to fly from St Louis to Las Vegas (STL - LAS)?

Unlike in the morning, when flights are generally more expensive, you can save up to 46% on flights from St Louis to Las Vegas by exploring options for tickets at noon.

Cheap flights from St Louis to Las Vegas in June, July 2021

The best prices found for STL to LAS flights for June, July
30 Jun - 7 Jul
$68pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
STL
Lambert-St Louis
29 Jun - 7 Jul
$71pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
STL
Lambert-St Louis
22 Jun - 28 Jun
$72pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
STL
Lambert-St Louis

St Louis to Las Vegas 2021 flight deals

Cheap flights to Las Vegas from St Louis found for this year
30 Jun - 7 Jul
$68pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
STL
Lambert-St Louis
29 Jun - 7 Jul
$71pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
STL
Lambert-St Louis
22 Jun - 28 Jun
$72pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
STL
Lambert-St Louis

Non-stop flights to Las Vegas from St Louis

Save time with St Louis to Las Vegas direct flight deals
30 Jun - 7 Jul
$68pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
STL
Lambert-St Louis
29 Jun - 7 Jul
$71pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
STL
Lambert-St Louis
22 Jun - 28 Jun
$72pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
STL
Lambert-St Louis

Last minute flights from St Louis to Las Vegas

Late deals on round-trip flights to Las Vegas from St Louis, departing today and this week
16 Jun - 23 Jun
$80pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
STL
Lambert-St Louis
15 Jun - 16 Jun
$83pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Frontier
Non-Stop
STL
Lambert-St Louis
15 Jun - 22 Jun
$85pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
LAS
Las Vegas McCarran
LAS
Las Vegas McCarran
Spirit Airlines
Non-Stop
STL
Lambert-St Louis

One-way flights to Las Vegas from St Louis

The cheapest one-way flights from St Louis to Las Vegas
6:00 am - 6:52 pm
Sun Country Air
1 Stop
14h 52m
STL - LAS
Sun Country Air
$93
Kiwi.com
9:30 am - 10:56 am
Spirit Airlines
Nonstop
3h 26m
STL - LAS
Spirit Airlines
$98
mytrip.com
2:11 pm - 3:41 pm
Frontier
Nonstop
3h 30m
STL - LAS
Frontier
$99
JustFly

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St Louis</span> to <span class="emphasized">Las Vegas</span> flights.

Flight FAQs

From St Louis to Las Vegas

Are flight prices decreasing from St Louis to Las Vegas due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St Louis and Las Vegas for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Which airlines flying from Lambert-St Louis to Las Vegas McCarran have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Lambert-St Louis to Las Vegas McCarran that may be offering flexible cancellation policies are Frontier, Sun Country Air, and American Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

What airports do I use to fly from St. Louis to Las Vegas?

If you book a flight from St. Louis to Las Vegas, you will be flying from Lambert-St Louis to McCarran. Flights to Las Vegas McCarran (LAS) from Lambert-St Louis (STL) take 3h 26m for a nonstop flight. There are 8 flights from Lambert-St Louis to Las Vegas per day from 8 airlines.

Can I find flights from St Louis to Las Vegas for under $100 on Cheapflights?

Yes, there are multiple flights from St Louis to Las Vegas for under $100. The cheapest flight booked recently is on Frontier for just $68, but on average you can expect to pay $85.

Are there nonstop flights from St Louis to Las Vegas for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from St Louis to Las Vegas under $100. A good price for a nonstop flight from St Louis to Las Vegas is less than $85.

Are there last-minute flights available from St Louis to Las Vegas for under $100?

There are currently 20+ open flights from St Louis to Las Vegas within the next 7 days for less than $100.

What days are nonstop flights available from St Louis to Las Vegas?

Days when nonstop flights are available for this flight are: Monday, Tuesday.

How popular is this flight route?

Within the past month, 1,161 users have taken a look at flights from Lambert-St Louis to Las Vegas McCarran.

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

On average, you can expect to see 2 flights from Lambert-St Louis to Las Vegas McCarran a day.
Afternoon (Noon - 6pm) - 100% of flight departures

Does it rain more in St Louis or Las Vegas?

Expected rainfall in St Louis is less than in Las Vegas. You can expect this to be the case over the next 14 days.

Is St Louis weather warmer or cooler than Las Vegas?

Our data indicates that the weather will be 106 °F on average in the month of July. The temperature in Las Vegas is typically hotter than in St Louis. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from St Louis to Las Vegas?

A quick flight from St Louis to Las Vegas can take about 3h 26m. Spirit Airlines provides one of the quickest options available for as low as $81. St Louis and Las Vegas are separated by a distance of 1375 mi. All flights are typically nonstop.

What are the cheapest airlines flying from St Louis to Las Vegas round-trip?

Our cheapest airline available from St Louis to Las Vegas is Frontier. Our recent data shows that you can find tickets from as low as $68 on this airline. An additional option worth looking into is Spirit Airlines, starting at $78. Users have found that Frontier is 62% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from St Louis to Las Vegas one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $31. Users have also found prices from $37 and $76 on Frontier and Spirit Airlines, respectively.

Alternative routes for St Louis to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Las Vegas

Things to know before you go - useful duration and weather info for your trip from St Louis to Las Vegas.
Flight duration
3h 23m
Average temperature for June in Las Vegas
100.4 °F
Avg rainfall for June in Las Vegas
0.1 ″

Airports servicing St. Louis

Airports servicing Las Vegas

Top 7 airlines flying from St Louis to Las Vegas

The chart below displays the airlines Cheapflights users traveling from St Louis to Las Vegas choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Sun Country Air
$58 $149 No cancel fee 83%
Frontier
$77 $189 No cancel fee 62%
United Airlines
$67 $215 No cancel fee 69%
Allegiant Air
$150 $244 No cancel fee 88%
American Airlines
$120 $275 No cancel fee 71%
Delta
$127 $302 No cancel fee N/A
Southwest
$184 $470 No cancel fee 63%

Hourly flight availability from St Louis to Las Vegas

See what time of day planes typically take off from St Louis towards Las Vegas.
Afternoon Noon to 6 PM 54% of STL to LAS departures
Morning 6 AM to noon 30% of STL to LAS departures
Early morning Midnight to 6 AM 16% of STL to LAS departures
Evening 6 PM to midnight 0% of STL to LAS departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from St Louis to Las Vegas
See how many times per day planes take to the skies headed from St Louis to Las Vegas.
Sunday
2 daily flights
Monday
10 daily flights
Tuesday
13 daily flights
Wednesday
13 daily flights
Thursday
9 daily flights
Friday
9 daily flights
Saturday
2 daily flights
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