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

STL — LAS
Jan 31 — Feb 71

The best prices from Lambert-St Louis to Las Vegas Harry Reid Intl are usually found in January or February, booked 21 days in advance, depart on a Sunday or Monday and return on a Saturday

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 2023: compare St. Louis to Las Vegas flight prices with the expected peak season, weather and rainfall in Las Vegas.

STL - LAS

Price

$118 - $280

LAS

Temperature

48.2 - 93.2 °F

LAS

Rainfall

0.1 - 0.8 inches

Popular inJuneHigh demand for flights, 27% potential price rise
Cheapest inJanuaryBest time to find cheap flights, 42% potential price drop
Round-trip from$118From Lambert-St Louis to Las Vegas Harry Reid Intl
One-way from$92One-way flight from Lambert-St Louis to Las Vegas Harry Reid Intl

What is the cheapest day to fly round-trip from St. Louis to Las Vegas?

Users have found that leaving on a Saturday can be a cost-effective option. It’s possible to save up to 47% on your flight compared to booking on days when demand is much higher.

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

Travelers have found it’s best to book a flight 21 days in advance to save up to 15% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 21 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Las Vegas 1-2 weeks in advance for as low as $198, or $235 for flights within the next 24 hours.

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

January can be a great time to fly to Las Vegas from St. Louis with a flight ticket averaging about $204. Cheapflights users have found deals in the month of January for as cheap as $80. The most expensive prices can be found in the month of June.

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

It’s typically best to fly out from St. Louis to Las Vegas in the evening. Doing so could potentially save you 18% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap flights from St. Louis to Las Vegas in January, February 2023

The best prices found for STL to LAS flights for January, February
Feb 20 - Feb 23
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 42m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 10m
$74

Multiple Airlines

Pick Dates

Deal found 1/23

Feb 19 - Feb 23
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 42m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 03m
$76

Spirit Airlines

Pick Dates

Deal found 1/23

Jan 30 - Mar 3
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 27m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 03m
$77

Spirit Airlines

Pick Dates

Deal found 1/23

St. Louis to Las Vegas 2023 flight deals

Cheap flights to Las Vegas from St. Louis found for this year
Mar 5 - Mar 8
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 42m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 11m
$72

Multiple Airlines

Pick Dates

Deal found 1/24

Feb 20 - Feb 23
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 42m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 10m
$74

Multiple Airlines

Pick Dates

Deal found 1/23

Mar 5 - Mar 10
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 42m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 02m
$76

Spirit Airlines

Pick Dates

Deal found 1/24

Cheap Frontier flights from St. Louis to Las Vegas

Feb 5 - Feb 10
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 56m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 13m
$78

Frontier

Pick Dates

Deal found 1/25

Feb 3 - Feb 6
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 56m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 12m
$79

Frontier

Pick Dates

Deal found 1/24

Mar 8 - Mar 14
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 46m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 11m
$80

Frontier

Pick Dates

Deal found 1/25

  • One of the most popular airlines traveling from St. Louis to Las Vegas is Frontier. Flights from Frontier traveling this route typically cost $200.99 RT. This price is typically 39% cheaper than other airlines that offer St. Louis to Las Vegas flights. When booking this route, the cheapest RT price found was $68. Lambert-St Louis Airport is the most common St. Louis airport to take off from when flying to Las Vegas. Las Vegas Harry Reid Intl Airport is the most popular arrival airport in Las Vegas. When flying from St. Louis to Las Vegas, Frontier flights are 6% more popular than any other airline flying that same route.

Cheap Spirit Airlines flights from St. Louis to Las Vegas

Mar 5 - Mar 10
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 42m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 02m
$76

Spirit Airlines

Pick Dates

Deal found 1/24

Feb 5 - Feb 9
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 27m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 03m
$77

Spirit Airlines

Pick Dates

Deal found 1/25

Mar 8 - Mar 11
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 32m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 02m
$96

Spirit Airlines

Pick Dates

Deal found 1/23

  • If you’re traveling from St. Louis to Las Vegas, one of the more common airlines traveling that route is Spirit Airlines. St. Louis to Las Vegas flights are typically 39% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $192.95 RT. The cheapest Spirit Airlines flight found for this route was $89. When traveling from St. Louis to Las Vegas on Spirit Airlines, the most popular airport to depart from is Lambert-St Louis Airport and the most popular airport to arrive at is Las Vegas Harry Reid Intl Airport. When flying from St. Louis to Las Vegas, Spirit Airlines flights are -6% more popular than any other airline flying that same route.

Non-stop flights to Las Vegas from St. Louis

Save time with St. Louis to Las Vegas direct flight deals
Mar 5 - Mar 8
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 42m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 11m
$72

Multiple Airlines

Pick Dates

Deal found 1/24

Feb 20 - Feb 23
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 42m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 10m
$74

Multiple Airlines

Pick Dates

Deal found 1/23

Mar 5 - Mar 10
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 42m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 02m
$76

Spirit Airlines

Pick Dates

Deal found 1/24

Last minute flights from St. Louis to Las Vegas

Late deals on return flights to Las Vegas from St. Louis, departing today and this week
Feb 5 - Feb 9
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 27m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 03m
$77

Spirit Airlines

Pick Dates

Deal found 1/25

Feb 5 - Feb 10
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 56m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 13m
$78

Frontier

Pick Dates

Deal found 1/25

Feb 3 - Feb 6
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 56m
LAS

Las Vegas Harry Reid Intl

STL

Lambert-St Louis

Nonstop

3h 12m
$79

Frontier

Pick Dates

Deal found 1/24

One-way flights to Las Vegas from St. Louis

The cheapest one-way flights from St. Louis to Las Vegas
Feb 6
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 27m
$36

Spirit Airlines

Pick Dates

Deal found 1/23

Feb 5
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 27m
$37

Spirit Airlines

Pick Dates

Deal found 1/23

Feb 5
STL

Lambert-St Louis

LAS

Las Vegas Harry Reid Intl

Nonstop

3h 27m
$38

Spirit Airlines

Pick Dates

Deal found 1/25

Reviews of Airlines Servicing Las Vegas

Spirit Airlines
6.9
Okay
708 reviews

Comfort

6.4

Crew

7.4

Boarding

7.2

Overall

6.9

Entertainment

5.6

Food

5.6

Reviews

1 / 10

Seats are small, hard and don’t recline. Some arm rests are stationary. Flight took longer on Spirit than other airlines. Baggage claim was ridiculous slow. Took over an hour to get bags in Dallas and Las Vegas. Not worth the small savings! I’ll fly SWA or some other airline.

Spirit Airlines
6.9
Okay
708 reviews
Spirit Airlines
6.9
Okay
708 reviews

Comfort

6.4

Crew

7.4

Boarding

7.2

Overall

6.9

Entertainment

5.6

Food

5.6

Reviews

1 / 10

Seats are small, hard and don’t recline. Some arm rests are stationary. Flight took longer on Spirit than other airlines. Baggage claim was ridiculous slow. Took over an hour to get bags in Dallas and Las Vegas. Not worth the small savings! I’ll fly SWA or some other airline.

Frontier
6.1
Okay
536 reviews
Spirit Airlines
6.9
Okay
708 reviews

Comfort

6.4

Crew

7.4

Boarding

7.2

Overall

6.9

Entertainment

5.6

Food

5.6

Reviews

1 / 10

Seats are small, hard and don’t recline. Some arm rests are stationary. Flight took longer on Spirit than other airlines. Baggage claim was ridiculous slow. Took over an hour to get bags in Dallas and Las Vegas. Not worth the small savings! I’ll fly SWA or some other airline.

Related info for your journey

Useful info, stats and facts about St. Louis to Las Vegas flights.

Las Vegas, with its wild atmosphere and brilliant lights, is a thrilling spot for a vacation. Whether you're visiting with the family or coming with friends, the city's energy and exuberance is sure to draw you in. From the always-busy casinos of the Strip to the classic style of Fremont Street, every inch of the city is designed to provide fun-filled memories to last a lifetime. Best of all? The Vegas attractions all sit just a quick flight from St. Louis.

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

The flight from St. Louis to Las Vegas usually takes less than three hours, so you can get checked into your hotel and ready to see the sites in no time.

Which airlines operate flights from St. Louis to Las Vegas?

Two airlines fly between St. Louis and Las Vegas. Southwest Airlines operates the bulk of nonstop flights, and Frontier Airlines also offers direct service between the two cities.

How frequent are flights between St. Louis to Las Vegas?

Airline schedules to Las Vegas vary based on the day of the week, but on most days, you can choose from a minimum of four direct flights from St. Louis.

Which airports serve St. Louis to Las Vegas?

In St. Louis, your flight will depart from the St. Louis Lambert International Airport. If you want to leave your car at home, take the GO BEST airport shuttle or ride the MetroLink light rail from the city to the terminal. Your flight to Vegas arrives at the Las Vegas McCarran International Airport, which lies just a few miles from the iconic Strip.

Which direct flight route between St. Louis to Las Vegas is cheapest?

Of the two airlines that fly the St. Louis to Las Vegas route, Frontier tends to offer lower prices. Before you book, be sure to check baggage fees, as they can add a large amount to the final ticket price. Every inch of Las Vegas is designed to make an impression. Start your trip off with a bang by jumping off the edge of the Stratosphere casino and falling 829 feet on the heart-pounding Sky Jump. Closer to the south end of the Strip, get a thrill on the roller coaster that runs over the New York New York casino. Want to stay close to the earth? Opt for a boat ride through the canals of the elegant Venetian hotel and casino. When you're ready for a break from gambling, check out the Hispanic Museum of Nevada or go for a hair-raising spin in a stock care around the track of the Las Vegas Motor Speedway. Check out prices for your trip to Las Vegas today using the Cheapflights smart search engine. Simply enter your dates to see all available times and prices.

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 Harry Reid Intl. Flights to Las Vegas Harry Reid Intl (LAS) from Lambert-St Louis (STL) take 3h 25m for a nonstop flight. There are 6 flights from Lambert-St Louis to Las Vegas per day from 10 airlines.

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

Frontier, Spirit Airlines, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

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 Multiple Airlines for just $72, but on average you can expect to pay $86.

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 $86.

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?

Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Thursday, Saturday.

How popular is this St. Louis to Las Vegas flight route?

Within the past month, 247 users have taken a look at flights from Lambert-St Louis to Las Vegas Harry Reid Intl.

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

Per day, 5 flights depart from St. Louis to Las Vegas on average.
Morning (6am - Noon) - 20% of flight departures
Afternoon (Noon - 6pm) - 60% of flight departures
Evening (6pm - Midnight) - 20% of flight departures

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

Spirit Airlines and Frontier can get you from St. Louis to Las Vegas in just under 3h 42m. Your travel time will be generally consistent. There are 1375 mi between St. Louis and Las Vegas. Generally, flights for this route are nonstop.

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

Cheapflights users have booked flights from St. Louis to Las Vegas round-trip from $76. Another airline that can offer you cheap pricing is Frontier. Spirit Airlines is priced at 62% lower than the current average price of a flight leaving 3 months from now.

What are the most popular airlines that fly from St. Louis to Las Vegas?

Consider American Airlines, Alaska Airlines or Delta when booking your flight. These represent the most popular airlines when flying from St. Louis to Las Vegas.

What are the most reliable airlines from St. Louis to Las Vegas?

Consider Southwest (71%), Spirit Airlines (71%) or Frontier (54%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Las Vegas.

What are the cheapest flights from St. Louis to Las Vegas?

While on average a flight from St. Louis to Las Vegas is generally $701, our data shows the cheapest flight currently is $39. When looking at the most popular route, (Lambert-St Louis - Las Vegas Harry Reid Intl), you can expect to pay $77 for that flight.

Alternative routes for St. Louis to Las Vegas

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

Top 9 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.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$14Average$22FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
Spirit AirlinesCheapest$68Average$201FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
FrontierCheapest$89Average$193FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
Allegiant AirCheapest$112Average$196FlexibilityNo cancel feeOn-time88%COVID-19 safety
Search Allegiant Air flights
United AirlinesCheapest$198Average$476FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
Sun Country AirCheapest$202Average$307FlexibilityNo cancel feeOn-time83%COVID-19 safety
Search Sun Country Air flights
American AirlinesCheapest$255Average$496FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapest$256Average$472FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
Alaska AirlinesCheapest$458Average$559FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search Alaska Airlines flights

Hourly flight availability from St. Louis to Las Vegas

See what time of day planes typically take off from St. Louis to Las Vegas
28%of flight departuresEarly morningMidnight to 6 am
17%of flight departuresMorning6 am to noon
42%of flight departuresAfternoonNoon to 6 pm
13%of flight departuresEvening6 pm to midnight
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
Sunday1daily flight
Monday8daily flights
Tuesday8daily flights
Wednesday8daily flights
Thursday9daily flights
Friday8daily flights
Saturday1daily flight
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