Frontier's UpFront Plus seats offer extra comfort with a guaranteed empty middle seat.
Early check-in helps secure your place onboard, as Frontier often overbooks flights.
Most accurate provider | FlightHub 3 stars |
---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $146 (Kiwi.com) |
One-way from | $56 (Cheapflightsfares) |
Popular in | December |
Cheapest in | April |
Average price | $333 |
Fly from
Fly to
Route
Depart
Return
Price
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Thu 1/9
5:05 pm-9:54 pm
1 stop30h 49m
Las Vegas Harry Reid Intl
Sun 1/12
2:20 pm-7:34 pm
Nonstop3h 14m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Fri 2/7
7:09 pm-11:59 pm
1 stop6h 50m
Las Vegas Harry Reid Intl
Mon 2/10
10:27 pm-2:43 pm
1 stop14h 16m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Sun 2/16
6:00 am-10:53 am
1 stop6h 53m
Las Vegas Harry Reid Intl
Wed 2/19
6:35 am-4:53 pm
1 stop8h 18m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Sat 2/1
9:25 am-12:55 pm
1 stop5h 30m
Las Vegas Harry Reid Intl
Sat 2/8
5:30 am-10:30 am
Nonstop3h 00m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Sun 2/9
7:00 am-2:45 pm
1 stop9h 45m
Las Vegas Harry Reid Intl
Tue 2/11
7:08 pm-11:59 pm
2 stops26h 51m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Sat 1/25
5:30 pm-10:15 pm
1 stop6h 45m
Las Vegas Harry Reid Intl
Mon 1/27
12:59 am-9:55 am
1 stop6h 56m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Mon 2/10
8:31 pm-10:20 pm
Nonstop3h 49m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Thu 2/6
6:00 pm-11:02 pm
1 stop7h 02m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Sat 2/1
5:45 pm-7:35 pm
Nonstop3h 50m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Thu 1/23
6:59 pm-11:35 pm
1 stop6h 36m
Provider | Price Accuracy | Trust Score* |
---|---|---|
Expedia | Price Accuracy1 star | Trust Score*3 stars |
FlightHub | Price Accuracy3 stars | Trust Score*3 stars |
eDreams | Price Accuracy3 stars | Trust Score*3 stars |
Cheapflightsfares | Price Accuracy3 stars | Trust Score*1 star |
Priceline | Price Accuracy2 stars | Trust Score*3 stars |
Kiwi.com | Price Accuracy3 stars | Trust Score*3 stars |
CheapOair | Price Accuracy2 stars | Trust Score*2 stars |
AranGrant | Price Accuracy3 stars | Trust Score*3 stars |
Cheapfaremart | Price Accuracy- | Trust Score*1 star |
Flightnetwork | Price Accuracy- | Trust Score*3 stars |
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Booking 82 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Las Vegas. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, August is the cheapest month in which you can book a flight from St. Louis to Las Vegas (average of $198). Flying from St. Louis to Las Vegas in March is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s typically best to fly out from St. Louis to Las Vegas in the evening. Doing so could potentially save you 39% on the flight price compared to flying in the morning, which is usually more expensive.
Travelers seeking maximum savings on their St. Louis to Las Vegas flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.
If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).
Overall
Crew
Food
Comfort
Entertainment
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Overall
Crew
Food
Comfort
Entertainment
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Overall
Crew
Food
Comfort
Entertainment
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Overall
Crew
Food
Comfort
Entertainment
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Overall
Crew
Food
Comfort
Entertainment
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Overall
Crew
Food
Comfort
Entertainment
Boarding
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
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.
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.
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Frontier | Cheapest$77 | Average$206 | FlexibilityNo cancel fee | On-time62% |
Spirit Airlines | Cheapest$78 | Average$186 | FlexibilityNo cancel fee | On-time65% |
American Airlines | Cheapest$246 | Average$417 | FlexibilityNo cancel fee | On-time71% |
Delta | Cheapest$258 | Average$447 | FlexibilityNo cancel fee | On-timeN/A |
United Airlines | Cheapest$270 | Average$455 | FlexibilityNo cancel fee | On-time69% |
Southwest | Cheapest$275 | Average$440 | FlexibilityNo cancel fee | On-time63% |