LAS - STL

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Everything you should know

Cheapest round-trip
$196
Typical prices: $244-$458
Frontier
Sat 12/15Mon 12/17
LAS - STL • 1 stop
Cheapest non-stop
$251
Typical prices: $243-$450
Frontier
Sun 1/7Wed 1/10
LAS - STL • Non-stop
Nonstop flights
You can fly direct with Southwest and Frontier. Average duration is 3h 07m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 51% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $252 (round-trip)
Shortest trip • 5h 32m (one-way)
Insights
Insights
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We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Las Vegas to St. Louis

Tue, Dec 15 - Thu, Dec 17
Frontier Logo
11:43 pm - 11:17 amLAS  Las Vegas Harry Reid Intl-STL Lambert-St Louis
9h 34m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
5:45 pm - 7:36 pmSTL  Lambert-St Louis-LAS Las Vegas Harry Reid Intl
3h 51mnonstop
$196Frontier
Wed, Dec 2 - Wed, Dec 9
Frontier Logo
6:14 pm - 11:17 amLAS  Las Vegas Harry Reid Intl-STL Lambert-St Louis
39h 03m2 stops Houston George Bush Intcntl Atlanta Hartsfield-Jackson
Frontier Logo
12:02 pm - 8:27 pmSTL  Lambert-St Louis-LAS Las Vegas Harry Reid Intl
10h 25m1 stop Atlanta Hartsfield-Jackson
$198Frontier
Sat, Dec 5 - Sat, Dec 12
Multiple Airlines Logo
6:00 am - 4:40 pmLAS  Las Vegas Harry Reid Intl-STL Lambert-St Louis
8h 40m1 stop Seattle/Tacoma Intl
Multiple Airlines Logo
7:54 pm - 11:50 pmSTL  Lambert-St Louis-LAS Las Vegas Harry Reid Intl
5h 56m1 stop Denver Intl
$315Multiple Airlines
Sat, Feb 20 - Sat, Feb 27
Multiple Airlines Logo
6:00 am - 7:36 pmLAS  Las Vegas Harry Reid Intl-STL Lambert-St Louis
11h 36m2 stops San Diego Dallas/Fort Worth
Multiple Airlines Logo
5:59 pm - 7:49 pmSTL  Lambert-St Louis-LAS Las Vegas Harry Reid Intl
3h 50mnonstop
$374Multiple Airlines
Sun, Dec 20 - Thu, Dec 24
American Airlines Logo
12:26 am - 8:29 amLAS  Las Vegas Harry Reid Intl-STL Lambert-St Louis
6h 03m1 stop Chicago O'Hare Intl
American Airlines Logo
2:50 pm - 8:00 pmSTL  Lambert-St Louis-LAS Las Vegas Harry Reid Intl
7h 10m1 stop Dallas/Fort Worth
$377American Airlines
Tue, Feb 23 - Mon, Mar 1
American Airlines Logo
7:39 am - 5:19 pmLAS  Las Vegas Harry Reid Intl-STL Lambert-St Louis
7h 40m1 stop Chicago O'Hare Intl
American Airlines Logo
2:21 pm - 10:10 pmSTL  Lambert-St Louis-LAS Las Vegas Harry Reid Intl
9h 49m1 stop Chicago O'Hare Intl
$377American Airlines
Wed, Dec 2 - Wed, Dec 9
Southwest Logo
4:15 pm - 9:20 pmLAS  Las Vegas Harry Reid Intl-STL Lambert-St Louis
3h 05mnonstop
Southwest Logo
12:40 pm - 3:30 pmSTL  Lambert-St Louis-LAS Las Vegas Harry Reid Intl
4h 50m1 stop Kansas City
$383Southwest
Tue, Jan 5 - Sat, Jan 9
Southwest Logo
6:05 pm - 11:10 pmLAS  Las Vegas Harry Reid Intl-STL Lambert-St Louis
3h 05mnonstop
Southwest Logo
10:35 am - 3:45 pmSTL  Lambert-St Louis-LAS Las Vegas Harry Reid Intl
7h 10m1 stop Cleveland Hopkins Intl
$387Southwest
Sat, Dec 5 - Sat, Dec 12
Delta Logo
6:30 am - 2:44 pmLAS  Las Vegas Harry Reid Intl-STL Lambert-St Louis
6h 14m1 stop Minneapolis St Paul
Delta Logo
7:08 am - 7:05 pmSTL  Lambert-St Louis-LAS Las Vegas Harry Reid Intl
13h 57m2 stops Salt Lake City Seattle/Tacoma Intl
$434Delta
Mon, Apr 5 - Fri, Apr 9
Delta Logo
5:30 pm - 12:36 amLAS  Las Vegas Harry Reid Intl-STL Lambert-St Louis
5h 06m1 stop Salt Lake City
Delta Logo
7:30 am - 12:08 pmSTL  Lambert-St Louis-LAS Las Vegas Harry Reid Intl
6h 38m1 stop Salt Lake City
$529Delta
Booking Insights

Price, demand and travel trends for Las Vegas to St. Louis flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Las Vegas to St. Louis?

Round-trip flights from Las Vegas to St. Louis typically range from $244 to $458. The lowest price found in the past 5 days was $196, on Frontier.

What's the cheapest day of the week to fly from Las Vegas to St. Louis?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Las Vegas to St. Louis. It’s 11% cheaper than the average day, while Saturday is the most expensive, with prices 41% higher.

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

•December is the cheapest month to fly from Las Vegas to St. Louis at $232 round-trip.
•October ($458) and July ($390) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 97% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Las Vegas to St. Louis are cheapest 4 weeks before departure. Booking in this window typically costs about 51% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Las Vegas to St. Louis

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Harriet Baskas

Harriet Baskas

Expert on LAS

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Key details for Las Vegas to St. Louis flights

Low season

January

Cheapest flight

$91
Beat the crowds with an average 36% drop in travelers.
The most popular month to fly with an average 74% increase in travelers.
One-way flight from Las Vegas to St. Louis

When to book flights from Las Vegas to St. Louis

Are your dates flexible? Find out the best times to travel from Las Vegas to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Las Vegas to St. Louis flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Las Vegas to St. Louis?

    These are the earliest and latest flight times available from Las Vegas to St. Louis:

    • Earliest: departs at 5:00 am and lands at 8:07 am
    • Latest: departs at 8:55 pm and lands at 12:02 am.

    The flight takes about 3h 07m.

  • What cabin classes can I book on flights from Las Vegas to St. Louis?

    Two cabin classes are available on flights from Las Vegas to St. Louis:

    • Economy Class
    • First Class

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

    A nonstop flight from Las Vegas to St. Louis takes 3h 07m, covering 1,367 miles.

  • Do I need a passport to fly from Las Vegas to St. Louis?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Las Vegas to St. Louis flight?

    Round-trip flights from Las Vegas to St. Louis range from $244 to $458, with an average of $319 over the past 12 months. Anything below $244 counts as a good deal.

  • How expensive are last-minute Las Vegas to St. Louis flights?

    Last-minute fares on this route (booked within two weeks of departure) run 46% above the $319 route average. Book 4 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Las Vegas to St. Louis?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $252 round-trip via Chicago O'Hare Intl (ORD), compared to $315 for nonstop.

  • What is the standard checked-bag allowance on flights from Las Vegas to St. Louis?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Las Vegas to St. Louis?

    The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest and American Airlines. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

  • How are flight departures from Las Vegas to St. Louis spread across the day?

    Morning is the busiest departure period on Las Vegas to St. Louis flights, with 51% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 16%, and night flights for 0%.

  • How are flight prices from Las Vegas to St. Louis looking right now?

    One-way fares from Las Vegas to St. Louis are currently lower than usual. Average one-way flight prices are about $188, which is 6% below the typical average for this route.

  • What car rental options are available at Lambert-St Louis Airport (STL)?

    Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates averaging $77 for economy cars. Top options include:

    • Hertz
    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Payless

  • Which airports can I use when flying from Las Vegas to St. Louis?

    Flights from Las Vegas to St. Louis usually depart from Las Vegas Harry Reid Intl (LAS) and arrive at Lambert-St Louis (STL).

  • Which airports do connecting flights from Las Vegas to St. Louis pass through?

    One-stop flights from Las Vegas to St. Louis most commonly connect through:

    • Denver Intl (DEN) - 33% of one-stop connections
    • Salt Lake City (SLC) - 19% of one-stop connections
    • Dallas/Fort Worth (DFW) - 11% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 11% of one-stop connections

  • Can I save money by using flexible dates for flights from Las Vegas to St. Louis?

    Yes. Flexible dates can save you up to 37% on flights from Las Vegas to St. Louis. Friday is the cheapest departure day at $285 round-trip on average, while Saturday is the most expensive at $450, a difference of $165.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Las Vegas to St. Louis?

    2 airlines operate flights between Las Vegas and St. Louis. The airlines offering nonstop flights on this route include:

    • Southwest
    • Frontier

  • How much time can I save by choosing a different layover airport from Las Vegas to St. Louis?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 5h 32m, compared with 5h 47m via Kansas City (MCI) and 5h 59m via Minneapolis St Paul (MSP).

  • What is the time difference between Las Vegas and St. Louis?

    St. Louis is 2 hours ahead of Las Vegas (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in St. Louis?

    Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Las Vegas to St. Louis flights?

    Among airlines operating Las Vegas to St. Louis flights:

    • Frontier: offers free seat selection
    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Las Vegas to St. Louis flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Frontier: a cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • Can I use public transportation to travel to Harry Reid International Airport from Las Vegas?

    The bus is your only choice if you'd prefer to use public transportation to go to the airport. Bus lines 109 and 108 go between the city center and the LAS airport. Both buses arrives at the airport's zero level after departing from SB Casino Center after Bonneville.

  • Are there nursing suites at Harry Reid International Airport?

    For any parent traveling with a baby, there are around three lactation facilities at LAS airport. The nursing suites are private and have an indication deadbolt that may be used to secure them from the inside. Additionally, they have ample area for your stroller and luggage while yet allowing you to sit and nurse your baby. The accommodations may be found on the Concourse C connector between gates B and A, in Concourse D close to the playground, and close to gate E9 in Terminal 3.

  • How do I get from STL to St. Louis?

    You can take a taxi or a Towncar from STL if you want to quickly get to St.Louis . It takes a taxi roughly 20min to cover the 15 miles distance. On the other hand, the bus or train are your only choices if you like taking public transportation. With a bus, you can get to downtown St. Louis in approximately 1h 7min while the MTR train takes roughly 31min.

  • Is it possible to find car rentals at STL?

    STL features multiple car rental agencies. There is a location at the airport for every major automobile rental company in the US, including Budget, Alamo, Avis, and Hertz. It is advised that you reserve your rental in advance for simpler servicing.

Your guide to booking Las Vegas to St. Louis flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Saturday. On this route, Friday flights average $285, about $165 less than Saturday fares (37% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 4 weeks before you fly. On this route, that window historically saves about 51% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Las Vegas to St. Louis trip for December. Fares historically average $232 round-trip in that month - typically $226 less than the most expensive month, which is October (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Chicago O'Hare Intl Airport (ORD) can be cheaper than flying direct. The cheapest layover option averages $252 round-trip on this route - about $63 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.

    • Renaissance St. Louis Airport Hotel
    • Drury Inn & Suites St. Louis Airport
    • Hyatt Select St. Louis Airport
  • Consider taking connecting flights as opposed to one direct flight to reduce the cost of your ticket from Las Vegas (LAS) to St. Louis (STL). Since connecting flights frequently have lower demand than direct flights, most airlines typically offer lower costs for them. These flights usually have layovers at DEN, MSP, ORD and SLC.
  • There are numerous outdoor pet relief places available to incoming guests at Harry Reid International Airport (LAS). Two more can be found outside of Terminal 1, and one is outside of Terminal 3. The other is outside the ticketing area. If you find that those ones are far away consider using the one near the baggage claim area.
  • Please keep your pet in their secure carriers the entire time you are at the airport if you are flying out through LAS to STL. If the pet is a service animal, it must be kept on a leash at all times. However, when using the pet relief facilities, you don't have to put them on leash.
  • If you're flying out of Harry Reid International Airport (LAS) in an early morning flight, you should consider making a reservation at Tru by Hilton Las Vegas Airport Hotel. Located around 1.4 miles away, it is one of the LAS airport hotels, offering you a practical spot to stay so you won't have to struggle with the morning traffic to the airport and be at risk of missing your flight.
  • Choose the flights using the automatic transfer option when making a reservation for a connecting flight to STL from LAS rather than the self-transfer option. This is due to the fact that self-transfer flights need you to check both your bags and yourself into each flight.

Prefer to fly direct from Las Vegas to St. Louis?

 
Find which airlines fly direct from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

Las Vegas Harry Reid Intl to Lambert-St Louis

Monday

Southwest,Frontier

Southwest,Frontier

Tuesday

Frontier,Southwest

Frontier,Southwest

Wednesday

Southwest

Southwest

Thursday

Frontier,Southwest

Frontier,Southwest

Friday

Southwest

Southwest

Saturday

Frontier,Southwest

Frontier,Southwest

Sunday

Frontier,Southwest

Frontier,Southwest

See more direct flights

Direct returns

Lambert-St Louis to Las Vegas Harry Reid Intl

Monday

Southwest,Frontier

Southwest,Frontier

Tuesday

Frontier,Southwest

Frontier,Southwest

Wednesday

Southwest

Southwest

Thursday

Frontier,Southwest

Frontier,Southwest

Friday

Southwest

Southwest

Saturday

Frontier,Southwest

Frontier,Southwest

Sunday

Frontier,Southwest

Frontier,Southwest

See more direct flights

More options for your flight from Las Vegas to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental