Southwest® flights from St. Louis to Las Vegas from $170

Promo Code

Low fares from St. Louis to Las Vegas

$

St. Louis (STL)to

Las Vegas (LAS)
Depart: 12/07/2026

One-way

Basic

From
$170
Seen: 14 hrs ago

St. Louis (STL)to

Las Vegas (LAS)
Depart: 11/25/2026

One-way

Basic

From
$170
Seen: 13 hrs ago

St. Louis (STL)to

Las Vegas (LAS)
Depart: 12/14/2026

One-way

Basic

From
$170
Seen: 9 hrs ago

St. Louis (STL)to

Las Vegas (LAS)
Depart: 12/09/2026

One-way

Basic

From
$170
Seen: 20 hrs ago

St. Louis (STL)to

Las Vegas (LAS)
Depart: 12/01/2026

One-way

Basic

From
$170
Seen: 19 hrs ago

St. Louis (STL)to

Las Vegas (LAS)
Depart: 12/08/2026

One-way

Basic

From
$170
Seen: 23 hrs ago

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Explore flights from St. Louis to Las Vegas

Oct 2026
From$589*
Seen: 22 hrs ago
One Way/Basic
Nov 2026
From$170*
Seen: 10 hrs ago
One Way/Basic
Dec 2026
From$170*
Seen: 19 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $170
cmp-daily-histogram-bars-legend-max-price-aria-label $594
Displaying fares for October-2026
  • STL–LAS, 10/29/2026: From $589
    29

    Thu

    OCT

  • STL–LAS, 10/30/2026: From $589
    30

    Fri

  • STL–LAS, 10/31/2026: From $594
    31

    Sat

  • STL–LAS, 11/01/2026: From $589
    01

    Sun

    NOV

  • STL–LAS, 11/02/2026: From $589
    02

    Mon

  • STL–LAS, 11/03/2026: From $589
    03

    Tue

  • STL–LAS, 11/04/2026: From $589
    04

    Wed

  • STL–LAS, 11/05/2026: From $518
    05

    Thu

  • STL–LAS, 11/06/2026: From $518
    06

    Fri

  • STL–LAS, 11/07/2026: From $523
    07

    Sat

  • STL–LAS, 11/08/2026: From $523
    08

    Sun

  • STL–LAS, 11/09/2026: From $518
    09

    Mon

  • STL–LAS, 11/10/2026: From $518
    10

    Tue

  • STL–LAS, 11/11/2026: From $339
    11

    Wed

  • STL–LAS, 11/12/2026: From $344
    12

    Thu

  • STL–LAS, 11/13/2026: From $339
    13

    Fri

  • STL–LAS, 11/14/2026: From $344
    14

    Sat

  • STL–LAS, 11/15/2026: From $339
    15

    Sun

  • STL–LAS, 11/16/2026: From $339
    16

    Mon

  • STL–LAS, 11/17/2026: From $339
    17

    Tue

  • STL–LAS, 11/18/2026: From $339
    18

    Wed

  • STL–LAS, 11/19/2026: From $209
    19

    Thu

  • STL–LAS, 11/20/2026: From $200
    20

    Fri

  • STL–LAS, 11/21/2026: From $170
    21

    Sat

  • STL–LAS, 11/22/2026: From $229
    22

    Sun

  • STL–LAS, 11/23/2026: From $170
    23

    Mon

  • STL–LAS, 11/24/2026: From $170
    24

    Tue

  • STL–LAS, 11/25/2026: From $170
    25

    Wed

  • STL–LAS, 11/26/2026: From $180
    26

    Thu

  • STL–LAS, 11/27/2026: From $219
    27

    Fri

  • STL–LAS, 11/28/2026: From $302
    28

    Sat

    • Range$170-$594

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Lambert-St Louis Int'l Airport
    Arriving at:
    McCarran International Airport
    Average flight time:
    3 hours 31 minutes
    Distance:
    1371 miles

    Questions we hear the most

    The average flight time from St. Louis to Las Vegas is 3 hours 31 minutes.
    There are 156 weekly flights from St. Louis to Las Vegas on Southwest Airlines.
    Yes, Southwest flies nonstop from St. Louis to Las Vegas 5 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from St. Louis to Las Vegas 4 times per day on Saturdays and 6 times per day on Sundays.
    To find the lowest fares by day and time to fly St. Louis to Las Vegas with Southwest, check out our Low Fare Calendar.
    You can rent a car at McCarran International Airport book yours with your flight.
    Yes! Flights from St. Louis to Las Vegas—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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