Southwest® flights from St. Louis to Los Angeles from $145

Promo Code

Low fares from St. Louis to Los Angeles

$

St. Louis (STL)to

Los Angeles (LAX)
Depart: 12/15/2026

One-way

Basic

From
$145
Seen: 19 hrs ago

St. Louis (STL)to

Los Angeles (LAX)
Depart: 12/21/2026

One-way

Basic

From
$145
Seen: 10 hrs ago

St. Louis (STL)to

Los Angeles (LAX)
Depart: 01/20/2027

One-way

Basic

From
$145
Seen: 8 hrs ago

St. Louis (STL)to

Los Angeles (LAX)
Depart: 12/03/2026

One-way

Basic

From
$145
Seen: 16 hrs ago

St. Louis (STL)to

Los Angeles (LAX)
Depart: 11/09/2026

One-way

Basic

From
$145
Seen: 18 hrs ago

St. Louis (STL)to

Los Angeles (LAX)
Depart: 12/05/2026

One-way

Basic

From
$145
Seen: 10 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

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Explore flights from St. Louis to Los Angeles

Oct 2026
From$315*
Seen: 19 hrs ago
One Way/Basic
Nov 2026
From$145*
Seen: 18 hrs ago
One Way/Basic
Dec 2026
From$145*
Seen: 2 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $145
cmp-daily-histogram-bars-legend-max-price-aria-label $356
Displaying fares for October-2026
  • STL–LAX, 10/22/2026: From $356
    22

    Thu

    OCT

  • STL–LAX, 10/23/2026: From $356
    23

    Fri

  • STL–LAX, 10/24/2026: From $315
    24

    Sat

  • STL–LAX: cmp-view-offers-disclaimer. Find Offers
    25

    Sun

  • STL–LAX, 10/26/2026: From $356
    26

    Mon

  • STL–LAX, 10/27/2026: From $315
    27

    Tue

  • STL–LAX, 10/28/2026: From $315
    28

    Wed

  • STL–LAX, 10/29/2026: From $356
    29

    Thu

  • STL–LAX, 10/30/2026: From $356
    30

    Fri

  • STL–LAX, 10/31/2026: From $315
    31

    Sat

  • STL–LAX, 11/01/2026: From $356
    01

    Sun

    NOV

  • STL–LAX, 11/02/2026: From $356
    02

    Mon

  • STL–LAX, 11/03/2026: From $315
    03

    Tue

  • STL–LAX, 11/04/2026: From $315
    04

    Wed

  • STL–LAX, 11/05/2026: From $356
    05

    Thu

  • STL–LAX, 11/06/2026: From $356
    06

    Fri

  • STL–LAX: cmp-view-offers-disclaimer. Find Offers
    07

    Sat

  • STL–LAX, 11/08/2026: From $356
    08

    Sun

  • STL–LAX, 11/09/2026: From $145
    09

    Mon

  • STL–LAX, 11/10/2026: From $145
    10

    Tue

  • STL–LAX, 11/11/2026: From $145
    11

    Wed

  • STL–LAX, 11/12/2026: From $170
    12

    Thu

  • STL–LAX, 11/13/2026: From $170
    13

    Fri

  • STL–LAX, 11/14/2026: From $155
    14

    Sat

  • STL–LAX, 11/15/2026: From $170
    15

    Sun

  • STL–LAX, 11/16/2026: From $145
    16

    Mon

  • STL–LAX, 11/17/2026: From $145
    17

    Tue

  • STL–LAX: cmp-view-offers-disclaimer. Find Offers
    18

    Wed

  • STL–LAX, 11/19/2026: From $155
    19

    Thu

  • STL–LAX, 11/20/2026: From $209
    20

    Fri

  • STL–LAX, 11/21/2026: From $155
    21

    Sat

    • Range$145-$356

    *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:
    Los Angeles International Airport
    Average flight time:
    4 hours 3 minutes
    Distance:
    1592 miles

    Questions we hear the most

    The average flight time from St. Louis to Los Angeles is 4 hours 3 minutes.
    There are 156 weekly flights from St. Louis to Los Angeles on Southwest Airlines.
    Yes, Southwest flies nonstop from St. Louis to Los Angeles 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from St. Louis to Los Angeles 2 times per day on Saturdays and 3 times per day on Sundays.
    To find the lowest fares by day and time to fly St. Louis to Los Angeles with Southwest, check out our Low Fare Calendar.
    You can rent a car at Los Angeles International Airport book yours with your flight.
    Yes! Flights from St. Louis to Los Angeles—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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