Southwest® flights from Sacramento to St. Louis from $256

Promo Code

Low fares from Sacramento to St. Louis

$

Sacramento (SMF)to

St. Louis (STL)
Depart: 12/16/2026

One-way

Basic

From
$256
Seen: 21 hrs ago

Sacramento (SMF)to

St. Louis (STL)
Depart: 12/17/2026

One-way

Basic

From
$256
Seen: 21 hrs ago

Sacramento (SMF)to

St. Louis (STL)
Depart: 11/16/2026

One-way

Basic

From
$256
Seen: 23 hrs ago

Sacramento (SMF)to

St. Louis (STL)
Depart: 11/05/2026

One-way

Basic

From
$256
Seen: 18 hrs ago

Sacramento (SMF)to

St. Louis (STL)
Depart: 10/17/2026

One-way

Basic

From
$256
Seen: 7 hrs ago

Sacramento (SMF)to

St. Louis (STL)
Depart: 10/21/2026

One-way

Basic

From
$256
Seen: 7 hrs ago

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Explore flights from Sacramento to St. Louis

Sep 2026
From$335*
Seen: 15 hrs ago
One Way/Basic
Oct 2026
From$256*
Seen: 21 hrs ago
One Way/Basic
Nov 2026
From$256*
Seen: 10 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $261
cmp-daily-histogram-bars-legend-max-price-aria-label $642
Displaying fares for September-2026
  • SMF–STL, 09/12/2026: From $637
    12

    Sat

    SEP

  • SMF–STL: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • SMF–STL, 09/14/2026: From $642
    14

    Mon

  • SMF–STL, 09/15/2026: From $642
    15

    Tue

  • SMF–STL, 09/16/2026: From $642
    16

    Wed

  • SMF–STL, 09/17/2026: From $642
    17

    Thu

  • SMF–STL, 09/18/2026: From $444
    18

    Fri

  • SMF–STL, 09/19/2026: From $439
    19

    Sat

  • SMF–STL, 09/20/2026: From $444
    20

    Sun

  • SMF–STL, 09/21/2026: From $444
    21

    Mon

  • SMF–STL, 09/22/2026: From $444
    22

    Tue

  • SMF–STL, 09/23/2026: From $444
    23

    Wed

  • SMF–STL, 09/24/2026: From $444
    24

    Thu

  • SMF–STL, 09/25/2026: From $335
    25

    Fri

  • SMF–STL: cmp-view-offers-disclaimer. Find Offers
    26

    Sat

  • SMF–STL: cmp-view-offers-disclaimer. Find Offers
    27

    Sun

  • SMF–STL: cmp-view-offers-disclaimer. Find Offers
    28

    Mon

  • SMF–STL, 09/29/2026: From $335
    29

    Tue

  • SMF–STL: cmp-view-offers-disclaimer. Find Offers
    30

    Wed

  • SMF–STL, 10/01/2026: From $335
    01

    Thu

    OCT

  • SMF–STL, 10/02/2026: From $266
    02

    Fri

  • SMF–STL: cmp-view-offers-disclaimer. Find Offers
    03

    Sat

  • SMF–STL, 10/04/2026: From $302
    04

    Sun

  • SMF–STL, 10/05/2026: From $266
    05

    Mon

  • SMF–STL, 10/06/2026: From $261
    06

    Tue

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

    Wed

  • SMF–STL, 10/08/2026: From $266
    08

    Thu

  • SMF–STL, 10/09/2026: From $266
    09

    Fri

  • SMF–STL, 10/10/2026: From $266
    10

    Sat

  • SMF–STL, 10/11/2026: From $302
    11

    Sun

    • Range$261-$642

    *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:
    Sacramento International Airport
    Arriving at:
    Lambert-St Louis Int'l Airport
    Average flight time:
    3 hours 40 minutes
    Distance:
    1679 miles

    Route Information

    156† Weekly flights
    • 1‡ Nonstop flight per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 1‡ Nonstop flight on Sunday

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    The average flight time from Sacramento to St. Louis is 3 hours 40 minutes.
    There are 156 weekly flights from Sacramento to St. Louis on Southwest Airlines.
    Yes, Southwest flies nonstop from Sacramento to St. Louis once per day from Monday through Friday.
    Yes, Southwest flies nonstop from Sacramento to St. Louis once per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Sacramento to St. Louis with Southwest, check out our Low Fare Calendar.
    You can rent a car at Lambert-St Louis Int'l Airport book yours with your flight.
    Yes! Flights from Sacramento to St. Louis—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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