Southwest® flights from San Francisco to St. Louis from $209

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Low fares from San Francisco to St. Louis

$

San Francisco (SFO)to

St. Louis (STL)
Depart: 12/02/2026

One-way

Basic

From
$209
Seen: 12 hrs ago

San Francisco (SFO)to

St. Louis (STL)
Depart: 11/12/2026

One-way

Basic

From
$209
Seen: 14 hrs ago

San Francisco (SFO)to

St. Louis (STL)
Depart: 12/08/2026

One-way

Basic

From
$209
Seen: 15 hrs ago

San Francisco (SFO)to

St. Louis (STL)
Depart: 11/17/2026

One-way

Basic

From
$209
Seen: 4 hrs ago

San Francisco (SFO)to

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

One-way

Basic

From
$209
Seen: 23 hrs ago

San Francisco (SFO)to

St. Louis (STL)
Depart: 12/07/2026

One-way

Basic

From
$209
Seen: 7 hrs ago

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Explore flights from San Francisco to St. Louis

Oct 2026
From$217*
Seen: 10 hrs ago
One Way/Basic
Nov 2026
From$209*
Seen: 14 hrs ago
One Way/Basic
Dec 2026
From$209*
Seen: 7 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $217
cmp-daily-histogram-bars-legend-max-price-aria-label $670
Displaying fares for October-2026
  • SFO–STL, 10/02/2026: From $670
    02

    Fri

    OCT

  • SFO–STL, 10/03/2026: From $670
    03

    Sat

  • SFO–STL, 10/04/2026: From $660
    04

    Sun

  • SFO–STL, 10/05/2026: From $670
    05

    Mon

  • SFO–STL, 10/06/2026: From $660
    06

    Tue

  • SFO–STL, 10/07/2026: From $518
    07

    Wed

  • SFO–STL, 10/08/2026: From $528
    08

    Thu

  • SFO–STL, 10/09/2026: From $518
    09

    Fri

  • SFO–STL: cmp-view-offers-disclaimer. Find Offers
    10

    Sat

  • SFO–STL: cmp-view-offers-disclaimer. Find Offers
    11

    Sun

  • SFO–STL: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

  • SFO–STL, 10/13/2026: From $518
    13

    Tue

  • SFO–STL, 10/14/2026: From $518
    14

    Wed

  • SFO–STL: cmp-view-offers-disclaimer. Find Offers
    15

    Thu

  • SFO–STL: cmp-view-offers-disclaimer. Find Offers
    16

    Fri

  • SFO–STL: cmp-view-offers-disclaimer. Find Offers
    17

    Sat

  • SFO–STL, 10/18/2026: From $340
    18

    Sun

  • SFO–STL: cmp-view-offers-disclaimer. Find Offers
    19

    Mon

  • SFO–STL: cmp-view-offers-disclaimer. Find Offers
    20

    Tue

  • SFO–STL: cmp-view-offers-disclaimer. Find Offers
    21

    Wed

  • SFO–STL, 10/22/2026: From $264
    22

    Thu

  • SFO–STL: cmp-view-offers-disclaimer. Find Offers
    23

    Fri

  • SFO–STL: cmp-view-offers-disclaimer. Find Offers
    24

    Sat

  • SFO–STL, 10/25/2026: From $300
    25

    Sun

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

    Mon

  • SFO–STL, 10/27/2026: From $217
    27

    Tue

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

    Wed

  • SFO–STL, 10/29/2026: From $219
    29

    Thu

  • SFO–STL, 10/30/2026: From $227
    30

    Fri

  • SFO–STL, 10/31/2026: From $219
    31

    Sat

  • SFO–STL, 11/01/2026: From $290
    01

    Sun

    NOV

    • Range$217-$670

    *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:
    San Francisco International Airport
    Arriving at:
    Lambert-St Louis Int'l Airport
    Average flight time:
    3 hours 49 minutes
    Distance:
    1735 miles

    Route Information

    150† 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 San Francisco to St. Louis is 3 hours 49 minutes.
    There are 150 weekly flights from San Francisco to St. Louis on Southwest Airlines.
    Yes, Southwest flies nonstop from San Francisco to St. Louis once per day from Monday through Friday.
    Yes, Southwest flies nonstop from San Francisco to St. Louis once per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly San Francisco 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 San Francisco 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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