Southwest® flights from St. Louis to Salt Lake City from $227

Promo Code

Low fares from St. Louis to Salt Lake City

$

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 10/03/2026

One-way

Basic

From
$227
Seen: 20 hrs ago

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 10/29/2026

One-way

Basic

From
$232
Seen: 21 hrs ago

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 10/05/2026

One-way

Basic

From
$232
Seen: 23 hrs ago

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 11/03/2026

One-way

Basic

From
$232
Seen: 19 hrs ago

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 12/11/2026

One-way

Basic

From
$232
Seen: 9 hrs ago

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 11/04/2026

One-way

Basic

From
$232
Seen: 16 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.

Find low fares

Explore flights from St. Louis to Salt Lake City

Sep 2026
From$310*
Seen: 8 hrs ago
One Way/Basic
Oct 2026
From$227*
Seen: 20 hrs ago
One Way/Basic
Nov 2026
From$232*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $227
cmp-daily-histogram-bars-legend-max-price-aria-label $470
Displaying fares for September-2026
  • STL–SLC, 09/12/2026: From $470
    12

    Sat

    SEP

  • STL–SLC, 09/13/2026: From $470
    13

    Sun

  • STL–SLC, 09/14/2026: From $470
    14

    Mon

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

    Tue

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

    Wed

  • STL–SLC, 09/17/2026: From $470
    17

    Thu

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

    Fri

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

    Sat

  • STL–SLC, 09/20/2026: From $435
    20

    Sun

  • STL–SLC, 09/21/2026: From $435
    21

    Mon

  • STL–SLC, 09/22/2026: From $435
    22

    Tue

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

    Wed

  • STL–SLC, 09/24/2026: From $435
    24

    Thu

  • STL–SLC, 09/25/2026: From $435
    25

    Fri

  • STL–SLC, 09/26/2026: From $310
    26

    Sat

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

    Sun

  • STL–SLC, 09/28/2026: From $310
    28

    Mon

  • STL–SLC, 09/29/2026: From $310
    29

    Tue

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

    Wed

  • STL–SLC, 10/01/2026: From $310
    01

    Thu

    OCT

  • STL–SLC: cmp-view-offers-disclaimer. Find Offers
    02

    Fri

  • STL–SLC, 10/03/2026: From $227
    03

    Sat

  • STL–SLC, 10/04/2026: From $269
    04

    Sun

  • STL–SLC, 10/05/2026: From $232
    05

    Mon

  • STL–SLC: cmp-view-offers-disclaimer. Find Offers
    06

    Tue

  • STL–SLC, 10/07/2026: From $269
    07

    Wed

  • STL–SLC: cmp-view-offers-disclaimer. Find Offers
    08

    Thu

  • STL–SLC, 10/09/2026: From $269
    09

    Fri

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

    Sat

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

    Sun

    • Range$227-$470

    *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:
    Salt Lake City International Airport
    Distance:
    1156 miles

    Route Information

    156† Weekly flights

    † 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

    There are 156 weekly flights from St. Louis to Salt Lake City on Southwest Airlines.
    To find the lowest fares by day and time to fly St. Louis to Salt Lake City with Southwest, check out our Low Fare Calendar.
    You can rent a car at Salt Lake City International Airport book yours with your flight.
    Yes! Flights from St. Louis to Salt Lake City—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.

    Explore Flights from Other Popular Origins

    Popular Flights from St. Louis