Southwest® flights from St. Louis to Salt Lake City from $185

Promo Code

Low fares from St. Louis to Salt Lake City

$

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 09/05/2026

One-way

Basic

From
$185
Seen: 6 hrs ago

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 09/06/2026

One-way

Basic

From
$185
Seen: 19 hrs ago

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 09/11/2026

One-way

Basic

From
$185
Seen: 12 minutes ago

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 10/24/2026

One-way

Basic

From
$199
Seen: 15 hrs ago

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 10/22/2026

One-way

Basic

From
$204
Seen: 20 hrs ago

St. Louis (STL)to

Salt Lake City (SLC)
Depart: 10/07/2026

One-way

Basic

From
$204
Seen: 23 hrs ago

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Explore flights from St. Louis to Salt Lake City

Aug 2026
From$204*
Seen: 3 hrs ago
One Way/Basic
Sep 2026
From$185*
Seen: 6 hrs ago
One Way/Basic
Oct 2026
From$199*
Seen: 15 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $204
cmp-daily-histogram-bars-legend-max-price-aria-label $460
Displaying fares for August-2026
  • STL–SLC, 08/01/2026: From $450
    01

    Sat

    AUG

  • STL–SLC, 08/02/2026: From $460
    02

    Sun

  • STL–SLC, 08/03/2026: From $460
    03

    Mon

  • STL–SLC, 08/04/2026: From $460
    04

    Tue

  • STL–SLC, 08/05/2026: From $460
    05

    Wed

  • STL–SLC, 08/06/2026: From $460
    06

    Thu

  • STL–SLC, 08/07/2026: From $425
    07

    Fri

  • STL–SLC, 08/08/2026: From $425
    08

    Sat

  • STL–SLC, 08/09/2026: From $425
    09

    Sun

  • STL–SLC, 08/10/2026: From $425
    10

    Mon

  • STL–SLC, 08/11/2026: From $425
    11

    Tue

  • STL–SLC, 08/12/2026: From $425
    12

    Wed

  • STL–SLC, 08/13/2026: From $425
    13

    Thu

  • STL–SLC, 08/14/2026: From $290
    14

    Fri

  • STL–SLC, 08/15/2026: From $290
    15

    Sat

  • STL–SLC, 08/16/2026: From $290
    16

    Sun

  • STL–SLC, 08/17/2026: From $290
    17

    Mon

  • STL–SLC, 08/18/2026: From $290
    18

    Tue

  • STL–SLC, 08/19/2026: From $290
    19

    Wed

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

    Thu

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

    Fri

  • STL–SLC, 08/22/2026: From $204
    22

    Sat

  • STL–SLC, 08/23/2026: From $249
    23

    Sun

  • STL–SLC, 08/24/2026: From $204
    24

    Mon

  • STL–SLC, 08/25/2026: From $204
    25

    Tue

  • STL–SLC, 08/26/2026: From $204
    26

    Wed

  • STL–SLC, 08/27/2026: From $204
    27

    Thu

  • STL–SLC, 08/28/2026: From $222
    28

    Fri

  • STL–SLC: cmp-view-offers-disclaimer. Find Offers
    29

    Sat

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

    Sun

  • STL–SLC, 08/31/2026: From $204
    31

    Mon

    • Range$204-$460

    *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.

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