Southwest® flights from St. Louis to Tucson from $135

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Low fares from St. Louis to Tucson

$

St. Louis (STL)to

Tucson (TUS)
Depart: 11/14/2026

One-way

Basic

From
$135
Seen: 5 hrs ago

St. Louis (STL)to

Tucson (TUS)
Depart: 11/10/2026

One-way

Basic

From
$135
Seen: 2 hrs ago

St. Louis (STL)to

Tucson (TUS)
Depart: 01/19/2027

One-way

Basic

From
$135
Seen: 1 hour ago

St. Louis (STL)to

Tucson (TUS)
Depart: 11/25/2026

One-way

Basic

From
$141
Seen: 23 hrs ago

St. Louis (STL)to

Tucson (TUS)
Depart: 11/19/2026

One-way

Basic

From
$153
Seen: 10 hrs ago

St. Louis (STL)to

Tucson (TUS)
Depart: 11/21/2026

One-way

Basic

From
$159
Seen: 12 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 Tucson

Oct 2026
From$474*
Seen: 23 hrs ago
One Way/Basic
Nov 2026
From$135*
Seen: 5 hrs ago
One Way/Basic
Dec 2026
From$196*
Seen: 23 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $135
cmp-daily-histogram-bars-legend-max-price-aria-label $549
Displaying fares for October-2026
  • STL–TUS: cmp-view-offers-disclaimer. Find Offers
    20

    Tue

    OCT

  • STL–TUS, 10/21/2026: From $549
    21

    Wed

  • STL–TUS: cmp-view-offers-disclaimer. Find Offers
    22

    Thu

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

    Fri

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

    Sat

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

    Sun

  • STL–TUS, 10/26/2026: From $474
    26

    Mon

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

    Tue

  • STL–TUS, 10/28/2026: From $474
    28

    Wed

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

    Thu

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

    Fri

  • STL–TUS: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

  • STL–TUS, 11/01/2026: From $289
    01

    Sun

    NOV

  • STL–TUS, 11/02/2026: From $289
    02

    Mon

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

    Tue

  • STL–TUS, 11/04/2026: From $289
    04

    Wed

  • STL–TUS: cmp-view-offers-disclaimer. Find Offers
    05

    Thu

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

    Fri

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

    Sat

  • STL–TUS, 11/08/2026: From $244
    08

    Sun

  • STL–TUS, 11/09/2026: From $249
    09

    Mon

  • STL–TUS, 11/10/2026: From $135
    10

    Tue

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

    Wed

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

    Thu

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

    Fri

  • STL–TUS, 11/14/2026: From $135
    14

    Sat

  • STL–TUS, 11/15/2026: From $226
    15

    Sun

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

    Mon

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

    Tue

  • STL–TUS, 11/18/2026: From $209
    18

    Wed

  • STL–TUS, 11/19/2026: From $153
    19

    Thu

    • Range$135-$549

    *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:
    Tucson International Airport
    Distance:
    1244 miles

    Questions we hear the most

    There are 149 weekly flights from St. Louis to Tucson on Southwest Airlines.
    To find the lowest fares by day and time to fly St. Louis to Tucson with Southwest, check out our Low Fare Calendar.
    You can rent a car at Tucson International Airport book yours with your flight.
    Yes! Flights from St. Louis to Tucson—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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