Southwest® flights from Colorado Springs to St. Louis from $135

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Low fares from Colorado Springs to St. Louis

$

Colorado Springs (COS)to

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

One-way

Basic

From
$135
Seen: 20 hrs ago

Colorado Springs (COS)to

St. Louis (STL)
Depart: 11/14/2026

One-way

Basic

From
$135
Seen: 16 hrs ago

Colorado Springs (COS)to

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

One-way

Basic

From
$135
Seen: 23 hrs ago

Colorado Springs (COS)to

St. Louis (STL)
Depart: 12/22/2026

One-way

Basic

From
$135
Seen: 9 hrs ago

Colorado Springs (COS)to

St. Louis (STL)
Depart: 12/14/2026

One-way

Basic

From
$135
Seen: 19 hrs ago

Colorado Springs (COS)to

St. Louis (STL)
Depart: 11/09/2026

One-way

Basic

From
$135
Seen: 9 hrs ago

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Explore flights from Colorado Springs to St. Louis

Oct 2026
From$315*
Seen: 21 hrs ago
One Way/Basic
Nov 2026
From$135*
Seen: 16 hrs ago
One Way/Basic
Dec 2026
From$135*
Seen: 19 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $135
cmp-daily-histogram-bars-legend-max-price-aria-label $361
Displaying fares for October-2026
  • COS–STL, 10/22/2026: From $361
    22

    Thu

    OCT

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

    Fri

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    24

    Sat

  • COS–STL, 10/25/2026: From $361
    25

    Sun

  • COS–STL, 10/26/2026: From $361
    26

    Mon

  • COS–STL, 10/27/2026: From $315
    27

    Tue

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    28

    Wed

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    29

    Thu

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    30

    Fri

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    31

    Sat

  • COS–STL, 11/01/2026: From $340
    01

    Sun

    NOV

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    02

    Mon

  • COS–STL, 11/03/2026: From $249
    03

    Tue

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    04

    Wed

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    05

    Thu

  • COS–STL, 11/06/2026: From $249
    06

    Fri

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    07

    Sat

  • COS–STL, 11/08/2026: From $254
    08

    Sun

  • COS–STL, 11/09/2026: From $135
    09

    Mon

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

    Tue

  • COS–STL, 11/11/2026: From $135
    11

    Wed

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

    Thu

  • COS–STL, 11/13/2026: From $156
    13

    Fri

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

    Sat

  • COS–STL, 11/15/2026: From $249
    15

    Sun

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

    Mon

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    17

    Tue

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    18

    Wed

  • COS–STL, 11/19/2026: From $334
    19

    Thu

  • COS–STL, 11/20/2026: From $161
    20

    Fri

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

    Sat

    • Range$135-$361

    *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:
    City of Colorado Springs Municipal Airport
    Arriving at:
    Lambert-St Louis Int'l Airport
    Distance:
    773 miles

    Questions we hear the most

    There are 136 weekly flights from Colorado Springs to St. Louis on Southwest Airlines.
    To find the lowest fares by day and time to fly Colorado Springs 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 Colorado Springs 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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