Southwest® flights from Kansas City to San Antonio from $99

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Low fares from Kansas City to San Antonio

$

Kansas City (MCI)to

San Antonio (SAT)
Depart: 09/16/2026

One-way

Basic

From
$99
Seen: 22 hrs ago

Kansas City (MCI)to

San Antonio (SAT)
Depart: 09/29/2026

One-way

Basic

From
$99
Seen: 20 hrs ago

Kansas City (MCI)to

San Antonio (SAT)
Depart: 09/30/2026

One-way

Basic

From
$99
Seen: 7 hrs ago

Kansas City (MCI)to

San Antonio (SAT)
Depart: 09/23/2026

One-way

Basic

From
$99
Seen: 9 hrs ago

Kansas City (MCI)to

San Antonio (SAT)
Depart: 10/13/2026

One-way

Basic

From
$99
Seen: 13 hrs ago

Kansas City (MCI)to

San Antonio (SAT)
Depart: 10/27/2026

One-way

Basic

From
$99
Seen: 4 hrs ago

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Explore flights from Kansas City to San Antonio

Aug 2026
From$338*
Seen: 15 hrs ago
One Way/Basic
Sep 2026
From$99*
Seen: 22 hrs ago
One Way/Basic
Oct 2026
From$99*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $99
cmp-daily-histogram-bars-legend-max-price-aria-label $499
Displaying fares for August-2026
  • MCI–SAT, 08/21/2026: From $499
    21

    Fri

    AUG

  • MCI–SAT, 08/22/2026: From $429
    22

    Sat

  • MCI–SAT, 08/23/2026: From $499
    23

    Sun

  • MCI–SAT, 08/24/2026: From $499
    24

    Mon

  • MCI–SAT, 08/25/2026: From $499
    25

    Tue

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    26

    Wed

  • MCI–SAT, 08/27/2026: From $338
    27

    Thu

  • MCI–SAT, 08/28/2026: From $338
    28

    Fri

  • MCI–SAT, 08/29/2026: From $338
    29

    Sat

  • MCI–SAT, 08/30/2026: From $338
    30

    Sun

  • MCI–SAT, 08/31/2026: From $338
    31

    Mon

  • MCI–SAT, 09/01/2026: From $338
    01

    Tue

    SEP

  • MCI–SAT, 09/02/2026: From $338
    02

    Wed

  • MCI–SAT, 09/03/2026: From $244
    03

    Thu

  • MCI–SAT, 09/04/2026: From $244
    04

    Fri

  • MCI–SAT, 09/05/2026: From $244
    05

    Sat

  • MCI–SAT, 09/06/2026: From $256
    06

    Sun

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    07

    Mon

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

  • MCI–SAT, 09/10/2026: From $119
    10

    Thu

  • MCI–SAT, 09/11/2026: From $119
    11

    Fri

  • MCI–SAT, 09/12/2026: From $109
    12

    Sat

  • MCI–SAT, 09/13/2026: From $230
    13

    Sun

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    14

    Mon

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    15

    Tue

  • MCI–SAT, 09/16/2026: From $99
    16

    Wed

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    17

    Thu

  • MCI–SAT, 09/18/2026: From $119
    18

    Fri

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    20

    Sun

    • Range$99-$499

    *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:
    Kansas City International Airport
    Arriving at:
    San Antonio International Airport
    Average flight time:
    2 hours 3 minutes
    Distance:
    706 miles

    Route Information

    156† Weekly flights
    • 1‡ Nonstop flight per day Monday through Friday
    • 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 Kansas City to San Antonio is 2 hours 3 minutes.
    There are 156 weekly flights from Kansas City to San Antonio on Southwest Airlines.
    Yes, Southwest flies nonstop from Kansas City to San Antonio once per day from Monday through Friday.
    Yes, Southwest flies nonstop from Kansas City to San Antonio once per day on Sundays.
    To find the lowest fares by day and time to fly Kansas City to San Antonio with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Antonio International Airport book yours with your flight.
    Yes! Flights from Kansas City to San Antonio—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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