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

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Low fares from Kansas City to San Antonio

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Kansas City (MCI)to

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

One-way

Basic

From
$99
Seen: 18 hrs ago

Kansas City (MCI)to

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

One-way

Basic

From
$99
Seen: 17 hrs ago

Kansas City (MCI)to

San Antonio (SAT)
Depart: 09/22/2026

One-way

Basic

From
$99
Seen: 19 hrs ago

Kansas City (MCI)to

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

One-way

Basic

From
$99
Seen: 20 hrs ago

Kansas City (MCI)to

San Antonio (SAT)
Depart: 09/08/2026

One-way

Basic

From
$99
Seen: 9 hrs ago

Kansas City (MCI)to

San Antonio (SAT)
Depart: 08/25/2026

One-way

Basic

From
$99
Seen: 1 hour ago

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Explore flights from Kansas City to San Antonio

Aug 2026
From$99*
Seen: 1 hour ago
One Way/Basic
Sep 2026
From$99*
Seen: 18 hrs ago
One Way/Basic
Oct 2026
From$99*
Seen: 8 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, 08/02/2026: From $499
    02

    Sun

    AUG

  • MCI–SAT, 08/03/2026: From $499
    03

    Mon

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    04

    Tue

  • MCI–SAT, 08/05/2026: From $499
    05

    Wed

  • MCI–SAT, 08/06/2026: From $499
    06

    Thu

  • MCI–SAT, 08/07/2026: From $499
    07

    Fri

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

    Sat

  • MCI–SAT, 08/09/2026: From $338
    09

    Sun

  • MCI–SAT, 08/10/2026: From $338
    10

    Mon

  • MCI–SAT, 08/11/2026: From $338
    11

    Tue

  • MCI–SAT, 08/12/2026: From $338
    12

    Wed

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    13

    Thu

  • MCI–SAT, 08/14/2026: From $338
    14

    Fri

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

    Sat

  • MCI–SAT, 08/16/2026: From $244
    16

    Sun

  • MCI–SAT, 08/17/2026: From $244
    17

    Mon

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    18

    Tue

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

    Wed

  • MCI–SAT, 08/20/2026: From $244
    20

    Thu

  • MCI–SAT, 08/21/2026: From $244
    21

    Fri

  • MCI–SAT, 08/22/2026: From $109
    22

    Sat

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    23

    Sun

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    24

    Mon

  • MCI–SAT, 08/25/2026: From $99
    25

    Tue

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

    Wed

  • MCI–SAT, 08/27/2026: From $119
    27

    Thu

  • MCI–SAT, 08/28/2026: From $119
    28

    Fri

  • MCI–SAT, 08/29/2026: From $109
    29

    Sat

  • MCI–SAT, 08/30/2026: From $169
    30

    Sun

  • MCI–SAT, 08/31/2026: From $119
    31

    Mon

  • MCI–SAT: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    SEP

    • 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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