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Find low faresSouthwest® flights from Kansas City to San Antonio from $133
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Low fares from Kansas City to San Antonio
$
Kansas City (MCI)to
San Antonio (SAT)
Depart: 04/22/2026
One-way
Basic
From
$133
Seen: 19 hrs ago
Kansas City (MCI)to
San Antonio (SAT)
Depart: 03/18/2026
One-way
Basic
From
$133
Seen: 16 hrs ago
Kansas City (MCI)to
San Antonio (SAT)
Depart: 04/07/2026
One-way
Basic
From
$133
Seen: 18 hrs ago
Kansas City (MCI)to
San Antonio (SAT)
Depart: 03/03/2026
One-way
Basic
From
$139
Seen: 16 hrs ago
Kansas City (MCI)to
San Antonio (SAT)
Depart: 03/09/2026
One-way
Basic
From
$147
Seen: 16 hrs ago
Kansas City (MCI)to
San Antonio (SAT)
Depart: 05/05/2026
One-way
Basic
From
$147
Seen: 2 hrs ago
Explore flights from Kansas City to San Antonio
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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.