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Find low faresSouthwest® flights from San Antonio to Jacksonville from $144
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Low fares from San Antonio to Jacksonville
$
San Antonio (SAT)to
Jacksonville (JAX)
Depart: 02/25/2026
One-way
Basic
From
$144
Seen: 16 hrs ago
San Antonio (SAT)to
Jacksonville (JAX)
Depart: 02/24/2026
One-way
Basic
From
$144
Seen: 15 hrs ago
San Antonio (SAT)to
Jacksonville (JAX)
Depart: 03/04/2026
One-way
Basic
From
$149
Seen: 6 hrs ago
San Antonio (SAT)to
Jacksonville (JAX)
Depart: 02/21/2026
One-way
Basic
From
$170
Seen: 20 hrs ago
San Antonio (SAT)to
Jacksonville (JAX)
Depart: 03/17/2026
One-way
Basic
From
$174
Seen: 6 hrs ago
San Antonio (SAT)to
Jacksonville (JAX)
Depart: 03/11/2026
One-way
Basic
From
$174
Seen: 18 hrs ago
Explore flights from San Antonio to Jacksonville
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Flight Details
Departing from:
San Antonio International Airport
Arriving at:
Jacksonville International Airport
Distance:
1007 miles
Route Information
117† Weekly flights
† 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
There are 117 weekly flights from San Antonio to Jacksonville on Southwest Airlines.
To find the lowest fares by day and time to fly San Antonio to Jacksonville with Southwest, check out our Low Fare Calendar.
You can rent a car at Jacksonville International Airport book yours with your flight.
Yes! Flights from San Antonio to Jacksonville—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.