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Find low faresSouthwest® flights from San Antonio to Philadelphia from $158
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1 Passenger
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Low fares from San Antonio to Philadelphia
$
San Antonio (SAT)to
Philadelphia (PHL)
Depart: 03/14/2026
One-way
Basic
From
$158
Seen: 10 hrs ago
San Antonio (SAT)to
Philadelphia (PHL)
Depart: 03/28/2026
One-way
Basic
From
$158
Seen: 2 hrs ago
San Antonio (SAT)to
Philadelphia (PHL)
Depart: 03/14/2026
One-way
Choice
From
$190
Seen: 10 hrs ago
San Antonio (SAT)to
Philadelphia (PHL)
Depart: 03/28/2026
One-way
Choice
From
$190
Seen: 2 hrs ago
San Antonio (SAT)to
Philadelphia (PHL)
Depart: 04/07/2026
One-way
Basic
From
$191
Seen: 14 hrs ago
San Antonio (SAT)to
Philadelphia (PHL)
Depart: 03/25/2026
One-way
Basic
From
$191
Seen: 3 hrs ago
Explore flights from San Antonio to Philadelphia
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Flight Details
Departing from:
San Antonio International Airport
Arriving at:
Philadelphia International Airport
Distance:
1496 miles
Route Information
119† 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 119 weekly flights from San Antonio to Philadelphia on Southwest Airlines.
To find the lowest fares by day and time to fly San Antonio to Philadelphia with Southwest, check out our Low Fare Calendar.
You can rent a car at Philadelphia International Airport book yours with your flight.
Yes! Flights from San Antonio to Philadelphia—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.