Earn point on your loyalty program!arrow arc left

Cheap flights from Philadelphia (PHL) to San Antonio (SAT)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Philadelphia (PHL) to San Antonio (SAT)

How to find the cheapest flight from Philadelphia (PHL) to San Antonio (SAT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Philadelphia (PHL) to San Antonio (SAT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Philadelphia (PHL) to San Antonio (SAT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Philadelphia to San Antonio in November , December 2026

18 Nov - 04 Dec $ 421.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
PHL
Philadelphia
Pick dates
21 Nov - 06 Dec $ 1,222.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
PHL
Philadelphia
Pick dates
21 Nov - 02 Dec $ 1,339.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
PHL
Philadelphia
Pick dates

Last minute flights from Philadelphia to San Antonio

18 Nov - 01 Dec $ 481.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
2 STOPS
PHL
Philadelphia
Pick dates
21 Nov - 30 Nov $ 1,651.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
PHL
Philadelphia
Pick dates
21 Nov - 30 Nov $ 1,651.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
PHL
Philadelphia
Pick dates

One-way flights to San Antonio from Philadelphia

9:30 AM - 6:10 AM
BREEZE
1 Stops
24h 15m
PHL - SAT
$ 177
Kiwi
Pick dates
6:46 PM - 10:58 AM
Alaska Airlines
1 Stops
23h 11m
PHL - SAT
$ 749
Kiwi
Pick dates
7:00 AM - 10:58 AM
Alaska Airlines
1 Stops
10h 57m
PHL - SAT
$ 803
Kiwi
Pick dates

How to find the cheapest flight from Philadelphia (PHL) to San Antonio (SAT)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Philadelphia (PHL) to San Antonio (SAT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Philadelphia (PHL) to San Antonio (SAT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.