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

Know your dates, get live prices in seconds

Departure

Save up to 31%
Book Flight + Hotel at the same time

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 April , May 2026

18 Apr - 06 May $ 160.00

PHL

Philadelphia

Frontier Airlines

1 STOPS

SAT

San Antonio

SAT

San Antonio

Frontier Airlines

1 STOPS

PHL

Philadelphia

Pick dates

10 Apr - 04 May $ 1,089.00

PHL

Philadelphia

Alaska Airlines

1 STOPS

SAT

San Antonio

SAT

San Antonio

Alaska Airlines

1 STOPS

PHL

Philadelphia

Pick dates

13 Apr - 04 May $ 1,090.00

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 Apr - 30 Apr $ 226.00

PHL

Philadelphia

Frontier Airlines

1 STOPS

SAT

San Antonio

SAT

San Antonio

Frontier Airlines

1 STOPS

PHL

Philadelphia

Pick dates

10 Apr - 30 Apr $ 1,233.00

PHL

Philadelphia

Alaska Airlines

1 STOPS

SAT

San Antonio

SAT

San Antonio

Alaska Airlines

1 STOPS

PHL

Philadelphia

Pick dates

13 Apr - 30 Apr $ 1,235.00

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

8:51 AM - 3:23 PM
Frontier Airlines

1 Stops

9h 44m
PHL - SAT

$ 98
Kiwi

Pick dates

12:55 PM - 4:33 PM
United Airlines

1 Stops

5h 48m
PHL - SAT

$ 327
Kiwi

Pick dates

12:55 PM - 4:33 PM
United Airlines

1 Stops

5h 48m
PHL - SAT

$ 331
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.