Southwest® flights from Baltimore/Washington to San Antonio from $166

Promo Code

Low fares from Baltimore/Washington to San Antonio

$

Baltimore/Washington (BWI)to

San Antonio (SAT)
Depart: 04/29/2026

One-way

Basic

From
$166
Seen: 1 hour ago

Baltimore/Washington (BWI)to

San Antonio (SAT)
Depart: 04/07/2026

One-way

Basic

From
$166
Seen: 4 hrs ago

Baltimore/Washington (BWI)to

San Antonio (SAT)
Depart: 05/20/2026

One-way

Basic

From
$166
Seen: 8 hrs ago

Baltimore/Washington (BWI)to

San Antonio (SAT)
Depart: 04/15/2026

One-way

Basic

From
$166
Seen: 2 hrs ago

Baltimore/Washington (BWI)to

San Antonio (SAT)
Depart: 04/09/2026

One-way

Basic

From
$186
Seen: 9 hrs ago

Baltimore/Washington (BWI)to

San Antonio (SAT)
Depart: 04/30/2026

One-way

Basic

From
$186
Seen: 2 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from Baltimore/Washington to San Antonio

*Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

Explore Flights from Other Popular Origins

Popular Flights from Baltimore/Washington