Southwest® flights from San Antonio to Baltimore/Washington from $159

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Low fares from San Antonio to Baltimore/Washington

$

San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 10/12/2026

One-way

Basic

From
$159
Seen: 9 hrs ago

San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 09/30/2026

One-way

Basic

From
$159
Seen: 22 hrs ago

San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 10/19/2026

One-way

Basic

From
$159
Seen: 23 hrs ago

San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 10/17/2026

One-way

Basic

From
$159
Seen: 12 hrs ago

San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 11/18/2026

One-way

Basic

From
$159
Seen: 8 hrs ago

San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 11/11/2026

One-way

Basic

From
$159
Seen: 6 hrs ago

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Explore flights from San Antonio to Baltimore/Washington

Aug 2026
From$457*
Seen: 7 hrs ago
One Way/Basic
Sep 2026
From$159*
Seen: 1 hour ago
One Way/Basic
Oct 2026
From$159*
Seen: 9 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $159
cmp-daily-histogram-bars-legend-max-price-aria-label $507
Displaying fares for August-2026
  • SAT–BWI, 08/22/2026: From $507
    22

    Sat

    AUG

  • SAT–BWI, 08/23/2026: From $507
    23

    Sun

  • SAT–BWI, 08/24/2026: From $507
    24

    Mon

  • SAT–BWI, 08/25/2026: From $507
    25

    Tue

  • SAT–BWI, 08/26/2026: From $507
    26

    Wed

  • SAT–BWI, 08/27/2026: From $507
    27

    Thu

  • SAT–BWI, 08/28/2026: From $457
    28

    Fri

  • SAT–BWI, 08/29/2026: From $457
    29

    Sat

  • SAT–BWI, 08/30/2026: From $457
    30

    Sun

  • SAT–BWI, 08/31/2026: From $457
    31

    Mon

  • SAT–BWI, 09/01/2026: From $457
    01

    Tue

    SEP

  • SAT–BWI, 09/02/2026: From $457
    02

    Wed

  • SAT–BWI, 09/03/2026: From $457
    03

    Thu

  • SAT–BWI, 09/04/2026: From $320
    04

    Fri

  • SAT–BWI, 09/05/2026: From $325
    05

    Sat

  • SAT–BWI: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • SAT–BWI, 09/07/2026: From $320
    07

    Mon

  • SAT–BWI, 09/08/2026: From $325
    08

    Tue

  • SAT–BWI, 09/09/2026: From $325
    09

    Wed

  • SAT–BWI, 09/10/2026: From $320
    10

    Thu

  • SAT–BWI, 09/11/2026: From $185
    11

    Fri

  • SAT–BWI, 09/12/2026: From $159
    12

    Sat

  • SAT–BWI: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • SAT–BWI, 09/14/2026: From $159
    14

    Mon

  • SAT–BWI, 09/15/2026: From $159
    15

    Tue

  • SAT–BWI, 09/16/2026: From $159
    16

    Wed

  • SAT–BWI, 09/17/2026: From $225
    17

    Thu

  • SAT–BWI: cmp-view-offers-disclaimer. Find Offers
    18

    Fri

  • SAT–BWI: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

  • SAT–BWI, 09/20/2026: From $254
    20

    Sun

  • SAT–BWI, 09/21/2026: From $159
    21

    Mon

    • Range$159-$507

    *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.

    Flight Details

    Departing from:
    San Antonio International Airport
    Arriving at:
    Balt./Wash. International Airport
    Average flight time:
    3 hours 12 minutes
    Distance:
    1407 miles

    Route Information

    156† Weekly flights
    • 2‡ Nonstop flights per day Monday through Friday
    • 2‡ Nonstop flights on Saturday
    • 2‡ Nonstop flights on Sunday

    † 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

    The average flight time from San Antonio to Baltimore/Washington is 3 hours 12 minutes.
    There are 156 weekly flights from San Antonio to Baltimore/Washington on Southwest Airlines.
    Yes, Southwest flies nonstop from San Antonio to Baltimore/Washington 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from San Antonio to Baltimore/Washington 2 times per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly San Antonio to Baltimore/Washington with Southwest, check out our Low Fare Calendar.
    You can rent a car at Balt./Wash. International Airport book yours with your flight.
    Yes! Flights from San Antonio to Baltimore/Washington—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.

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