Southwest® flights from San Antonio to Baltimore/Washington from $139

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Low fares from San Antonio to Baltimore/Washington

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San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 12/09/2026

One-way

Basic

From
$139
Seen: 21 hrs ago

San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 12/16/2026

One-way

Basic

From
$139
Seen: 22 hrs ago

San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 11/09/2026

One-way

Basic

From
$139
Seen: 20 hrs ago

San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 12/08/2026

One-way

Basic

From
$139
Seen: 23 hrs ago

San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 11/23/2026

One-way

Basic

From
$149
Seen: 15 hrs ago

San Antonio (SAT)to

Baltimore/Washington (BWI)
Depart: 12/09/2026

One-way

Choice

From
$184
Seen: 21 hrs ago

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Explore flights from San Antonio to Baltimore/Washington

Oct 2026
From$222*
Seen: 11 hrs ago
One Way/Basic
Nov 2026
From$139*
Seen: 20 hrs ago
One Way/Basic
Dec 2026
From$139*
Seen: 23 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $222
cmp-daily-histogram-bars-legend-max-price-aria-label $581
Displaying fares for October-2026
  • SAT–BWI, 10/03/2026: From $581
    03

    Sat

    OCT

  • SAT–BWI: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

  • SAT–BWI, 10/05/2026: From $581
    05

    Mon

  • SAT–BWI, 10/06/2026: From $581
    06

    Tue

  • SAT–BWI, 10/07/2026: From $581
    07

    Wed

  • SAT–BWI, 10/08/2026: From $581
    08

    Thu

  • SAT–BWI, 10/09/2026: From $526
    09

    Fri

  • SAT–BWI, 10/10/2026: From $526
    10

    Sat

  • SAT–BWI, 10/11/2026: From $526
    11

    Sun

  • SAT–BWI: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

  • SAT–BWI, 10/13/2026: From $526
    13

    Tue

  • SAT–BWI, 10/14/2026: From $526
    14

    Wed

  • SAT–BWI, 10/15/2026: From $526
    15

    Thu

  • SAT–BWI, 10/16/2026: From $335
    16

    Fri

  • SAT–BWI: cmp-view-offers-disclaimer. Find Offers
    17

    Sat

  • SAT–BWI, 10/18/2026: From $335
    18

    Sun

  • SAT–BWI, 10/19/2026: From $335
    19

    Mon

  • SAT–BWI, 10/20/2026: From $335
    20

    Tue

  • SAT–BWI, 10/21/2026: From $335
    21

    Wed

  • SAT–BWI, 10/22/2026: From $335
    22

    Thu

  • SAT–BWI, 10/23/2026: From $222
    23

    Fri

  • SAT–BWI, 10/24/2026: From $222
    24

    Sat

  • SAT–BWI: cmp-view-offers-disclaimer. Find Offers
    25

    Sun

  • SAT–BWI: cmp-view-offers-disclaimer. Find Offers
    26

    Mon

  • SAT–BWI: cmp-view-offers-disclaimer. Find Offers
    27

    Tue

  • SAT–BWI, 10/28/2026: From $222
    28

    Wed

  • SAT–BWI, 10/29/2026: From $222
    29

    Thu

  • SAT–BWI, 10/30/2026: From $222
    30

    Fri

  • SAT–BWI, 10/31/2026: From $222
    31

    Sat

  • SAT–BWI: cmp-view-offers-disclaimer. Find Offers
    01

    Sun

    NOV

  • SAT–BWI, 11/02/2026: From $222
    02

    Mon

    • Range$222-$581

    *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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